Topics from May 2016
- What are subtle fluids?
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- Why Apollo 17 is considered the last moon mission?
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- Why is Jean Baptiste de Lamarck a key figure in the history of evolution?
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- What are the evolutionary findings from the Cambrian Period?
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- Why was there an explosion of life during the Cambrian Period?
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- Why Neptune is considered the last planet to be discovered in our solar system?
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- What is the Cambrian period?
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- What are metazoans?
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- How did oxygen make its appearance in the atmosphere?
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- Why is the Precambrian Period extremely significant?
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- Which was the last major asteroid impact?
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- When was the last day the Morse code was used?
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- Why is the Vendian Period important?
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- When was the last day of the Vietnam War?
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- Why does World War II have many last days?
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- Why are fossils related to the Great Flood?
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- Why is the Proterozoic Era important?
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- Why are the last days of the German battleship Bismarck and the British battle cruiser HMS Hood connected?
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- What is the Archaean Period?
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- Which was the last day of World War I ?
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- Why can we never forget September 11th?
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- How are fossils interpreted?
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- Which are the last days of some famous bridges?
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- How are fossils formed?
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- Why is 9th November 1989 significant in the history of the Berlin Wall?
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- Why is paleontology important in the study of evolution?
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- Which was the last day of the Soviet Union?
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- Why have fossils given rise to many myths?
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- Which was the last day of the British Raj in India?
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- When did slavery end?
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- How did life originate on Earth?
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- How did the Earth come into existence?
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- What is an illustrated book?
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- When did slavery end?
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- What is typesetting?
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- Why do we say that the beginning of the Earth can be traced to the Hadean Period?
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- Why are the last days of Pompeii significant?
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- How did ‘Z’ become the last letter of the alphabet?
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- Why Western Australia is considered the last penal colony of Britain?
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- When did the last steam engine run?
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- Why was the Ford Model T a remarkable car?
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- Why was the Ford Model T a remarkable car?
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- Why will Tsar Nicholas II of Russia be remembered?
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- Why are there two high tides each day?
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- How is the height of mountains measured?
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- What are the flags and badges used by the Indian Navy?
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- Who was the last French monarch?
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- What are the roles of flags in politics?
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- The changing earth
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- What are the colours of railway flags?
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- What are sports flags?
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- Why did the Inca Empire fall?
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- Why and how do continents move?
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- Which is the oldest national flag still in use?
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- Where does the word flag come from?
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- What is meant by semaphore?
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- Why did the Aztec Empire decline?
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- Why is the fall of Constantinople significant?
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- What is a maritime flag?
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- When was the first film made?
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- Who are the persons involved in film making?
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- Are waves formed only near the sea shore?
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- Why is it not easy to name the last Roman Emperor?
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- How does camera film work?
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- How does a camera take picture?
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- Who invented the camera?
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- Why did gladiatorial games decline?
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- What are storm warning signals?
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- Why did the Tasmanian tiger become extinct?
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- What is deaf and dumb language?
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- What are the signs and symbols used in communication?
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- What do you know about passenger pigeons and Arabian ostriches?
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- Why did the dodo become extinct?
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- Where does sand come from? Has any thought been given to manufacturing it?
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- Why is lava flowing out of a volcano hot?
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- What is ball lightning?
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- Why does rain fall as drops and sheets?
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- How do we measure rainfall?
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- How is rain produced artificially?
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- Why are rainbows arc shaped?
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- What determines the size of rainbow? They obviously vary as shown by double rainbows.
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- How is sound produced in thunder?
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- Why are our fingers cooler than the rest of our body during winter?
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- What makes coconut oil freeze during winter?
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- Can anyone throw some light on Bermuda Triangle?
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- Why can’t ornaments be made with pure gold? What is the purity (in percentage) of 22 carat and 18 carat gold?
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- What is Pasteurization? Is it a process of sterilization?
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- Why do plastics become brittle when exposed to the Sun for a long period?
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- How does soap clean our clothes?
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- Do normal hand soaps actually kill germs? We are always encouraged to wash our hands after a visit to the toilet, but does this really make much difference?
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- Why is zeolite used in the purification of water?
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- Why does continued use of hard water result in the formation of a layer in utensils, water filters and boilers?
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- How does potassium cyanide cause sudden death?
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- What causes cooling when glucose is dissolved in water?
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- What is fire made of? What is its atomic structure? What causes things to burst into flames in the first place and why can't all materials be made to produce flame?
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- Why don’t identical twins have identical fingerprints?
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- How do turtles reproduce?
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- How do spiders manage without getting caught in their own web?
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- Why is the sting of a scorpion more painful than that of a snake sting? What are the chemicals in their poisons?
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- Can snakes hear? How do they respond to charmers’ mahudi?
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- How do penguins survive and breed regularly in Antarctica despite the chill?
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- Why do we get a bulge on the skin after a mosquito bite?
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- When killed, some mosquitoes bleed and some do not. Why?
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- How do the large marine mammals manage to sleep without drowning?
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- How do leeches suck our blood without causing any pain?
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- How do leeches manage to prevent blood from clotting?
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- Why the population of house files does suddenly increases in summer?
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- How does a firefly emit light?
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- Why does hair fall?
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- Why do we blink our eyes?
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- How do parrot’s talk?
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- With its small body mass, how does a monarch butterfly obtain enough energy to migrate 1,800 miles?
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- Mawsynram
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- How was Meghalaya formed?
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- Taj Mahal
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- How would we describe the geography of Uttar Pradesh?
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- Why is the history of Uttar Pradesh very inspiring
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- Why do tourists flock to Uttarakhand?
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- What are the geographical features of Uttarakhand?
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- What are the physical features of Tripura?
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- Valley of Flowers
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- Silk City
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- Why do we say that the history of Tamil Nadu goes back to ancient times?
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- Kanchenjunga
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- Why is Sikkim's history different from that of other states?
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- Why do snakes move in a zigzag manner?
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- Why does the light of firefly twinkle while that of glow-worm remains constant?
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- How do ants go in a line?
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- Why is Rajasthan called by this name?
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- How do ants manage to float on water?
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- Bhakra Dam
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- Why has Punjab seen many divisions in its history?
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- Golden Temple
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- Konark Dance Festival
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- Ants do not get hurt when they fall. Why?
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- Sand Art
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- What do we know about the geography of Odisha?
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- How do ants find their way to hidden sweets?
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- Why did the Kalinga war have a great impact on the history of Odisha?
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- In Harmony with the Environment
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- What do we know about the geography of Nagaland?
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- What are the traditional dances of Mizoram?
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- Why was the Mizo National Front formed?
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- Tourism in Meghalaya
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- Why do birds never fall off their perches when sleeping? Do they, in fact, sleep?
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- Longest Span Cantilever Bridge
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- Why do the eyes of some animals glow in the dark?
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- Why Meghalaya is called the land of clouds?
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- What were the first printed books like?
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- How do honey bees find their way back to their hives?
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- Why do runners run in anti-clockwise direction?
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- Why don’t we have hair on our palms?
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- What is the difference between hair and fur?
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- Why are some insects attracted towards light?
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- How do insects enter and live inside mangoes?
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- Eagles do not flap their wings often, yet fly for long. How?
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- Why do our arms move to and fro when we walk?
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- Why does our hair change its colour as we age?
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- How do birds navigate home after long journeys?
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- Do sheep swim? If so, how do they learn?
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- It is true that a red flag agitates a bull?
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- How come zoo animals like lions seem to lie around all day and yet stay fit? Also pet cats seem to lie around all day and yet stay fit?
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- Why and how do falling cats land on their four legs, always?
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- What imparts fragrance to flowers, fruits and species?
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- Fruits were supposed to attract animals. So what is the point of lemons tasting, so sour? Are there any animals which actually like the taste? Did we breed lemons from ones that were sweeter? Or do an
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- How do trees reduce air pollution?
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- Why do vegetables such as cucumber, snake gourd and bottle gourd sometimes taste bitter?
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- Beetroot contains a red colour pigment called betacyanin. Does it aid in the formation of blood cells in any way?
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- Normally the bark of trees turn brown but in some the stem remains green even after a few years. Why?
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- Why do some trees hold onto their leaves longer than others?
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- Why are some portions of sugarcane red?
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- Why does the touch-me-not plant shrink when touched?
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- Why are leaves of crotons coloured?
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- What makes Venus fly-trap plant insectivorous?
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- What is plant tissue culture?
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- How do plants survive during certain season’s inspite of shedding leaves?
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- How can we identify poisonous and non-poisonous mushroom?
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- Why do raw fruits such as mango ripen faster when kept in rice tins?
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- How does temperature affect ripening bananas?
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- How do fruits ripen?
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- Why does apple turn brown on being cut?
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- Why do drops of lemon create white spots on the floor?
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- Why does the lotus leaf not get wet?
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- Why do flowers have different colours?
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- Why does jasmine bloom only in the night?
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- Why and how does the sunflower always face the Sun?
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- Why does the Kurinji flower only once in 12 years?
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- What is terminator gene technology? How is it used to help our farmers?
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- What makes a cola foam up when you put a pretzel in it?
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- Why does boiled water lose taste?
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- Does cold water extinguish fire faster than hot water?
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- Why are soap bubbles and oil layers coloured?
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- How does carbon change into diamond?
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- What does 43 and 53 grade cement mean?
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- Could you ever see an eclipse of the Moon in daylight?
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- With what materials are Saturn's rings made of?
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- Why does the Moon look silvery at night?
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- Why do we always see only one side of the Moon?
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- Why do the Sun and Moon appear many times larger at the horizon?
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- Why should not the solar eclipse be viewed with naked eye?
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- How fast is the Earth moving through space?
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- “Why do voices differ from person to person?”
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- Can we communicate with creatures living in another planet?
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- If eclipses occur when the Sun, the Moon and the Earth lie on a straight line, why do they not occur on every new moon and full moon day?
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- What is a blue Moon?
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- Why only stars blink and not planets?
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- Why is it that the earliest sunrise and latest sunset do not coincide with the longest day of the year?
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- Does the Sun rotate?
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- Why are the orbits of the Sun’s planets arranged in a more-or-less flat plane?
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- Can we make contact with other species?
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- Will newspapers be printed at home?
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- What is the Drake Equation?
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- What is Ubik?
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