Science & Mathematics
Show All Questions & Answers | Listing 'Science & Mathematics Q&A' |
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Is There Really a Chemistry of Love?
Chemistry > New Delhi > India
Where is the world's driest place?
Atacama Desert > Chile
What is the Scopes Trial?
Biology
What is Ikebana?
Spirituality > Hong Kong > China
Who invented the zipper? Why do most Zippers have the letters YKK on them?
Physics > Madrid > Sweden
What is a culture and sensitivity test?
Biology > New Delhi > India
Is there a place where the sun never sets?
What are ungulates?
Biology > Pretoria > South Africa
What is artificial gravity?
Physics > Bangalore > India
What is the Buffon's needle problem?
Mathematical Theory > Paris > France
How 3-D Glasses Work?
Physics > London > United Kingdom
What is ophidiophobia?
Biology > Delhi > India
What is a histogram in photography?
Inventions and Discoveries > New Delhi > India
When were parachutes first used?
Inventions and Discoveries > Paris > France
What is a keystone species?
Biology > New Delhi > India
What is broken symmetry?
Mathematical Theory > New Delhi > India
What is cold welding?
Physics > Lodi > USA
What is the Venus Project?
Astronomy > New Delhi > India
Why is mercury called the forgotten planet?
Astronomy > New Delhi > India
What is an ecosystem?
Biology > New Delhi > India
What is Composting?
Eco-friendly > New Delhi > India
What is the symbol for recycling?
Eco-friendly > New Delhi > India
What is green chemistry?
Chemistry > New Jersey > USA
What is a solar forest?
Eco-friendly > New Delhi > India
What is a blind hole?
Physics > New Delhi > India
What are ferns?
Biology > New Delhi > India
What is a unitasker?
Physics > New Delhi > India
What is a nuclear meltdown?
Chemistry > Fukushima > Japan
Why is a new clock timed 10:10?
Inventions and Discoveries > Delhi > India
What are dendrimers?
Chemistry > Delaware > USA
What are superpartners of particles?
Physics > Delhi > India
What is black gold?
Inventions and Discoveries > Pennsylvania > USA
What is dry ice?
Chemistry > New Delhi > India
What is kinship analysis?
Biology > New Delhi > India
Who invented the alarm clock?
Physics > Ottoman Empire > China
What’s the medicinal value of eel?
Biology > Beijing > China
How can we foretell Earthquake?
Geometry > Haicheng > China
Why are Chinese calendars based on animals?
Astrology > Shanghai > China
Where was the first zoo?
Biology > Beijing > China
Where did Shoes come from?
Inventions and Discoveries > Ayodha > India
How did the Cutty Sark get her name?
Transportation > Greenwich > United Kingdom
What is azimuth in astrology?
Astrology > Delhi > India
What is a wormhole?
Physics > Washington D.C. > USA
What is a fish plate in rail terminology and Greek culture?
Transportation > Kapurthala > India
What is a white hole?
Physics > Delhi > India
What is half life?
Chemistry > Delhi > India
What is black energy?
Physics > New Delhi > India
What is a time loop?
Geometry > Delhi > India
What is a buckyball?
Chemistry > Houston > USA
What is DRD4 gene?
Biology > Delhi > India
What is a light year and how long is it?
Physics > New Delhi > India
What years are leap years?
Physics > New Delhi > India
What day of the week will it be, a year from today?
Physics > New Delhi > India
Why do passengers board, alight an aircraft only from the left?
Physics > New Delhi > India
What is dual use technology?
Chemistry > New Delhi > India
Why is a 10-watt bulb known as a zero bulb?
Physics > New Delhi > India
What is Strepulsion Physics?
Physics > Hubli > India
What does the camel store in its hump?
Biology > Ajmer > India
What does stirring up a hornets nest mean?
Biology > New Delhi > India
What is uranium dating?
Chemistry > New Delhi > India
What is a Sociometer?
Physics > Cambridge > USA
What was the screech owl’s original name?
Biology > Andes > Peru
What is a bonobo?
Biology > Central African Republic
Why are celestial bodies spherical in shape?
Physics > New Delhi > India
Why does a bull react violently to the colour red?
Biology > Madrid > Spain
What is a time capsule?
Archaeology > Cairo > Egypt
What is Guano?
Eco-friendly > Lima > Peru
What is an artificial coral?
Biology > Port Blair > India
What is a cogwheel train?
Transportation > Jungfraujoch > Switzerland
Which plant has the biggest seed in the plant kingdom?
Biology > Islands of Praslin
What is a seed crystal?
Chemistry
What is cybertecture?
Architecture > Mumbai > India
If guerrillas are not a kind of ape, what are they?
Biology > Madrid > Spain
What are transparent soaps made of?
Chemistry > Jaipur > India
What is carnival glass?
Chemistry > Bahadurgarh > India
What is the anti-sense gene?
Biology
Why do people sweat when they are frightened?
Biology
How does calcium carbide ripen mangoes?
Biology > Delhi > India
What is gas flaring and why is it done?
Biology
What is wet wing in aeronautical terms?
Physics
How are the maximum and minimum temperatures of a place fixed?
Global Warming
What is a super galaxy?
Physics
What is a Jovian planet?
Physics
How does an ant know its way home with no clues in a desert?
Biology
What is zero net?
Eco-friendly > United Kingdom
What is the Saros Cycle?
Physics
What makes honey sweet?
Biology
How many flowers must a bee tap to make a pound of honey?
Biology
What is Pascal's wager?
Spirituality
What is eco-bling?
Eco-friendly > London > India
What does 'Bt' in Bt brinjal signify?
Biology > New Delhi > India
What is Philosopher’s wool?
Chemistry > Toronto > Canada
What is emission trading?
Global Warming
How do trick birthday candles work?
Chemistry > United Arab Emirates
What is scalar energy? What are scalar pendants?
Physics
What are quarks and gluons?
Physics
What is wingloading of an aircraft?
Physics
What is a heat budget?
Global Warming
Why is a sperm whale called so?
Biology
What is the atomic number of the element named after Einstein?
Chemistry > Berkeley > USA
What are anticyclones? How are they caused?
What is the Quantum God effect?
How does the hybrid engine work?
Why does an iron nail gain weight on rusting?
What substance do bones of birds contain?
Biology
Why do most birds jump on land instead of walking?
Biology
How is the temperature of a star measured?
How are ultra-violet rays blocked by the ozone layer?
Why does a falling object have no weight?
What does mirror image mean in biological terminology?
What imparts fragrance to flowers, fruits and spices?
Why does an iron work only when it is hot?
What is the chemical composition of ivory?
Why does the WWF logo feature a panda?
What is the dog house in the glass industry?
Biology
Why does the touch-me-not shrink when touched?
Why does the sky look blue from the earth and black from the moon?
Why does the black box remain intact in an air crash?
Why don’t we feel the tonnes of atmospheric pressure?
Why do food packages carry Kcal when they actually specify calories and not kilo-calories?
How are electric pylons placed across mountains to transmit electricity?
What is Universal Time Coordinated?
What is unbreakable glass made of, and is it really unbreakable?
Why is a swine flu mask called N95?
What does ‘tropicalized’ on a radio set signify?
If leaves get their colour from chlorophyll, what gives flowers their colour?
How do solar cells convert sunlight into electricity?
How is the height of water tides predicted?
Who discovered comets? How is the tail formed?
What is the full form of AK-47 and what does 47 refer to?
Why does snow look white but water is colorless?
How is the time difference between two countries calculated?
Why is liquid ammonia used in ice plants?
Why is calcium sulphate hemihydrates called Plaster of Paris?
What is the jump seat in the cockpit of an aircraft?
How does a mobile tracker work?
Why are large ships called liners?
Why don’t two-wheelers have a reverse gear?
Is rain water completely pure?
What is a chemical bond? How is it formed?
Why is sea water very high in salt content?
How is the mass of heavenly bodies measured?
Why does steel glow when it’s hot?
Why does the jasmine bloom only at night?
What is the Schwarzschild Radius?
How is the height of different places on earth measured from the sea level?
How did the abbreviation Dr for doctors originate, and why do engineers not use Er?
Why is the flame of a candle pointed?
What is the origin of Formula 1?
What is terminator gene technology?
Why is an atom spherical in shape?
What is smart antenna technology?
What is the role of H2O2 in the grey-hair puzzle?
What is pesticide peril in vegetables?
Of all metals, why does mercury have the lowest melting point?
What does mineral water contain?
Why doesn’t distilled water conduct electricity?
What is hydrocracking technology in petroleum refining?
Why are danger signals in red although the eye is most sensitive to yellow and green?
How is doldrum pressure formed?
How are sunrise and sunset determined for a place?
Why are viruses at the borderline of living and non-living things?
What is passive immunity?
Biology
If the density of gold is more than that of iron, why is gold softer than iron?
How was the first world map drawn?
What is the concept of a time machine? How does it work?
What is the difference between a computer screen and a gaming console?
Why do we blink when a hammer strikes metal?
Why does a magnet attract iron?
Why do we get cramps mainly in the calf muscles?
What dyes are used to ink tattoos?
Why are zodiac signs named after animals?
Biology
What is presbyopia? Which lens is used to correct it?
What is the cause of the earth’s magnetic field?
What is 'feeling stressurised'?
What are mammatus clouds and how are they formed?
Why is Blue-ray disc black on top?
Why is the empty space in a car measured in litres?
What gives sunrise and sunset an orange glow?
At what speed does electricity travel compared to light?
How do clouds move in the sky?
What is Push to Talk feature in mobile phones?
How is the distance between planets calculated?
What are heartwood and sapwood?
What’s special about the encoded cylinder?
Can there be light without heat?
Is it possible to conduct electricity without wires?
What is Loop Quantum Cosmology?
Is it possible to slow down or speed time up?
What is balata and where is it used?
Why does alternating current repel while direct current attract objects?
What is the unit of magnetic power?
Who came up with the concept of vacuum?
What is apomixis? How does it differ from amphimixis?
What does Roadrunner refer to?
What is the Sorlod Space System?
How is an atom’s mass measured?
What’s the bellows in the accordion?
How do anti-allergen drugs work?
Is it possible for all planets in our solar system to align in a straight line?
What is green fluorescent protein?
If noble gases are supposed to be inert and unreactive, how is krypton difluoride formed?
What are the speeds of diesel and electric locomotive engines?
What is Chargaff 's rule of base equivalence?
Biology
Why are acentric chromosomes genetically inactive?
What is Dissociative Identity Disorder?
Which is the world's hottest pepper?
Why does the moon appear upside down in the southern hemisphere?
What is Einstein's Rule of 72?
What is concentrated solar power plant?
Which is the first company to use barcode for sales?
What is the inert pair effect?
Does an electric field affect plant growth?
Which is the strongest industrial glue?
What is Enneagram Personality?
What is the alphabet of genetics?
What is the principle of a voltage stabilizer?
What is HAARP?
Global Warming > Gakona, Alaska > USA
Which compound is used in making bulletproof jackets?
What is the Latur pattern of study?
What is the difference between creepers and climbers?
What is the 'plum pudding' model of an atom?
Why is earthing necessary for electrical appliances?
What is laser photonics fabrication?
Why is a transformer core always cubical in shape?
What is Pareto's (80-20) rule of automation?
How do iridium spark plugs differ from regular ones?
What is the difference between soybean and moong bean sprouts?
Why do the Nilgiris appear blue from a distance?
How are points in a stock exchange calculated?
What is the Large Hadron Collider project?
What is the anti-greenhouse effect?
What is continuous partial attention?
What is immunohistochemis-try?
How does a cryogenic engine work?
Why do particles and anti-particles, when they come in contact, annihilate each other?
What is the international space station?
Why is it cooler at higher altitudes?
What is the white cloud formed when a plane breaks through the sound barrier?
Which country has the largest reserves of petroleum?
What is the stroboscopic effect?
What’s unique about the Rio Grande River?
Which is the world’s longest mobile phone?
Why are planets generally spherical?
Can cosmic rays generate electricity?
How are corrective lenses made?
How do sunglasses filter ultraviolet rays?
What are galactic superclusters?
Which is the most pointless gadget?
What is the Great Rift Valley?
What is the OLE Robotic Beetle?
What is the Blue Gene project?
Why is quartz used in watches?
How is buffalo mozzarella made?
How do you test the presence of methanol?
What is the Alexander Technique?
What is singularity in Physics?
What is a datum line in geography?
What’s geometric in geometric progression?
Why some creepy crawlies give you the creeps
What is the Time Preference Theory of Interest?
What is the source of allethrin?
What are warm holes in Physics?
How are international telephone dialling codes assigned to countries?
What is the uncertainty principle?
What's the world's first software?
What are magic bullets in pharmaceutical terms?
Why do Some People snore More than Others?
Why's the Sun Red during Sunrise and Sunset?
How can we use Water to run Cars?
Why is the Ball-point Pen Called So?
What is Pluto - a Star or a Comet?
Which Book Carries Its Own Light?
Which Galaxy is Visible to the Eye?
What were the Voyager Missions?
What is the Trail behind a Jet?
What makes the Egg Shell so strong?
Why's it hard for Ketchup to flow?
What is Artificial Intelligence?
Why Do Plants Bear Fruit?
Biology
Why do we See a Face on the Moon?
Why do not Birds on a wire get a shock?
Why are Some Plants Non-vegetarian?
How does a Nuclear Bomb differ from a Conventional Bomb?
When will the Oceans of the Earth Overflow?
What is the Software for Life?
Why Does Water stay Cool in 'Matkas'?
What is the secret behind feeling momentarily weightless in an elevator?
Why does February have 28 days, and July and August, 31 days?
How is a satellite phone different from a cellular phone?
How does a submarine stay under water?
Who invented the first thermos flask?
Why is hat-making called millinery?
Why is the word love used in tennis?
What is the origin of the Marathon race?
What causes different skin colours?
Why are some people left-handed?
Where do we get the word denim from?
How does a ballpoint pen work?
When did mail coaches operate?
How do astronauts ‘walk’ in space?
Which was the largest battleship ever built?
What was the first prime minister of the Commonwealth of Australia?
When did the first electric train appear?
What was the Boston Tea Party?
Who first reached the North and South Poles?
What part did Captain Bligh play in the history of ay in the Australia?
What popularized mountain climbing?
Who first flew the Atlantic non-stop?
What story does the Bayeux Tapestry tell?
What was motoring's Emancipation Day?
What was 'The Island of the Blessed'?
What was a 'lobster-tail pot'?
What causes the changes of sea-level?
Why doesn't the sun shine at night?
Who first reached the Poles by aircraft?
What are the three sacred treasures of Japan?
Where did the French first settle in America?
What happened to the men of the Mary Celeste?
What is a 'motte and bailey' castle?
Where did east meet west in the United States?
Where is 'the biggest pebble in the world'?
Which was the first public railway worked entirely by steam locomotive?
Why do we get electricity in our hair?
Which early settler's life was saved by an Indian girl?
Where and what are the galaxies?
Which order 'exceeds in majesty, honour and fame all Chivalrous Orders of the World?
Why don’t men have tails?
Biology
Where is tea-drinking a time-honoured ritual?
Why don’t we laugh when we tickle ourselves?
Which missile is nicknamed 'tin fish'?
Why do some people walk and talk in their sleep?
When was a sea captain treated like a god?
When was history made in twelve seconds?
Why is a blunderbuss so called?
What was the original home of motor racing?
With which Indian tribes did the American settlers come in contact?
What is the secret of Stonehenge?
What is the Spanish Riding School?
What was the secret of the Trojan horse?
What were the Pillars of Hercules?
Why are there waves on the sea?
What was the North-west Passage?
Why was Africa the center of the slave trade?
What is the legend of the Golden Fleece?
Who was Australia’s most famous explorer?
Who wrote the American national anthem?
Who gave the colony of Virginia its name?
How much salt is there in the sea?
What is the significance of the date 2 June 1953?
How many hairs grow on the human head?
Who is man exploring outer space?
How was Tutankhamen's tomb discovered?
What kinds of tools did early man use?
Who first traced the course of the Congo?
Who first sailed north of the Magnetic North Pole?
Who were the Green Mountain Boys?
Why was the 'penny-farthing' so called?
Is there life on other planets?
Who were the 'Noble Six Hundred'?
What was the legend of the flying horse?
What was the first products brought back from the New World?
Which invention has enabled people to swim freely underwater?
Which invention improved both cookery and education?
How was coffee brought to Brazil?
Why do people study cybernetics?
How many kinds of Springs are There?
Why are cancer and AIDS so feared?
How many people can fly in a space shuttle?
How many bones are there in the human body?
How do finger and toe nails grow?
Why do some trees lose their leaves in winter?
Which European language is unique?
What are the grand and Dogger Banks?
What are the main kinds of wood?
Why are most springs in valleys or low places?
Which Europeans first landed in Australia?
Why are Australians called 'Diggers'?
Why are archers lie on their backs to shoot an arrow?
Which European first sighted the Pacific Ocean?
Which European discovered the Victoria Falls?
How much blood can you give to others?
Why are fingers of different lengths helpful to us?
How the depth of ocean is measured?
Why are ice-skates made of steel?
How does the sea create new land?
Who are the tallest and shortest people?
How does the sea from a 'below hole'?
Which the deepest spot in the sea?
How does the sea affect climates?
Which pirate was also an explorer?
Who was Australia's most famous explorer?
Skylab and spacelab-what's the difference?
Tape or disc-what's best in video?
Who discovered the Mississippi River?
Who first explored central Australia?
Who discovered the source of the Nile?
Who first explored America's Far West?
Who explained the evolution of man?
Who rediscovered Cretan civilization?
Is cartilage the same as bone?
How fast does ice move on land?
Why do objects appear reversed in a mirror?
Who was the first woman to become a great scientist?
Who first sailed from Europe to India?
Why do laurel and holy trees have shiny waxy leaves?
Who discovered the St Lawrence River?
Who was the first explorer of the Sahara?
How does a mirage trick the eye?
I can drink something really hot, but if it spills on me, it would burn. Why?
What are Mineral Springs and Thermal Springs?
Which life-saving invention was inspired by the umbrella?
What are glaciers and icebergs?
Which kind of ball-rubber or steel-will bounce higher?
What are lines of Latitude and Longitude?
Is blood the only fluid circulating in the body?
Which is the world's biggest gorge?
Which is the world's chief food crop?
Which is the world's busiest port?
Who was the first Englishman to sail around the world?
Who was the first explorer known by name?
Which is the world's largest city?
Why is there usually a yew in many old churchyards?
Why is radioactivity dangerous?
What makes the holes in a piece of bread?
Why is the shuttle like a saucer?
What makes a stainless steel stainless?
What keeps you afloat in the water?
Do people with big ears hear better?
What is the difference between a fruit and a vegetable?
What is the difference between a star and a planet?
What is the difference between an Atom Bomb and Hydrogen Bomb?
What makes a pencil "bend" when it's put in water?
When does a car use overdrive?
Why is sleep known as the strange state of human body?
Where does television come from?
Cutting without knives and welding without torches-how's it done?
Do Whales and Dolphins see Blue?
What strange animals were discovered in Australia?
Biology
What is the difference between Artisan Well and Spring?
Can babies really be born in test-tubes?
How are Deaf-mutes taught to speak?
Why should we wash our hands before meals?
Who first traced the route of the Mississippi River?
What is the most dangerous part of spaceflight?
Who invented the Electrocardiograph?
What is the greatest distance you can see?
What is the world's remotest inhabited country?
What is the mystery of "falling stars"?
How did Rhode Island come into being?
How did New York get its name?
How did New England come into being?
How many kinds of clouds are there?
Where is the world's sunniest place?
Which is the most massive steel structure?
Where does candlewax go when a candle burns?
How did Australia's sheep industry begin?
How did a falling apple help in advance cosmology?
Where do you find cowrie shells?
Where does the body store its energy?
How did the invention of the telescope affect cosmology?
What did Captain Cook prove in the Southern Hemisphere?
Why Do We Have Wrinkly Fingers After Swimming?
Which the world's highest mountain?
Where would you look for a baobab tree?
Why do we turn white when frightened?
Why do we use fingertips to touch and feel things?
Where is the world's largest delta?
Why does an automobile have a carburetor?
How did the early mariners navigate?
Where was the world before it was made?
Where is your center of gravity?
When is a country not a country?
When the first rocks were formed?
When the first mountains were formed?
When water appeared on the Earth?
When were breakfast cereals first used?
Why is a holiday in the mountains generally good for the health?
When does a tree stop growing?
When does a forest become petrified?
Why is Prince Henry of Portugal called 'The Navigator'?
When did talking movies start?
How can you find the north pole star?
How big is the biggest diamond in the world?
Why doesn't our stomach get digested?
Where are the world's oldest rocks?
Where are the biggest ice blocks?
Why don't Birds on a wire get a shock?
Why don't trees grow on mountain tops?
How are the ages of rocks measured?