How do MRNA vaccines work?

A shot in the arm!

Vaccines have helped control many infectious diseases. But developing them is not easy and also takes years. With researchers working tirelessly for months together, what seemed like an endless wait for a vaccine against COMD-19 has given way to hope with the UK approving the Pfizer/ BioNTech vaccine for the coronavirus. COVID-19 has claimed over 1.5 million lives worldwide

Pfizer's BNT162b2, which took only 10 months from conception to approval is an MRNA vaccine approved for use in humans for the first time. The vaccine has been shown to be 95% effective in preventing COMD-19. It needs to be stored in bones containing dry ice that are capable of staying at -70 degrees Celsius, the frigid temperature needed to preserve the drug. Besides the U.K., other countries such as Bahrain Canada, Saudi Arabia, Mexico, Israel and the U.S. have approved the emergency use of the Pfizer vaccine.

What is an MRNA vaccine?           

Vaccines work by priming the body to recognise and fight the proteins produced by disease-causing organisms. Instead of using an inactivated coronavirus or viral proteins in a vaccine, an MRNA vaccine uses a messenger RNA, or MRNA, to prompt an immune response in the body. An MRNA is a synthetic genetic material, a copy of a natural component of living cells. An mRNA vaccine carries genetic instructions, which direct cells in the body to make viral proteins that prime the immune system to produce protective antibodies. If these antibodies adhere to a virus, it cannot enter the cells to replicate.

Are they safe?

MRNA vaccines are said to be safer than live vaccines, as there is a risk of the virus reverting to a dangerous form with the latter. MRNA vaccines are not likely to produce unwanted reactions. Besides, they can be made much faster than the traditional vaccines.

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What powers a spacecraft?

Scientists send spacecraft to probe objects in space. These spacecraft carry instruments that help them take pictures and collect data in space and send them back to Earth. But to do this, the spacecraft needs electricity So what powers it?

Based on the mission it is assigned, and factors such as where the spacecraft is travelling, what it plans to do there and how long it needs to work engineers choose the best way to power a spacecraft.

The Sun                     

One source of power engineers consider is energy from the Sun, or solar power. Spacecraft that orbit close to Earth are dose enough to the Sun to use solar power. These spacecraft are fitted with solar panels, which convert the Sun's energy into electricity. The electricity from the panels charges a battery in the spacecraft and can be used even when the spacecraft doesn't have direct sunlight

Batteries

Sometimes, when the mission is only for a short duration, such as the Huygens probe that landed on Titan, Saturn's largest moon, and meant to work only for a few hours, engineers may power the spacecraft with batteries. These batteries are designed to be tough since they need to withstand the harsh environment of space.

Atoms

An atom is a tiny building block of matter. Atoms need to store a lot of energy to hold themselves together. However, atoms such as radioisotopes are unstable and begin to fall apart. As they fall apart, they release energy as heat. A radioisotope power system uses the temperature difference between the heat from the unstable atoms and the cold of space to produce electricity. This system produces power for a very long time even in harsh environments. That's why this system has been used to power many of NASA's missions, including the two Voyager spacecraft that continue to send back information after over four decades in space.

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What does it mean if you can see your breath? Have you ever seen your own breath?

Have you ever seen your own breath? If you are from the cold climes, or if you have visited such places during one of those vacations, you might have encountered the phenomenon. Even if you haven't been to such places yourself, you might have seen the breath of sports stars and adventure seekers on TV and in photographs when they breathe out after intense efforts in cold climates.

Moisture matters       

While people are quick to see the role of temperature in this spectacle, the equally important role played by moisture doesn't seem to be that obvious. Since our bodies contain nearly 70% water, air in our lungs is saturated with water vapour that is at the same temperature as our bodies, typically 37 degrees Celsius.

When a person lets out this warm, saturated breath on a cold day, the air outside rapidly reduces the temperature of the exhaled air. As cold air cannot hold the same amount of moisture as warm air, the combination reaches dew point briefly and is saturated with water vapour.

Dew point and beyond

When cooled beyond dew point condensation takes place and the water vapour turns into liquid water. The cloud of mist that we see fleetingly when breathing out in cold weather is the liquid form of the breath as minuscule drops of water.

Thus, a combination of both temperature and humidity is required to see your breath. Atmospheric moisture and temperature together create the conditions that allow us to make breath clouds and have fun with it.

 

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What is the story of Marvin C. Stone and his straws?

How do you drink your beverages, irrespective of whether they are hot or cold? Do you take swigs directly off the glass or bottle, or do you take your time and sip it slowly, using a straw for good measure? If you draw straws to sip your drinks, or even just for picking lots, you are bound to like this one.

The credit for inventing the first paper straws goes to American Marvin C. Stone. Stone was born in 1842 to Chester Stone, an inventor himself, and Rachel. He started to pursue a degree after high school when the Civil War broke out in 1861.

Serves in Civil War

Stone enlisted into service and fought gallantly, but was wounded and disabled from active duty in the Battle of Lookout Mountain. He enrolled as a music major after the war, but eventually graduated in theology. Following his marriage and years as a newspaper journalist, Stone’s inventive spirit shone through when he took to business.

His business life in the late 1870s began when he invented a machine for making paper cigarette holders. His experience with making these holders and his eye for a solution to an everyday problem, led Stone to the first paper straws.

Not the “rye” way

Stone recognised that even though using natural materials such as rye grass and reeds to make straws were popular, they had serious shortcomings. When consuming beverages using these straws, they not only added an additional flavour or taste, but also some unpleasant odour. To add to this, the grass and reeds were also prone to cracking or growing musty.

By winding strips of paper around a pencil and gluing it together, Stone had his first prototypes ready. What followed was more experimenting to make his straws more conducive for drinking.

Stone used paraffin-coated manila paper to ensure that the straws didn’t become too soggy when drinking. He also settled upon 8.5 inches as the ideal length of a straw with a diameter that was just wide enough to prevent things such as lemon seeds from lodging inside and clogging the tube.

Stone received the patent for his paper straws on January 3, 1888. Within a couple of years, Stone’s factory was producing more straws than cigarette holders. By 1896, he had patents for a machine that made artificial straw from paper. He wasn’t around to see his machines go into production in 1906, however, as he died in 1899. The success of these machines brought an end to the hand-winding process.

A kind boss

Apart from being an inventor and tinkerer, Stone was seen as a benevolent boss. A kind and generous employer, Stone looked after the comfort and moral welfare of his employees, which included female workers. The factory was equipped with a singing room and a dance floor, with a library and a meeting room for debates to boot.

The winding process that Stone pioneered with his straws had implications in other industries as well. When electrical engineers employed spiral-wound tubes for radios as they were mass-produced for the first time in the 1920s, they used a similar process. From electrical motors and apparatus to aerospace, textiles and packaging for medicine and other products, the spiral-wound tubing is now found almost everywhere.

The next time you are sipping your favourite drink, spare a thought for the man who gave us the first paper straws. And in case you are doing it with your friends or family, regale them with the story of Stone.

 

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Is Meghalaya the wettest place on Earth?

Mawsynram in Meghalaya is the wettest place, based on rainfall in the world. Located in the Khasi Hills, it receives about 11,872mm (nearly 467 inches) of average annual rainfall According to the Guinness Book of World Records, the region received 26,000mm of rainfall in 1985. The mountainous terrain of Mawsynram and the nearby Cherrapunji, the second wettest place, are known for their lush greenery and scenic beauty The "living bridges are one of the most beautiful features of this region. These have been created by the local people by training the roots of rubber trees into natural bridges. With the root systems constantly growing, these bridges are self-sustaining.

Primarily due to the high altitude, it seldom gets truly hot in Mawsynram. Average monthly temperatures range from around 11 °C in January to just above 20 °C in August. The village also experiences a brief but noticeably drier season from December until February, when monthly precipitation on average does not exceed 30 millimetres (1.2 in). The little precipitation during the village's "low sun" season is something that is shared by many areas with this type of climate.

Three reasons can be cited for high rainfall at Mawsynram:

  • The warm moist winds of the northward-moving air from the Bay of Bengal during the monsoon, which cover an extensive area but are forced to converge into the narrower zone over the Khasi Hills, thus concentrating their moisture.
  • The alignment of the Khasi Hills (east to west) places them directly in the path of the airflow from the Bay of Bengal, producing a significant uplift (plus cooling, further condensation and thus more rain).
  • Finally, uplift over the Khasi Hills is virtually continuous in the monsoon period because the lifted air is constantly being pulled up by vigorous winds in the upper atmosphere; hence, the rainfall is more or less continuous.

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What is the Groom of the Stool?

It may sound repulsive but English kings those days had male servants to attend to their toileting needs. It was King Henry VII who created the position in the early 16th Century. These servants were called "Grooms of the Stool", who helped the king undress, provided the needed items for his toilet visits and also monitored the king's diet and meal times to ensure he had no difficulty with regard to his bowel movements. Here the term "stool" refers to the portable commode that would have been carried around at all times for the king's use. However, there are no records to suggest that the servants cleaned the king's bottom after he used the toilet. Wondering how anybody would have opted for the job? Apparently, it was a coveted position in the king's privy chamber!

Surely it is one of the most repulsive jobs in history. Perhaps surprisingly, it was the sons of noblemen or members of the gentry that were usually awarded the job. Over time, they came to act more as personal secretaries to the king and were rewarded with high pay and some great benefits such as the right to lodgings in every palace, the Sovereign’s old clothes, and the option to have any used bedchamber furnishings. Of course, one might hope to be reimbursed handsomely for such a role, especially if the Groom actually cleansed the royal posterior himself. In all fairness though, there are no historical records to suggest that the Groom went to these extremes, although he would have almost certainly helped the monarch undress for each occasion.

Quite amazingly, the role of Groom of the Stool carried on all the way until 1901 when King Edward VII decided to abolish it.

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Who is the longest-reigning british monarch in world history?

Queen Elizabeth II was the first British sovereign to celebrate the Platinum Jubilee (70 years of service) recently. She is currently the world's longest reigning monarch, having ascended the throne on February 6, 1952. However, the Queen still has some way to go to achieve the longest recorded reign-that of Louis XIV of France, also known as Louis the Great. Louis XIV was King of France for 72 years and 110 days, from 1643 to until his demise in 1715.

Elizabeth I - the last Tudor monarch - was born at Greenwich on 7 September 1533, the daughter of Henry VIII and his second wife, Anne Boleyn. Her early life was full of uncertainties, and her chances of succeeding to the throne seemed very slight once her half-brother Edward was born in 1537. She was then third in line behind her Roman Catholic half-sister, Princess Mary. Roman Catholics, indeed, always considered her illegitimate and she only narrowly escaped execution in the wake of a failed rebellion against Queen Mary in 1554.

Elizabeth succeeded to the throne on her half-sister's death in November 1558. She was very well-educated (fluent in five languages), and had inherited intelligence, determination and shrewdness from both parents. Her 45-year reign is generally considered one of the most glorious in English history. During it a secure Church of England was established. Its doctrines were laid down in the 39 Articles of 1563, a compromise between Roman Catholicism and Protestantism. Elizabeth herself refused to 'make windows into men's souls ... there is only one Jesus Christ and all the rest is a dispute over trifles'; she asked for outward uniformity. Most of her subjects accepted the compromise as the basis of their faith, and her church settlement probably saved England from religious wars like those which France suffered in the second half of the 16th century.

Although autocratic and capricious, Elizabeth had astute political judgement and chose her ministers well; these included William Cecil, later Lord Burghley (Secretary of State), Sir Christopher Hatton (Lord Chancellor) and Sir Francis Walsingham (in charge of intelligence and also a Secretary of State).

Overall, Elizabeth's administration consisted of some 600 officials administering the great offices of state, and a similar number dealing with the Crown lands (which funded the administrative costs). Social and economic regulation and law and order remained in the hands of the sheriffs at local level, supported by unpaid justices of the peace.

 Elizabeth's reign was one of considerable danger and difficulty for many, with threats of invasion from Spain through Ireland, and from France through Scotland. Much of northern England was in rebellion in 1569-70. A papal bull of 1570 specifically released Elizabeth's subjects from their allegiance, and she passed harsh laws against Roman Catholics after plots against her life were discovered.

As a likely successor to Elizabeth, Mary spent 19 years as Elizabeth's prisoner because Mary was the focus for rebellion and possible assassination plots, such as the Babington Plot of 1586.

During Elizabeth's long reign, the nation also suffered from high prices and severe economic depression, especially in the countryside, during the 1590s. The war against Spain was not very successful after the Armada had been beaten and, together with other campaigns, it was very costly.

Despite the combination of financial strains and prolonged war after 1588, Parliament was not summoned more often. There were only 16 sittings of the Commons during Elizabeth's reign, five of which were in the period 1588-1601. Although Elizabeth freely used her power to veto legislation, she avoided confrontation and did not attempt to define Parliament's constitutional position and rights.

Overall, Elizabeth's always shrewd and, when necessary, decisive leadership brought successes during a period of great danger both at home and abroad. She died at Richmond Palace on 24 March 1603, having become a legend in her lifetime. The date of her accession was a national holiday for two hundred years.

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Who was Emily Jane Bronte?

English novelist, Emily Bronte's Wuthering Heights was the author’s first and last novel. It is widely considered by many as one of the most incredible pieces of imaginative literature in the English canon. Let's find out what makes it a classic.

About the author

Emily Jane Bronte was born on July 30, 1818, in Thornton, Yorkshire, England. She was the fifth of six children, and the fourth daughter of Patrick Bronte and Marie Branwell. Her father was a remarkable man and a minister of the Anglican church. The author lost her mother at the tender age of three. This was the first great loss the family had to come to terms with. In 1825, Emily was sent to join her sisters Maria, Elizabeth, and Charlotte at school. Following the tuberculosis epidemic at the institution that claimed the life of her two elder sisters, Emily and Charlotte returned home. This incident is also mentioned in her sister Charlotte's magnum opus Jane Eyre. Emily spent the next 10 years of her life at home, where she played, read extensively, and wrote together with her siblings in an inventive creative workshop. During one of such playful workshops, the four participated in fictional world-making, which resulted in Charlotte and their brother Branwell teaming together to create a fictional land called Angria, and Emily with her sister Anne inventing the fictional Pacific Island of Gondol.

Emily was a meticulous reader. Charlotte in her Preface to the 1850 edition of Wuthering Heights elucidated that her sister "always wrote from the impulse of nature". However, Professor Karen O'Brien from the University of Oxford says that Emily Bronte's lone novel is a testament to her extensive reading and understanding of the works of English poets and authors such as Sir Walter Scott, William Wordsworth, and Lord Byron. The first edition of Emily Bronte's Wuthering Heights was written under the pseudonym Ellis Bell and published in 1847.

Wuthering Heights

Wuthering Heights is a powerful and complex story of love, obsession, and revenge over two generations. It is narrated by housekeeper Nelly Dean and framed from the perspective of a visiting outsider Mr. Lockwood. This narrative revolves around an orphan named Heathcliff, who is taken in by Mr. Earnshaw and brought to live in Wuthering Heights. The story explores the close-knit bond he forms with his patron's daughter Catherine.

What makes it a classic?

A treatise on women social conventions were extremely important at the time when Bronte wrote this novel. Italian writer and journalist Italo Calvino, in his book The Uses of Literature, said. "A classic is a classic book because it had never finished what it had to say, and Wuthering Heights stands true to this statement. One might think of it as just a love story. Well yes, but it's also a story of ghosts, obsession, and haunting. Where Jane Austen, the Bronte sisters predecessor, wrote about the purpose of romance and how it was intangibly linked to or ended in marriage, Emily Bronte's sole novel is a treatise on women and tries to explore what is important to her gender other than the pursuit of marriage.

Making a statement

Through Wuthering Heights Emily Bronte changed what was possible and acceptable for women to write, and how women and men can be portrayed in fiction. Her characters challenged the social expectation that one's emotions and how they are expressed or dealt with must be dictated by an individual's gender. It advocated that all the things that we as people feel are not so different just because one is a man or a woman. It broke away from the tradition that dictated that women must only write about acceptable things (such as love and marriage) and elements of the domestic sphere. It objected to the idea that men (especially heroes) are not capable of emoting grief and passion or being allowed to display any negative emotions such as vengeance. Wuthering Heights is not a moralising novel and calls the hypocrisy of the society that divides people on the basis of gender, turns a blind eye to the violence it inflicts in the name of religion, set unrealistic moral expectations, and is more concerned with respectability, than working towards creating an equal society.

Emily Bronte's exceptional imagination in Wuthering Heights, says English author Kate Mosse, "makes it clear that a woman who is an artist and a man who is an artist have the same mission-to write what we think is true and to write what we think matters, this makes her sole novel one for the ages."

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Who was Rudyard Kipling?

Rudyard Kipling was part of every child's growing up years in India. His mastery over storytelling and crafting poetry was such that he became a hit with both children and adults. Read up on the author whose birth anniversary was recently celebrated.

Remember the legend of Mowgli? The long-haired orphan boy raised in the wild by the animals? As Mowgli adventured in the woods and learned the ways of the wild, a part of us was also travelling with him, joining in his escapades. That was the magic wielded by Rudyard Kipling which made him one of the most loved children's writers. Needless to say, "The Jungle Book" (1894) was synonymous with one's childhood.

Kipling was part of every child's growing up years India. His mastery over in storytelling and crafting poetry was such that he became a hit with both children and adults. Children grew up listening to stories he wrote, whilst adults knew his poems by heart.

Early years                          

Born in Bombay in 1865, Kipling's father John Lockwood Kipling was an artist. His mother was Alice Macdonald. His parents belonged to Anglo-Indian society. Kipling was relocated to England when he was small, a journey that made his childhood traumatic. He was sent to a foster home in England. He even wrote about this traumatic period in the semi-autobiographical short story titled "Baa Baa Black Sheep" (1888).

Kipling was educated in England at the United Services College, a boarding school in Westward Ho, North Devon, England. He then returned to India when he was 17 to pursue a career in journalism which he started off as the assistant editor of the Civil and Military Gazette at Lahore. Meanwhile, "Departmental Ditties" (1886), a verse collection, marked the start of his literary career. He also published stories based on British lives in India. Thus was born "Plain Tales from the Hills" (1888). It was the first collection of short stories by Kipling. In 1888, he joined another publication Allahabad Pioneer.

His body of work spanned different genres, and styles, be it poetry, short-story or novel. His early volumes of short stories were set in India. He appealed to the masses and was a celebrated writer during his time. One of his poems that is often revered by both adults and children is "If" which is considered a classic. The poem is believed to have been inspired by Leander Starr Jameson, a British colonial politician. Kipling is also noted for his stories and poems about British soldiers in India.

Although Kipling published several short-story collections and poetry collections, his most famous novels were published in the 1890s and later. In 1892, Kipling married Caroline Balestier after which he moved to Vermont. It was while in America that he published the much-acclaimed "The Jungle Book" (1894). His novel "Kim" (1901) which is themed around an Irish orphan in India, is one of his most famous works. The sequel to 'The Jungle Book", "Second Jungle Book" (1895) is another celebrated work of his. Other noted works include "Captain Courageous" and "The Light that Failed".

Some of his famous poems are "The Ballad of East and West," "Danny Deever,""Tommy," and "The Road to Mandalay". "Just So Stories" is yet another well-loved series by Kipling. These stories were in fact written for his own children. The stories are meant to be read out aloud and were noted for their intriguing, playful language that would appeal to the children. His last work for children was "Puck of Pook's Hill" and its sequel, "Rewards and Fairies".

Did you know that Kipling also got a Nobel prize in literature in 1907? He was the first Englishman to receive it! In 1902, Kipling moved to Sussex and lived there until his death.He passed away in 1936 and was buried in Westminster Abbey.

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Can India experience heat waves beyond human survival?

India could experience heat waves beyond human survival limit, says World Bank report. And this impact would be felt in several ways. A look at the report in five brief points

1. HOTTEST ON RECORD: The World Bank report titled "Climate Investment Opportunities in India's Cooling Sector” said that the country is experiencing higher temperatures that arrive earlier and stay far longer. "In April 2022, India was plunged into the grip of a punishing early spring heat wave that brought the country to a standstill, with temperatures in the capital. New Delhi, topping 46 degrees Celsius. The month of March, which witnessed extraordinary spikes in temperatures, was the hottest ever recorded," said the report.

2. INTENSE HEAT WAVES: Predicting that heat waves situation in India could break the human survivability limit, the study noted that the recent heat wave supports what many climate scientists have long cautioned about with reference to rising temperatures across South Asia. It added that in August 2021, the Sixth Assessment Report of the Inter-governmental Panel on Climate Change (IPCC) warned that the Indian subcontinent would suffer more frequent and intense heat waves over the coming decade. The G20 Climate Risk Atlas also warned in 2021 that heat waves across India were likely to last 25 times longer by 2036-65 if carbon emissions remain high, as in the IPCC's worst-case emission scenario.

3. IMPACT ON ECONOMY: The report warned that rising heat across India can jeopardise economic productivity. "Up to 75 per cent of India's workforce, or 380 million people, depend on heat-exposed labor, at times working in potentially life-threatening temperatures....By 2030, India may account for 34 million of the projected 80 million global job losses from heat stress associated productivity decline," the report stated.

4. HEAT AND COLD CHAINS: Transporting food and pharmaceutical goods across India requires a system of cold chain refrigeration that works every step of the way. "A single temperature lapse in the journey can break the cold chain, spoiling fresh produce and weakening the potency of vaccines. With only 4 per cent of fresh produce in India covered by cold chain facilities, annual estimated food losses total USD 13 billion," it said. It also observed that the third largest producer of pharmaceuticals in the world, pre-COVID-19, India lost approximately 20 per cent of temperature-sensitive medical products and 25 per cent of vaccines due to broken cold chains, leading to losses of USD 313 million a year.

5. THE POOR ARE VULNERABLE: According to analysis presented in the India Cooling Action Plan (ICAP), only eight per cent of Indian households own air-conditioning units. "Indoor and electric fans can help to maintain thermal comfort, but these too are expensive to buy and inefficient. As a result, many poor and marginalised communities across India are more vulnerable to extreme heat, living in inadequately ventilated, hot and crowded homes without proper access to cooling," the report warned.

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What is the streak of light that shoots across the night sky called?

During Earth's journey around the Sun, there are times when its orbit crosses the orbit of a comet. It is when the planet moves through the comet debris trail that we witness meteor showers. The showers are named after the star or constellation which is close to where the meteors appear to radiate in the sky.

All of us may have seen streaks of light zip through the sky. We call them shooting stars and we also wish upon them. Well, what are these shooting stars? What are these streams of light? Consider the objects in space. These are lumps of rock or objects in space with sizes ranging from grains to small asteroids. A small piece of a comet or asteroid is called a meteoroid.

Meteoroid

These meteoroids can be considered as space rocks. They orbit the sun and when they enter Earth's atmosphere at a high speed, they burn because of frictional heating, causing the light. These rays of light are referred to as meteors.

When many meteors appear at once, we call it a meteor shower. During a meteor shower, a number of meteors can be seen radiating or originating from a point in the night sky.

But where do these meteoroids come from? How does Earth come across these? During Earth's journey around the Sun, there are times when its orbit crosses the orbit of a comet. It is when the planet moves through the comet debris trail that we witness meteor showers.

The meteor showers are named after the star or constellation which is close to where the meteors appear to radiate in the sky. The Perseids meteor shower is the most famous meteor shower and they peak around August 12 every year. Other notable meteor showers include the Leonids, Aquarids and Orionids and Taurids.

Now what happens when meteoroid survives the journey through the Earth's atmosphere and hits the ground? In that case, it becomes a meteorite.

Did you know that more than 50,000 meteorites have been found on Earth?

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Why medicinal plants are disappearing?

The history of medicine can be traced to prehistoric times. Among the earliest sources of medicines were herbs and various plant parts such as roots, flowers, etc. Across several regions of the world, medicinal plants are in use even today. In fact, research seems to suggest that the demand for these plants could be increasing with people wanting to embrace what are seen as "natural" remedies for ailments. But, how are the populations of medicinal plants faring? Come, let's find out.

According to the World Health Organisation (WHO), "between 65% and 80% of the populations of developing countries currently use medicinal plants as remedies". Apparently, among the few lakh plant species in the world today, "only 15% have been evaluated to determine their pharmacological potential" So, researchers are at work for "demonstrating the efficacy and importance of medicinal plants”. But the truth is that medicinal plants across the globe are facing extinction. An expert has said that "Earth is losing one potential medicinal plant every two years at an extinction rate that is hundred times faster than the natural process." The situation is no different in our country.

India is among the many countries with known use of medicinal plants. Our country is home to nearly 45,000 plant species, and at least 7,000 of them are medicinal aromatic plants. However, a recent piece of news from experts has become a cause for concern- as much as 10% of 900 major medicinal plant species found in the country fall under the “threatened” category, and "are facing the threat of extinction" What is causing this? The usual suspects - overexploitation, habitat destruction, urbanisation, etc. Another worrisome aspect is that "only 15 per cent of medicinal plants are cultivated while the remaining 85 per cent are collected by the industry from forest ecosystems and other natural habitats"

Conservation strategies such as “field studies, proper documentation, mitigation measures, enactment of special laws..." and recovery programmes are suggested to save the medicinal plants. This is vital because such plants play a crucial role not just in traditional practices but also in treating illnesses such as cancer. It is important to note that "cancer has a long history of depending on natural products for drugs" When medicinal plants disappear, along with them could disappear several chances to better human life.

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What is the Attari-Wagah retreat ceremony?

Do you know that booking for witnessing the Attari-Wagah retreat ceremony on India-Pakistan international border goes online?

If you have been following the news, you might have read that booking for the Attari-Wagah retreat ceremony can be made online. The online booking facility opens on Jan 1, 2023. What is this ceremony and when can it be watched? Let's find out.

A daily ceremony

The Attari-Wagah front is along the India-Pakistan international border in Punjab. The Attari-Wagah retreat ceremony the daily national flag lowering and retreat ceremony taking place along the border. It is open for viewing by visitors. Symbolising rivalry as well as brotherhood and cooperation between the two nations, the purpose of the Attari-Wagah retreat ceremony is to formally close the gate at the border for the night. The Border Security Force (BSF) that guards the frontier conducts the event. The Attari border front, also called the joint check post or JCP, is located about 26 km from Amritsar city, and hundreds of domestic visitors and foreign tourists watch the daily ceremony conducted in a synchronised manner by smartly-dressed BSF personnel along with their counterparts, the Pakistan Rangers, on their side known as Wagah.

The background

India and Pakistan have been traditionally hosting the evening flag-lowering ceremony on the Attari-Wagah border since 1959 and the event is attended by people from both the countries on their respective sides. The ceremony which starts between 3.30 and 4 every evening lasts 60-120 minutes. The synchronised ceremony involves lowering of the flags of the two countries, foot stomping manoeuvres of the troops and loud shouts with patriotic songs being played in the background on either side. The ceremony ends with a retreat after a brief handshake between the soldiers on both sides.

Web portal launched

At present, people reach the retreat area without prior booking and the BSF allows them to take seats in the gallery on producing an ID card. A web portal for people desiring to witness the joint retreat le ceremony in person - http://attari.bsf.gov.in - has been launched by the BSF.

Online booking can be made from January 1 onwards. The new facility is not chargeable and visitors will be initially allowed to book 12 persons in one group, 48 hours prior to the desired day, after furnishing photo ID card details online. The booking details will be sent through an SMS to the mobile number of the group leader or the first visitor listed.

The BSF has now numbered the seats in the viewing gallery so that it can hold about 20,000-25,000 visitors daily. The online booking will also allow the tourists to visit the BSF museum and border pillar No. 102 that is erected next to the Attari border gate.

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Why did UTC replace Greenwich Mean Time?

The Coordinated Universal Time (UTC) replaced the Greenwich Mean Time (GMT) as the world standard of time on January 1, 1972. For 50 years now, UTC has been the standard that is used to set all time zones around the globe.

Time is now an integral part of our lives every day. We wake up at a particular time, go to schools or offices at a set time, have our classes or meetings scheduled to take place at a given time... there is an endless list like this. Every aspect of life is now driven by time.

It wasn't always like this though. Until some centuries ago, there wasn't any need to measure time as accurately as we do today. There was basically daytime and nighttime in all the different places on Earth as the sun, moon, and the stars dictated time. But then, as the world grew smaller, and more connected with increasingly better technology, things changed.

Need for standardisation       

When rail and shipping lines started connecting the world, economic activity started requiring standardised timetables to coordinate activities. The idea for a universal time stemmed from this requirement and it was first conceived late in the 1800s.

A way to synchronise clocks across the world was first discussed in 1884 by the members who met at the International Meridian Conference in Washington D.C. While latitudes running east to west had always been measured from the equator, there was no such consensus around longitudes, or lines running north to south around our planet.

The prime meridian

It was at this conference that delegates from 25 countries chose to set the prime meridian or the zero point for longitude lines as that which passes through Greenwich, England. Time standards and time zones were built around this line, and hence came to be known as Greenwich Mean Time (GMT).

The advent of the atomic clocks after World War II enabled time to be measured with astounding accuracy in the second half of the 20th Century. These atomic clocks were able to show that Earth's rotational period actually varied ever so slightly on an everyday basis, owing to tectonic movements, melting ice sheets, and natural oscillations in our planet's movements.

Atomic time vs solar time

The idea behind Coordinated Universal Time or UTC (though it wasn't yet known by that name) was thus born in the 1960s. It was a way to accommodate the differences in timekeeping that arise between atomic time and solar time. While atomic time refers to the time derived from atomic clocks and is hence extremely accurate, solar time is the time arrived at using astronomical measurements of the rotation of the Earth on its axis relative to the sun, and is hence, variable. UTC is not only kept within an exact number of seconds of International Atomic Time (TAI), but is also kept within 0.9 second of solar time or astronomical time, denoted as UT1.

Result of a compromise

UTC started being used in the 1960s, but it wasn't until January 1, 1972 that it became the world standard for time, serving as the international basis of civil time as well as scientific time. This meant that UTC had effectively become the successor of GMT, providing for the basis of time worldwide. In case you are wondering how Coordinated Universal Time is abbreviated to UTC, then you will be pleased to learn that it is the result of a compromise. The acronym is a compromise between English and French speakers. While the English name for it, Coordinated Universal Time, would normally be abbreviated as CUT, the French name for it, Temps Universel Coordonne, would have been TUC. Instead of having it as CUT or TUC, a compromise was reached, and the acronym UTC was born.

Every time zone in the world is now given in terms of UTC. The Indian Standard Time (IST), for instance, is UTC+5:30. This means that IST is 5 hours and 30 minutes ahead of UTC. Irrespective of where you are on Earth, the time in that region can be given in terms of UTC.

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What is an anthology?

It is a collection of literary works published earlier and has a compiler or an editor who puts them together for republication, often with his/her introduction or foreword and comments. It is an invaluable source to discover a range of writers and a repertoire of their works.

Our English teacher, the other day mentioned that anthologies of any kind are an invaluable source to discover a range of writers and a repertoire of their works, often found to be more useful than a book containing a single work of a single author. For some strange reason, not many readers engage with them. They are of varied kinds such as anthology of poems, short stories, plays, novels, and essays anthology of one writer's works, anthology of theme-based writings, viz. love poems, protest plays anthology of period-based publications, that is, 18th-Century writings modern poetry, post-modem criticisms, and so on. She explained that an anthology is a collection of literary works published earlier and has a compiler or an editor who puts them together for republication, often with his/ her introduction/forward and comments.

The benefit of referring to an anthology is that in just one volume one could access many writers and their representative works. I had seen many anthologies on the shelves but never paid much attention to them. Having been inspired by what my teacher said, 1 wanted to glance through some when I stumbled upon an anthology of essays titled Greatest Essays, I was surprised to find about 50 essays in one book representing almost the same number of essayists from England and America. stretching from the 16th to 20th Centuries. I was surprised by the vast time span.

When I quickly ran my eyes over the table of contents. Some of the titles instantly appealed to me so I decided to read through at least a few. One such was Jonathan Swift's A Meditation upon a Broomstick. As I found the title unusual and ran only about one-and-a-half page. I read it first I was struck by Swifts comparison of man with a broomstick both look good and clean to start with but finally they are thrown out in the garbage or in the fire to be burnt. Man, in the end, seems to be of no more value than a broomstick.

Another title that interested me was Gifts by Ralph Waldo Emerson because we live at a time when the practice of giving and receiving gifts is an integral part of our nature Emerson has a strikingly different viewpoint on gifts a true gift is a portion of thyself: he considers. Therefore the poet brings his poet the shepherd, his lamb; the farmer, com; the miner, a gem: the sailor, coral and shells the painter, his picture. He dismisses rings and other jewels merely as apologies for gifts, but values flowers and fruits as fitting presents. Also, he devalues the practice of choosing gifts from readymade shops, because, to him, they are cold, detached, and impersonal in nature. His views apparently run contrary to the ones during his time and the current practices as well.

I have heard a lot about the Niagara Falls, so when I 1 came across an essay on it by Rupert Brooke, I was motivated to read it. His poetic description of the falls was very impressive, focusing on every minute detail such as the fast flow of water, mass of water, spray, waves, mist, color, foam, rainbow, and so on. He is upset that the beauty of the river is surrounded by every 'distraction, incongruity, and vulgarity, namely, the hotels, trams, stalls, booths, picture post-cards, and so on.

In less than an hour thus I was able to read three different writers on three different aspects with three different styles. The thought that dawned on me, then was that writers often deal with even commonplace things such as gifts broomstick, and waterfalls but what matters most to become a writer is the ability to generate thoughts based on ordinary things and express them imaginatively. I realised that writing need not necessarily be on some obscure profound ideas always. This is in fact motivated me to try my hand at writing sometime soon.

Importantly, anthologies lend themselves to random reading and one hardly needs to read cover to cover: one could pick and choose whatever interests and discard the rest, as I did. As anthologies often consist of renowned authors and their representative writings, the benefits readers reap are immense as they offer a wide variety of themes and styles.

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