i know right they were so cool I wish I made it to MS.PENTSTONS class does allot of cool science experiments
hamza
5/8/2014 09:19:15 pm
I likeit when we did the lava lapes
Reply
alameen
5/11/2014 06:35:12 am
Science for Kids
Animal Facts
Check out these fun animal facts for kids and learn more about cats, dogs, insects, birds, whales, horses, sharks and much more. Children will love the cool animal related facts.
Animal facts
Space Facts
Be wowed by these fun space facts for kids and find out more about astronomy, the Moon, our Sun, the Milky Way galaxy, comets, asteroids and much more.
Space facts
Planet Facts
Read some amazing facts about the planets in our solar system. Learn about gas giants such as Jupiter and Saturn as well information about closer planets like Venus and Mars.
Planet facts
Technology Facts
Technology plays a major role in our everyday lives. Find interesting facts related to computers, cell phones, video games, television, money, robots and the Internet.
Technology facts
Human Body Facts
Check out these fun human body facts for kids and find out more about bones, skeletons, eyes, blood, muscles, the brain, heart and other amazing parts of the human body.
Human body facts
Earth Facts
Enjoy these fun planet Earth facts for kids and find out more about volcanoes, earthquakes, minerals, gas and more. Children will be fascinated by the range of Earth related facts.
Planet Earth facts
Chemistry Facts
Be amazed by these fun chemistry facts for kids while learning about atoms, gases, liquids, solids, chemicals and experiments. Children will love the weird chemistry related facts.
Chemistry facts for kids
Food Facts
Check out our fun food facts and learn more about what you eat. Read interesting info related to the fast food industry, nutrition, fruit, vegetables, popular foods and much more.
Food facts
Water Facts
Read our range of amazing water facts and discover why water is so important to life on Earth. Learn about ice, steam, rivers, drinking water, pollution, the water cycle and much more.
Water facts
Famous Scientist Facts
Learn about scientists who helped change the way we think about chemistry, biology, physics and our world in general. Read facts about Einstein, Darwin, Newton, Pasteur and more.
Famous scientist facts
Weather Facts
Enjoy these cool weather facts that will teach you more about exciting weather and climate related topics such as lightning, snow, record temperatures, tornadoes and tropical cyclones.
Weather facts
Sound Facts
Find out where sound comes from, what the speed of sound is, how sound relates to music, interesting properties of sound and much more with our range of fun sound facts.
Sound facts
Electricity Facts
Check out these shocking electricity facts that cover circuits, solar power generation, electric eels, wind power, positive and negative charges, currents, volts and everything in between.
Electricity facts
Physics Facts
Physics is an important science subject that helps us understand the world we live in. Enjoy learning about topics such as energy, force and magnets with our cool physics facts.
Physics facts for kids
Health Facts
Learn about important health topics that affect the lives of people around the world. Read facts about allergies, obesity, exercise, disease, cancer, medicine, clean water and more.
Health facts
Biology Facts
How much do you know about biology? Why not learn some new facts related to cells, DNA, cloning, natural selection, fungus, ecology, bacteria, viruses and other biology related topics.
Biology facts
Fire Facts
What does fire need in order to burn? What do we use fire for? How hot is a candle flame? Find out the answers to these questions and much more with our range of fire facts.
Fun Fire Facts for Kids
Nuclear Facts
Learn a range of interesting nuclear facts including information related to nuclear power, radioactive waste, nuclear weapons and much more.
Interesting Nuclear Facts & Information for Kids
Science Careers
Read about different types of scientists with our facts and information related to science careers. Find out what kind of jobs you can get after studying science at school and university.
Facts and information about different types of science jobs and careers
Forensic Science Facts
Find out how scientists use forensic science to help solve crime and other mysteries with our range of facts and information related to forensic science.
Forensic science facts
Plant Facts
Be amazed by the world of plants. Learn about the venus flytrap, trees, flowers, poison ivy, photosynthesis, shrubs and herbs as well as other interesting processes and strange species.
Plant facts
Light Facts
Illuminate the world around you by reading our amazing light facts with fun information about the visible spectrum, sunlight, ultraviolet light, infrared light and electromagnetic radiation.
Light facts
Funny Facts
Laugh at these funny science facts for kids. Children will love the cool, crazy, strange, funny, weird, odd and bizarre information as well as did you know facts and other amusing info.
Funny facts
Metal Facts
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alameen
5/11/2014 06:47:04 am
Rabbits and parrots can see behind themselves without even moving their heads!
Butterflies taste food by standing on top of it! Their taste receptors are in their feet unlike humans who have most on their tongue.
Most of the dust in your home is actually dead skin! Yuck!
Although the Stegosaurus dinosaur was over 9 metres long, its brain was only the size of a walnut.
Humans get a little taller in space because there is no gravity pulling down on them.
Because of the unusual shape of their legs, kangaroos and emus struggle to walk backwards.
A hippopotamus may seem huge but it can still run faster than a man.
Even if an analog clock is broken, at least it shows the correct time twice a day.
Sneezing with your eyes open is impossible.
The trickiest tongue twister in the English language is apparently "Sixth sick sheik’s sixth sheep’s sick". Give it a try and see for yourself.
Reply
firdous
5/11/2014 06:50:44 am
Magma is the hot liquid rock under the surface of the Earth, it is known as lava after it comes out of a volcano.
Natural gas doesn't have an odour, strong smells are added to it by humans so it can be detected when there are leaks.
Hawaii is moving towards Japan at the speed of 10cm a year. This is because they are on different tectonic plates.
The world's largest desert (outside of the polar regions) is the Sahara, it covers about one third of Africa!
Stretching out to an impressive length of 6696 kilometres (4160 miles) long, the Nile River is the longest river on earth.
The volcanic rock known as pumice is the only rock that can float in water.
Mt Everest is the highest mountain on earth, its peak reaches 8,848 metres (29029 feet) above sea level. Check out the highest mountains on each continent of the Earth.
On average the Atlantic Ocean is the saltiest of Earth’s major oceans.
Earthquakes that occur out at sea can cause huge tsunamis capable of reaching land and endangering people.
Metamorphic rocks are formed by extreme pressure and heat. Read more about metamorphic, igneous and sedimentary rocks, find information on rocks and minerals or check out our interesting fossil facts.
The Earth isn't perfectly round, it is slightly flattened at the north and south poles. Learn about the polar regions with our Antarctica facts and Arctic facts.
Scared of the Bermuda Triangle? Despite its reputation it is actually part of a commonly sailed shipping route.
Scientists have the dated the Earth as being between 4 and 5 billion years old!
The Amazon rainforest is the largest tropical rainforest on Earth. Enjoy more rainforest facts or learn about jungles.
Talc is the softest mineral found on Earth, reaching just 1 on Mohs scale of hardness, it is often used to make talcum powder.
The Great Barrier Reef in Australia is the largest living structure in the world.
The Niagara Falls are located on the border of the USA and Canada.
Rock found at the bottom of the Grand Canyon is around 2 billion years old.
Although earthquakes can be deadly, most are very small and not even felt by humans.
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firdous
5/11/2014 06:52:31 am
A waterfall is an area of a river or stream where the water flows over a steep vertical drop, often landing in a plunge pool below.
Erosion plays an important part in the formation of waterfalls. As a stream flows, it carries sediment that can erode the soft bed rock (limestone and sandstone) underneath. Eventually this cuts deep enough so that only harder rock, such as granite, remains. Waterfalls develop as the granite forms cliffs and ledges.
Waterfalls themselves also contribute to erosion. Stream velocity increases as it nears a waterfall, increasing the amount of erosion. The movement of water at the top of a waterfall can flatten rocks at the edge. The plunge pool at the base gets bigger as rushing water and sediment erodes it and the area behind the waterfall is worn away, creating cave-like shelters.
Other process that form waterfalls include earthquake, landslide, glacier, or volcanoes which can disrupt the land of a stream bed creating cliffs, cracks, faults and other changes in elevation.
The tallest waterfall in the world is Angel Falls in Venezuela where the water falls 979 m (3,212 ft). The fall is so long that at warmer times of the year the water turns into mist before it reaches the stream below.
The valley of Lauterbrunnen in Switzerland is a deep glacial formed valley that contains 72 waterfalls. The streams flowing from the mountains on either side, reach the rocky verge walls of the valley and cascade over. The most famous of the waterfalls is the Staubbach Falls less than 1 km from Lauterbrunnen village.
Waterfalls can be classified by type. There are many types of waterfalls and it is possible for a waterfall to fit more than one category.
Ledge (Classical, Curtain) waterfalls descend vertically over a cliff maintaining partial contact with the bedrock.
Block (Sheet) waterfalls descend from a wide stream or river, Niagara Falls, in the U.S. and Canada, is a block waterfall.
Cascade waterfalls descend over a series of rock steps, they are usually a relatively safe type of waterfall. Monkey Falls, in India is an example.
Cataract waterfalls are large, powerful and often dangerous. A very wide and wild cataract fall is the Iguazu River at the Brazil and Argentina border.
Chute waterfalls force a large amount of water through narrow vertical passages at a high pressure. For example, Three Chute Falls, Yosemite National Park, US.
Fan waterfalls are like the name suggests, as the water descends it spreads out horizontally. Virgin Falls is a fan waterfall in British Columbia, Canada.
Frozen waterfalls will freeze over for at least part of the year. Mountaineers often test their skills by climbing frozen waterfalls. E.g. The Fang, Vail, Colorado, US.
Horsetail waterfalls will maintain contact with the bedrock underneath them. The Reichenbach Falls, in Switzerland, is such a waterfall which is famous for being where fictional detective Sherlock Holmes allegedly fell to his death.
Multi-step (Tiered or Staircase) waterfalls are a series of waterfalls falling one after the other each with their own plunge pool. The falling lakes of Plitvice Lakes National Park, in Croatia, are an example of multi-step waterfalls.
Plunge waterfalls are fast moving with horizontal thrust over the edge causing the water to completely lose contact with the bedrock, e.g. Japan's Hannoki Falls.
Punchbowl waterfalls descend in a constricted form that spreads out into a wide pool at their base. Wailua Falls in Hawaii is an example of a punchbowl waterfall.
Segmented waterfalls form separate flows of water as they descend. The Nigretta Falls in Victoria, Australia, have separate streams that join back up in the pool.
Many waterfalls around the world are used to generate hydroelectric power.
Waterfalls can be grouped into 10 broad classes based on the average volume of water going over falls. Class 10 waterfalls include Niagara Falls, Khone Falls and Inga Falls. Victoria Falls (Class 9), Gullfoss (Class 8), Angel Falls (Class 7), Yosemite Falls (Class 6), Sutherland Falls (Class 5).
Waterfall
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alameen
5/11/2014 06:54:07 am
3/ Human tapeworms can grow up to 22.9m.
14/ The Earth is 4.56 billion years old…the same age as the Moon and the Sun.
15/ The dinosaurs became extinct before the Rockies or the Alps were formed.
16/ Female black widow spiders eat their males after mating.
17/ When a flea jumps, the rate of acceleration is 20 times that of the space shuttle during launch.
18/ ——-
19/ If our Sun were just inch in diameter, the nearest star would be 445 miles away.
20/ The Australian billygoat plum contains 100 times more vitamin C than an orange.
21/ Astronauts cannot belch – there is no gravity to separate liquid from gas in their stomachs.
22/ The air at the summit of Mount Everest, 29,029 feet is only a third as thick as the air at sea level.
23/ One million, million, million, million, millionth of a second after the Big Bang the Universe was the size of a …pea.
24/ DNA was first discovered in 1869 by Swiss Friedrich Mieschler.
25/ The molecular structure of DNA was first determined by Watson and Crick in 1953.
26/ The first synthetic human chromosome was constructed by US scientists in 1997.
27/ The thermometer was invented in 1607 by Galileo.
28/ Englishman Roger Bacon invented the magnifying glass in 1250.
29/ Alfred Nobel invented dynamite in 1866.
30/ Wilhelm Rontgen won the first Nobel Prize for physics for discovering X-rays in 1895.
31/ The tallest tree ever was an Australian eucalyptus – In 1872 it was measured at 435 feet tall.
32/ Christian Barnard performed the first heart transplant in 1967 – the patient lived for 18 days.
33/ The wingspan of a Boeing 747 is longer than the Wright brother’s first flight.
34/ An electric eel can produce a shock of up to 650 volts.
35/ ‘Wireless’ communications took a giant leap forward in 1962 with the launch of Telstar, the first satellite capable of relaying telephone and satellite TV signals.
36/ The earliest wine makers lived in Egypt around 2300 BC.
37/ The Ebola virus kills 4 out of every 5 humans it infects.
38/ In 5 billion years the Sun will run out of fuel and turn into a Red Giant.
39/ Giraffes often sleep for only 20 minutes in any 24 hours. They may sleep up to 2 hours (in spurts – not all at once), but this is rare. They never lie down.
40/ A pig’s orgasm lasts for 30 minutes.
41/ Without its lining of mucus your stomach would digest itself.
42/ Humans have 46 chromosomes, peas have 14 and crayfish have 200.
43/ There are 60,000 miles of blood vessels in the human body.
44/ An individual blood cell takes about 60 seconds to make a complete circuit of the body.
45/ Utopia ia a large, smooth lying area of Mars.
46/ On the day that Alexander Graham Bell was buried the entire US telephone system was shut down for 1 minute in tribute.
47/ The low frequency call of the humpback whale is the loudest noise made by a living creature.
48/ The call of the humpback whale is louder than Concorde and can be heard from 500 miles away.
49/ A quarter of the world’s plants are threatened with extinction by the year 2010.
50/ Each person sheds 40lbs of skin in his or her lifetime.
51/ At 15 inches the eyes of giant squids are the largest on the planet.
52/ The largest galexies contain a million, million stars.
53/ The Universe contains over 100 billion galaxies.
54/ Wounds infested with maggots heal quickly and without spread of gangrene or other infection.
55/ More germs are transferred shaking hands than kissing.
56/ The longest glacier in Antarctica, the Almbert glacier, is 250 miles long and 40 miles wide.
57/ The fastest speed a falling raindrop can hit you is 18mph.
58/ A healthy person has 6,000 million, million, million haemoglobin molecules.
59/ A salmon-rich, low cholesterol diet means that Inuits rarely suffer from heart disease.
60/ Inbreeding causes 3 out of every 10 Dalmation dogs to suffer from hearing disability.
61/ The world’s smallest winged insect, the Tanzanian parasitic wasp, is smaller than the eye of a housefly.
62/ If the Sun were the size of a beach ball then Jupiter would be the size of a golf ball and the Earth would be as small as a pea.
63/ It would take over an hour for a heavy object to sink 6.7 miles down to the deepest part of the ocean.
64/ There are more living organisms on the skin of each human than there are humans on the surface of the earth.
65/ The grey whale migrates 12,500 miles from the Artic to Mexico and back every year.
66/ Each rubber molecule is made of 65,000 individual atoms.
67/ Around a million, billion neutrinos from the Sun will pass through your body while you read this sentence.
68/…and now they are already past the Moon.
69/ Quasars emit more energy than 100 giant galaxies.
70/ Quasars are the most distant objects in the Universe.
71/ The saturn V rocket which carried man to the Moon develops power equivalent to fifty 747 jumbo jets.
72/ Koalas sleep an average of 22 hours a
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firdous
5/11/2014 06:57:19 am
There are a number of different definitions to describe a desert but they are typically areas that receive extremely low amounts of rain.
Deserts generally receive less than 40cm (16in) of rain a year.
Around one third of the Earth's surface is covered in deserts.
The original meaning of the word desert is 'an abandoned place'.
Many of the ice free regions of the Arctic and Antarctic are known as polar deserts.
Only around 20% of the deserts on Earth are covered in sand.
Areas covered in ice or snow can sometimes be called 'cold deserts', compared to 'hot deserts' in warmer areas.
The largest cold desert on Earth is Antarctica.
The largest hot desert on Earth is the Sahara.
The Sahara Desert is located in northern Africa, spanning 12 different countries.
The Arabian Desert in the Middle East is the second largest hot desert on Earth but is substantially smaller than the Sahara.
Other large deserts include the Gobi Desert in Asia, the Kalahari Desert in Africa, the Patagonian Desert in South America, the Great Victoria Desert in Australia, the Syrian Desert in the Middle East and the Great Basin Desert in North America.
The Gobi Desert is located in the north of China and the south of Mongolia. It is growing at a fast rate due to desertification, a process that turns fertile lands into desert areas. It is caused by humans cutting down forests, droughts, climate change and other environmental factors.
Located in South America, the Atacama Desert is the driest place in the world.
Hot deserts usually feature high temperatures in the daytime and cold temperatures at night.
Deserts have very low humidity.
Despite the extreme conditions, deserts are home to a range of well suited plant life including various shrubs and cacti. They are also home to animals such as lizards and coyote.
With lack of water, high daytime temperatures and sometimes freezing conditions at night, deserts can be extremely dangerous places for humans.
Shallow, salty lakes can form temporarily from time to time in deserts.
Deserts often contain large mineral deposits.
Deserts can be good locations to farm solar energy.
The video game Mario Kart 64 features a track called 'Kalimari Desert', a reference to the Kalahari Desert found in Southern Africa.
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alameen
5/12/2014 05:47:22 am
Facts About the Human Body
Can you feel the pulse in your wrist? For humans the normal pulse is 70 heartbeats per minute. Elephants have a slower pulse of 27 and for a canary it is 1000!
If all the blood vessels in your body were laid end to end, they would reach about 60,000 miles.
Abraham Lincoln probably had a medical condition called Marfans syndrome. Some of its symptoms are extremely long bones, curved spine, an arm span that is longer than the persons height, eye problems, heart problems and very little fat. It is a rare, inherited condition.
In one day your heart beats 100,000 times.
Half your body’s red blood cells are replaced every seven days.
By the time you are 70 you will have easily drunk over 12,000 gallons of water.
Coughing can cause air to move through your windpipe faster than the speed of sound – over a thousand feet per second!
Germs only cause disease, right? But a common bacterium, E. Coli, found in the intestine helps us digest green vegetables and beans (also making gases – pew!). These same bacteria also make vitamin K, which causes blood to clot. If we didn’t have these germs we would bleed to death whenever we got a small cut!
It takes more muscles to frown than it does to smile.
That dust on rugs and your furniture is not only dirt. It’s mostly made of dead skin cells. Everybody loses millions of skin cells every day which fall on the floor and get kicked up to land on all the surfaces in a room. You could say, “That’s me all over.”
It takes food seven seconds to go from the mouth to the stomach via the esophagus.
A human’s small intestine is 6 meters long.
The human body is 75% water.
Your blood takes a very long trip through your body. If you could stretch out all of a human’s blood vessels, they would be about 60,000 miles long. That’s enough to go around the world twice.
The strongest bone in your body is the femur (thighbone), and it’s hollow!
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The width of your armspan stretched out is the length of your whole body.
The average human dream lasts only 2 to 3 seconds.
The average American over fifty will have spent 5 years waiting in lines.
The farthest you can see with the naked eye is 2.4 million light years away! (140,000,000,000,000,000,000 miles.) That’s the distance to the giant Andromeda Galaxy. You can see it easily as a dim, large gray “cloud” almost directly overhead in a clear night sky.
The average person has at least seven dreams a night.
Your brain is move active and thinks more at night than during the day.
Your brain is 80% water.
85% of the population can curl their tongue into a tube.
Your tongue has 3,000 taste buds.
Your forearm (from inside of elbow to inside of wrist) is the same length as your foot.
A sneeze travels at over 100 miles per hour. Gesundheit!
Your thigh bone is stronger than concrete.
Your fingernails grow almost four times as fast as your toenails.
You blink your eyes over 10,000,000 a year.
There were about 300 bones in your body when you were born, but by the time you reach adulthood you only have 206.
The smallest bones in the human body are in your ear!
Your mouth uses 75 muscles when you speak!
When you wake up in the morning you are at taller than when you go to sleep, because you have let your spine straighten back out after all the bending, sitting, and moving you have done!
It is impossible to sneeze with your eyes open.
The average growth of hair is half an inch per month.
If hair remains uncut, it can grow up to 5 feet long.
Your tongue, eye, and jaw muscles are among the strongest muscles in your body.
Reply
firdous
5/13/2014 03:38:22 am
It might only take you a few minutes to finish a meal but it takes your body around 12 hours before it has completely digested the food.
The human body needs iron to help perform a number of important functions. Iron helps carry oxygen to parts of your body in the form of hemoglobin. Not having enough can lead to iron deficiency and symptoms such as weakness and fatigue.
Examples of iron rich foods include red meat, fish, chick peas, tofu, beans and lentils.
Red blood cells are created inside the marrow of your bones, they serve the important role of carrying blood around your body.
Antibiotics can be useful in fighting off bacteria but they are ineffective against viruses, this is because bacteria and virus are completely different, both having unique characteristics that need specialized treatments.
Viruses are usually around 100 times smaller than bacteria.
Around 7 million people die every year from food poisoning out of a total of around 70 million cases. Careful food preparation and storage is vital in order to avoid dangerous toxins, viruses and bacteria.
Food allergies are fairly common amongst adults and even more so among children. Around 2% of adults and 8% of children suffer from some type of food allergy where the immune system makes a mistake and thinks a certain food protein is dangerous and attacks it. Well known food allergies can include unwanted reactions to gluten, seafood and peanuts.
Access to clean drinking water can be taken for granted by people living in developed countries. In poorer parts of the world the quality water and pollution can give rise to dangerous diseases and bacteria such as cryptosporidium and e coli.
Obesity can increase the chances of developing diseases such as type 2 diabetes and heart disease.
In recent times there has been a drop in the amount of physical activity both adults and children do. Some of the reasons for this include new technologies that require less physical labor and increased time watching TV. It has been suggested that at least 60% of the world’s population doesn’t do enough exercise.
In 2007, heart disease was the leading cause of death in the USA.
In 2007 around 13% of all deaths worldwide were caused by cancer. The branch of medicine related to cancer study and treatment is known as oncology.
Infectious diseases such as AIDS, malaria and tuberculosis lead to around 26% of worldwide deaths in 2002.
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alameen
5/13/2014 03:45:57 am
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.
Albert Einstein was born on the 14th of March 1879 and died on the 18th of April 1955.
Born in Germany to a Jewish family, Einstein made many contributions to the field of theoretical physics.
Even when very young, Einstein showed great ability in both math’s and science. He was naturally curious and had a brilliant analytical mind.
Einstein worked in a patent office evaluating patents for electromagnetic devices not long after he graduated.
He produced perhaps one of the most famous equations ever: E = mc² (energy equals mass multiplied by the speed of light squared).
He is also well known for his theory of relativity. Special relativity being introduced in his 1905 paper “On the Electrodynamics of Moving Bodies” before Einstein developed the theory of general relativity between the years of 1907 and 1915.
Einstein won the 1921 Nobel Prize in Physics for his work on theoretical physics.
He worked on many other influential theories and projects including: the deflection of light by gravity, the quantum theory of atomic motion in solids, Brownian motion, an explanation for capillary action and much more.
Famous Albert Einstein quotes include: "Whether you can observe a thing or not depends on the theory which you use. It is the theory which decides what can be observed."
"If I were not a physicist, I would probably be a musician. I often think in music. I live my daydreams in music. I see my life in terms of music.... I do know that I get most joy in life out of my violin."
"Physical concepts are free creations of the human mind, and are not, however it may seem, uniquely determined by the external world."
"I am enough of an artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world."
Albert Einstein facts
Born in England, Isaac Newton was a highly influential physicist, astronomer, mathematician, philosopher, alchemist and theologian.
In 1687, Newton published Philosophae Naturalis Principia Mathematica, what is widely regarded to be one of the important books in the history of science. In it he describes universal gravitation and the three laws of motion, concepts that remained at the forefront of science for centuries after.
Newton’s law of universal gravitation describes the gravitational attraction between bodies with mass, the earth and moon for example.
Newton’s three laws of motion relate the forces acting on a body to its motion. The first is the law of inertia, it states that ‘every object in motion will stay in motion until acted upon by an outside force’. The second is commonly stated as ‘force equals mass times acceleration’, or F = ma. The third and final law is commonly known as ‘to every action there is an equal and opposite reaction’.
Other significant work by Newton includes the principles of conservation related to momentum and angular momentum, the refraction of light, an empirical law of cooling, the building of the first practical telescope and much more.