Amazing Science Facts

AMAZING SCIENCE FACTS

Here are some interesting science facts that might baffle you. Go through these facts and increase your scientific knowledge.Choose the field of science you prefer and enjoy reading !!!

Chemistry

Chemistry is a fascinating science, full of unusual trivia! Here are some fun and interesting chemistry facts for you.

The only elements that are liquid at room temperature are bromine andmercury. However, you can melt gallium by holding a lump in the warmth of your hand.
Unlike many substances, water expands as it freezes. An ice cube takes up about 9% more volume than the water used to make it.
If you pour a handful of salt into a full glass of water, the water level will actually go down rather than overflowing the glass.
There is about 1/2 lb or 250 g of salt (NaCl) in the average adult human body.
A pure element can take many forms. For example, diamond and graphite both are forms of pure carbon.
The chemical name for water (H2O) is dihydrogen monoxide.
The only letter that doesn't appear on the periodic table is J.
Lightning strikes produce O3, which is ozone, and strengthen the ozone layer of the atmosphere.
The only two non-silvery metals are gold and copper.

Although oxygen gas is colorless, the liquid and solid forms of oxygen are blue.
The human body contains enough carbon to provide 'lead' (which is really graphite) for about 9,000 pencils.
The rarest naturally-occurring element in the earth's crust may be astatine. The entire crust appears to contain about 28 g of the element.
Hydrofluoric acid is so corrosive that it will dissolve glass. Although it is corrosive, hydrofluoric acidis considered to be a 'weak acid'.
One bucket full of water contains more atoms than there are bucketfuls of water in the Atlantic ocean.
Approximately 20% of the oxygen in the atmosphere was produced by the Amazon rainforest.
Helium balloons float because helium is lighter than air.
Bee stings are acidic while wasp stings are alkaline.
Hot peppers get their heat from a molecule called capsaicin. While the molecule acts as an irritant to mammals, including humans, birds lack the receptor responsible for the effect and are immune to the burning sensation from exposure.
Dry ice is the solid form of carbon dioxide, CO2.
Liquid air has a bluish tint, similar to water.
1. Research suggests that Children tend to grow faster in spring season as compared to any other time of the year !
2. Do you know that on average,men have larger noses than women !
3. Do you know that the enamel on the top surface of our tooth is the hardest part of the entire body !
4. Food is either cooled or warmed to a suitable temperature in the mouth !

6. Do you know that your Toe-prints are also unique , just like your finger prints !And imagine even your tongue print is unique!
7. You know ,you have no sense of smell when you're sleeping!
8. You know ,you can see your nose all the time but somehow your brain always ignores it!
9. We all blink after every few seconds, but do we know the purpose of blinking ! Blinking helps to wash tears over our eyeballs.That keeps them clean and moist.
10. An average person has over 1,460 dreams a year which is about 4 dreams every night!
11. On a clear night ,the human eye can see between 2000 to 3000 stars in the sky.
12. Do you know the similarity between human body and a banana? You will be amazed to know that 50% of human DNA is same as in banana!
13. The human body has enough iron in it to make 3 inches long nail.
14. A human heart pumps enough blood to fill 100 swimming pools in an average lifetime.In the same time it will beat almost three billion times
16. All babies are color blind when they are born ,so > they only see black & white.
17. People with dark color skin wrinkle later than the people having light color skins!
18. Guess how many muscles are working when you take a step! Well, about 200 muscles are used when we take a single step!
19. Weight of the eyeball ! The eyeball of a human weighs approximately 28 grams.
20. People generally read 25% slower from a computer screen compared to paper.
21. Do you know ,it is impossible to sneeze with your eyes open !
22. And do you know ,it is impossible to hum while your nose is plugged close !
23. Do you know 'rhinoplasty' is the name given to plastic surgery which involves nose !
24. Have you heard about Anosmia ,Dysosmia ,Hyperosmia? These all words are related to sense of smelling. Anosmia means inability to smell and Dysosmia is a condition where things don't smell like they should smell whereas Hyperosmia means strong sense of smelling !
25. Here is one more trivia about nose :the technical term for sense of smell is 'olfaction' !
26. Your brain is move active and thinks more at night than during the day.
27. Here is an amazing fact about the brain,it uses 20% of the total oxygen and blood in your body.
28. Do you know what is Uvula? It is the small piece of the small tissue dangling over the tongue.
29. Now this is cool ,the tongue is the strongest muscle in the human body.
30. And did you know that our fingers don't have any muscles ? The muscles which move our finger joints are located in the palm and up in the forearm.
31. An adult human body contains approximately 100 trillion cells!
32. Your tongue has 3,000 taste buds.
33. Do you know ,your brain is 80% water?
34. No pain in the brain! Do you know our brain does not feel pain! Even though brain processes pain signals,the brain itself actually does not feel pain.
35. Bones in an adult account for 14% of the body's total weight.
36. The tips of your fingers have enough strength to support the weight of your whole body
37. When you are born with 300 bones in their body, but as an adult you only have 206 bones. This happens because many of them join together to make a single bone.
38. The outsides of a bone are hard, they are light and soft inside. They are about 75% water.
39. The strongest bone in your body is the femur (thighbone), and it's hollow!
40. The smallest bone in the human body is the staples bone which is located in the ear,it is also called stirrup .
# Even though humans have studied the heavens for thousands of years, we still know very little about the universe. As we continue to explore, we learn more about the stars, planets, and galaxies. Some of the things we find out are amazing, and others are confusing. Here is a collection of amazing, interesting, and strange astronomy facts, based on our current knowledge of the cosmos.
We can only detect about 5% of the matter in the universe. The rest is made up of invisible matter (called dark matter) and a mysterious form of energy known as dark energy.
Neutron stars are the leftovers of the deaths of massive stars in supernova explosions. These stars are so dense a soup full of neutron star material would have more mass than the Moon. They are among the fast-spinning objects astronomers have studied, with spin rates up to 500 times per second!
The Sun's core releases the the equivalent of 100 billion nuclear bombs every second. All that energy works its way out through the various layers of the Sun, taking thousands of years to make the trip. The Sun's energy is emitted as heat and light.
Galileo Galilei is often incorrectly credited with the invention of the telescope. Historians now think the Dutch eyeglass maker Johannes Lippershey was its creator. Galileo was probably the first to use the device to study the heavens.
Black holes are so dense, and produce such intense gravity, that nothing — not even light —can escape their gravitational clutches. However, there are some unusual situations where a form of radation — called Hawking radiation — can slip away.
When supermassive black holes collide, gravitational waves are released. These waves were known to exist, and were finally detected in 2015.
If you somehow got too close to a black hole and were sucked in by its gravitational pull, it would pull harder on your feet than on your head. You would get stretched out — or spaghettified — by the intense pull.
Light from distant stars and galaxies takes so long to reach us that we are actually seeing these objects as they appeared in the past. As we look up at the sky, we are really looking back in time. For example, the Sun's light takes almost 8.5 minutes to travel to Earth, so we see the Sun as it looked 8.5 minutes ago. The nearest star to us, Proxima Centauri, is 4.2 light-years away, so it appears as it was 4.2 years ago. The nearest galaxy is 2.5 million light-years away, and it looks as it did when our australopithecus hominid ancestors walked the planet.The farther away something is, the further back in time it appears.
The Crab Nebula was produced by a supernova explosion that appeared in our skies in the year 1054 A.D. The Chinese and Arab astronomers at the time noted that the explosion was so bright that it was visible during the day, and it lit up the night sky for months. It was likely also observed by the Anasazi people of the U.S. southwest.
Shooting stars really aren't stars. They are usually just tiny dust particles falling through our atmosphere and they vaporize due to the heat of friction with the atmospheric gases. Earth sometimes passes through cometary orbits. As comets travel around the Sun, they leave behind dust trails. When Earth encounters that dust, we see an increase in meteors.
Even though Mercury is the closest planet to the Sun, temperatures there can reach -280 degrees F on its surface. How can this happen? Since Mercury has almost no atmosphere, there is nothing to trap heat near the surface. So, the dark side of Mercury (the side facing away from the Sun) gets very cold.
Venus is considerably hotter than Mercury, even though it is farther away from the Sun. The thickness of Venus’s atmosphere traps heat near the surface of the planet. Venus also spins very slowly on its axis.
A day on Venus is 243 Earth-days long, while Venus's year is only 224.7 days. Even weirder, Venus spins backwards on its axis compared to the other planets in the solar system.
Space isn't completely empty. We often hear about the vacuum of space, but it turns out that there are a few atoms of matter in each cubic meter of space. The space between galaxies, which was also once thought to be quite empty can often be filled with molecules of gas and dust.
The universe is filled with galaxies and the most distant ones are moving away from us at more than 90 percent of the speed of light.

Biology

Astronomy

Biology

Physics

Because of differences in gravity, a 200 pound person would only weigh 76 pounds on Mars.
Electric eels can stun both predators and prey with electric shocks of around 500 volts.
Energy from food is usually measured in joules or calories.
Light from the Earth takes just 1.255 seconds to reach the Moon.
Sound travels at a speed of around 767 miles per hour (1,230 kilometres per hour).
When traveling at 80 kilometres per hour (50 miles per hour), cars use around half of their fuel just to overcome wind resistance.
Water can work against gravity, moving up narrow tubes in a process called capillary action.
A magnifying glass uses the properties of a convex shaped lens to magnify an image, making it easier to see.
A scientist who studies physics is known as a physicist.
Uranus is the only planet in our solar system that rolls on its side like a barrel, while Venus is the only planet that spins in the opposite direction to Earth.
The fastest land animal in the world is the Cheetah, clocking a max speed of around 113 km per hour (70 mph).
1921 Nobel Prize in Physics was won by Albert Einstein for his work in the field of theoretical physics

Nuclear Science Facts

The word ‘nuclear’ is related to the nucleus of an atom, it is often used to describe the energy produced when a nucleus is split (fission) or joined with another (fusion).
The nucleus is positively charged and found at the central core of an atom.
Nuclear physics is the study of atomic nuclei and their interactions.
Nuclear power uses fission to create heat and electricity.
The US, France and Japan are the largest producers of nuclear power.
Nuclear power provides around 14% of the world’s electricity.
Nuclear power plants have a relatively good safety record but there is ongoing debate into the threat they pose, especially after widely publicized accidents at Chernobyl, Three Mile Island and Fukushima.
The radioactive waste produced by nuclear reactors can be difficult to dispose of safely.
The military often use nuclear reactors to power their submarines and aircraft carriers. Learn more about atomic energy with our nuclear power facts.
Nuclear weapons use the energy produced by fission or fusion to create destructive blasts.
While many nuclear weapons have been used in testing, only 2 have been used as part of warfare.
In August 1945, near the end of World War 2, the United States used atomic bombs on the Japanese cities of Hiroshima and Nagasaki, leading to the death of approximately 200000 people.
Enriched uranium is a crucial element of both nuclear weapons and nuclear power production.
The Sun creates energy through the nuclear fusion of hydrogen nuclei into helium.
It is believed that radiation exposure led to the death of Marie Curie in 1934. Learn more about her important research into radioactivity with our range of Marie Curie facts.

Miscellaneous Science Facts

1. There are 62,000 miles of blood vessels in the human body – laid end to end they would circle the earth 2.5 times
2. At over 2000 kilometers long, The Great Barrier Reef is the largest living structure on Earth.
3. The risk of being struck by a falling meteorite for a human is one occurrence every 9,300 years.
4. A thimbleful of a neutron star would weigh over 100 million tons.
5. A typical hurricane produces the energy equivalent of 8,000 one megaton bombs.
6. Blood sucking hookworms inhabit 700 million people worldwide
7. The highest speed ever achieved on a bicycle is 166.94 mph.
8. We can produce laser light a million times brighter than sunshine
9. 65% of those with autism are left handed
10. The combined length of the roots of a Finnish pine tree is over 30 miles
11. The oceans contain enough salt to cover all the continents to a depth of nearly 500 feet
12. The interstellar gas cloud Sagittarius B contains a billion, billion, billion liters of alcohol.
13. Polar Bears can run at 25 miles an hour and jump over 6 feet in the air
14. 60-65 million years ago dolphins and humans shared a common ancestor
15. Polar Bears are nearly undetectable by infrared cameras, due to their transparent fur
16. The average person accidentally eats 430 bugs each year of their life
17. A single rye plant can spread up to 400 miles of roots underground
18. The temperature on the surface of Mercury exceeds 430 degrees C during the day, and, at night, plummets to minus 180 degrees centigrade
19. The evaporation from a large oak or beech tree is from ten to twenty-five gallons in twenty-four hours
20. Butterflies taste with their hind feet, and their taste sensation works on touch – this allows them to determine whether a leaf is edible