Topics from August 2020
- Why does moon has thousands of craters?
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- How do you explain total internal reflection?
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- Which are the two famous impact craters on earth?
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- Why is scandium alloys used to make bicycle frames?
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- Why is titanium industrially important?
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- What are the uses of manganese?
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- Why are the filaments of electric bulbs made of tungsten?
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- What are the major uses of cadmium?
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- Why is zinc used to protect steel?
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- Why was aluminium a luxury in the 19th century?
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- Why nickel is named so?
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- What is special about cobalt-60?
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- What are the uses of cobalt?
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- Why is there a rising demand for platinum these days?
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- What do we know about cobalt?
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- Why is iridium linked to the extinction of dinosaurs?
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- Why do we have catalytic converters in cars?
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- What do we know about the platinum group of metals?
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- Why is radium not widely used now?
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- What do we know about the discovery of radium?
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- Is strontium dangerous?
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- Why was strontium used in ancient India?
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- Why is calcium used to make glass?
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- Why is calcium important for our health?
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- Why are chalk, limestone and marble important?
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- Why is it said that calcium carbonate is found in rocks?
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- Does magnesium have a role in our health?
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- What is sacrificial protection?
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- Why was magnesium not discovered for a long time?
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- What are the uses of beryllium?
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- How was caesium discovered?
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- What do we know about francium?
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- Who discovered potassium?
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- Why is it difficult to store rubidium?
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- Why is sodium not used by itself?
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- What are the uses of lithium?
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- How useful is mercury?
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- Is mercury a common metal?
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- Why were alchemists interested in mercury?
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- Was mercury familiar to our ancestors?
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- Why should we handle mercury with care?
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- How useful is lead to us?
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- Why is lead no longer used in petrol?
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- What do we know about the ores of lead?
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- Was lead used to carry out punishments?
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- Why is silver considered as a rare metal?
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- Why is it believed that lead poisoning caused the fall of Rome?
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- Why is the use of lead controlled today?
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- What are the uses of tin and its alloys?
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- Which metal is known as canning metal?
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- Why do we smelt tin?
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- What causes tin plague?
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- Why did Napoleon Bonaparte’s 1812 campaign against Moscow fail?
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- Why is it said that tin gets plague?
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- Why was silver necessary for photography?
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- What are the many uses of silver?
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- How is Argentina associated with sliver?
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- Why do we use a copper silver alloy to make silver coins?
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- Why did wealthy people use silver cups for drinking water earlier?
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- How useful is gold?
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- What is special about 24 carats gold?
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- Why is gold associated with the Greek mathematician Archimedes?
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- What are the techniques of extracting gold?
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- What do we know about the ancient Egyptians’ relationship with gold?
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- Why was alchemy regarded important in the Middle Ages?
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- Where was gold currency introduced?
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- Why is it said that ancient Indian craftsmen were experts in working with iron?
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- What does the story of Midas suggest about the history of gold?
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- How important is iron for the modern construction industry?
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- Why does iron rust?
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- How do we make steel from iron?
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- Why were blacksmiths honoured in ancient times?
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- Why Iron is called the celestial stone?
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- What do we know about the usage of iron in ancient days?
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- How is iron extracted from iron ores?
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- Why is copper known as a bioelement?
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- Why do plants and animals need iron?
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- Why are copper compounds important to us?
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- What do we know about the Copper Revolution of Russia?
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- Was copper used to treat diseases?
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- What are the reasons for copper being widely used?
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- Why was the discovery of copper turning point in human history?
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- What are the two types of alloys?
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- How useful is alloy steel?
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- Why transition metals are called so?
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- What is an alloy?
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- What do we know about the different types of metals in the world?
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- Are metals smooth and even as they appear?
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- What were the significant developments regarding metals in the I8th century?
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- Why the Iron Age is called so?
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- Which were the first metals used by humans?
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- Why is a certain period in history known as the Bronze Age?
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- What is metallurgy?
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- Why metals are usually not found in Free State in nature?
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- How is a metal different from a non-metal?
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- What are metals?
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- What is beyond the Solar System?
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- What was the purpose of voyager 1 and voyager 2?
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- What’s it like to be an astronaut?
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- What is the purpose of spacesuit?
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- How astronauts live in space station?
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- What is the Space race?
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- What is the Moon?
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- How is the life on Earth?
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- Which planet is Earth’s evil twin?
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- What is Mercury known for?
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- What is the Sun?
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- What is the Milky Way?
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- What is the Solar System?
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- Which is the second largest planet in our solar system?
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- What is the future of the sun?
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- Are we alone in the Universe?
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- Can age be different on other planets?
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- Who landed a spacecraft on a comet?
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- What are space rocks made of?
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- What is Pluto known for?
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- Which are the ice giants?
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- What is Saturn known for?
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- How many moons does Jupiter have?
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- What is Jupiter?
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- What is Asteroid belt?
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- Why is Mars Exploration important?
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- What is the weather like on Mars?
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- How many moons do Mars have?
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- What is Mars?
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