Topics from June 2016
- Why do clothes look dark when immersed in water?
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- When I switch on my TV, audio is heard immediately but video comes only after some time. Why?
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- When watching TV and the face of the person being interviewed is obscured by large pixels of moving colour - to conceal their Identity - I can make out the elements of their face more clearly If I squ
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- Why is it that one is able to hear the ring tone and not any other noise when one dials a phone?
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- How does boiled rice act as gum?
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- As a result of a broken leg, I now have a stainless steel rod that runs down the centre of my femur. It is about a foot long and 1.5 centimetres in diameter. The fractured bone and rod are held togeth
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- Can vehicle tyres be filled with water instead of air?
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- Why are tubeless tyres not popular in India?
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- What is meant by ply rating of tyres?
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- What is the difference between radial and ordinary tyres?
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- Why is that, whatever they contain, dustbins always smell the same?
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- Why is a circle divided into 360 degrees?
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- What is non-linear editing? How is it different from linear editing?
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- What is tear gas? How does it work?
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- Why should we sit at a distance while watching the television?
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- How does a cordless phone work?
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- How does a cell phone work?
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- Why satellites are always launched from the east coast?
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- How is sound produced when the thumb and the middle finger are clicked?
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- How is sound caused by cracking of knuckles?
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- Why is TFM mentioned on soap wrappers?
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- What does the term “vacuum evaporated” printed on iodized salt packets mean?
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- How does a train stop when we pull the chain?
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- What is “vegetarian egg”? How is it different from an ordinary egg?
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- Why are most eggs egg-shaped?
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- What is food poisoning?
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- How do blotting paper and tissue paper differ from ordinary paper?
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- How does a blotting paper absorb ink?
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- Why do two-wheelers not use diesel?
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- Can LPG be used to run petrol vehicles without any harm to the engine?
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- What is bond paper? How is it different from other types of paper?
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- Does eating gelatine really make your nails stronger?
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- Why are not cutting nails and hairs, painful?
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- Why are the rear wheels of tractors much larger than the front wheels?
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- What will happen if unleaded petrol is used in two wheelers?
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- How is a four-stroke engine of a two-wheeler more eco-friendly than a two-stroke engine?
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- Why are engines fitted at the rear end in some vehicles?
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- What are the constituents of mosquito mats? Are they not harmful to human?
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- Why is it difficult to shut wooden doors in winter?
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- Why is it that we are able to drink very hot liquid but the same burns our skin if poured on the body?
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- No matter what colour of drink one consumes, when the liquid finally leaves the body the colour has gone. What happens to it?
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- How do crispy rice breakfast cereals make snap, crackle and pop sounds when you pour milk on them?
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- How do certain beverages give a feeling of freshness?
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- What is meant by empty calories got by drinking alcoholic beverages?
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- Why is red meat red and white meat white? What is the difference between the various animals that makes their flesh differently coloured?
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- What constitutes bullet-proof glass?
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- How does noise shatter glass?
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- How does a shaving brush help generate more lather from soap or shaving cream?
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- What makes honey resistant to spoilage, even at room temperature?
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- How to verify purity of honey?
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- How is it that when a small piece of paper finds it difficult fly continuously in the air, kite made out of it is able to fly easily?
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- How do we dry clean our clothes?
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- Why do we heat an iron box before pressing our clothes?
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- Why are some people left-handed? Is this type of preference restricted to humans alone?
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- Why are aero-planes not affected by lightnings?
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- Why so we experience a blinding feeling when we enter a dark room after standing in sunlight?
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- How are mummies made?
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- How does mehndhi impart colour?
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- How does a stick help people walk on ropes?
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- Why do we tap our feet in time to music?
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- How does a pencil eraser work?
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- What happens to rice when it is boiled and wheat when baked? Why is cooked food more digestible?
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- Why can’t we fry food with water instead of oil?
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- Why does a small piece of wood catch fire quickly rather than a large log of wood?
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- Why does a small piece of wood catch fire quickly rather than a large log of wood?
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- Why does the inner side of a candle flame appear dark?
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- How does churning help in separating butter from curd?
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- How does a lie detector work?
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- What is a speech synthesizer? How does it work?
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- What makes the poori swell?
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- Why do flags flutter?
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- Why do flames go upwards?
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- What is the difference between corn, sweet corn and popping corn? What makes sweet corn sweet and popping corn pop?
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- Why does a layer form on top of hot beverages such as milk and tea?
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- How does one decipher bar codes?
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- What is the black box (in planes) made off? Normally what does it do?
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- What is the difference between an air cooler and an air conditioner?
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- Where does the water for frost formation in the fridge come from?
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- What are refrigerants? How do they chill the contents inside a fridge?
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- Why do we see stars when we receive a blow on the head?
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