world Fact

World Facts

Astronomy Facts

The Sun is growing: In 5 billion years it will be 250 times bigger and close enough to swallow up the Earth. 

Proxima Centauri is the nearest star to us after the Sun. 

The star Epsilon Aurigae dims every 27 years due to a mysterious dark object eclipsing it periodically. 

The 'Great Red Spot' - a storm on Jupiter that has been going on for 300 years - is so big that dozens of Earths would fit into it.

A supermassive blackhole is believed to be present in the centre of nearly every galaxy, including our own Milky Way. 

On Mercury during the day, the Sun rises, stops, about-turns and eventually sets where it rose. 

Everything moves: Planets move within the Solar System, which moves within Milky Way 

Galaxy, which moves within The Local Group of Galaxies, which moves towardsVirgo Cluster. 

Venus and Uranus are the only planets that rotate clockwise (retrograde rotation.) 

All 27 of Uranus moons are named after William Shakespeare and Alexander Pope characters. 

With 63 moons, Jupiter has the largest number of moons. 

Jupiter, Saturn, Uranus and Neptune are made up of just gas with no solid surface to land on.

The temperature on Mercury varies so extremely that it will rise up to 430C during the day and drop as low as -140C at night. 

The largest known star Canis Majoris is so big that if our Sun were a ball 117cm (46in) wide, Canis Majoris would be 2.25 kilometers (1.3 miles) wide. 

Despite being closest to the sun, Mercury is not the hottest planet. The hottest planet isVenus (at 462 Celsius).

The Pistol Star is the most luminous star known - 10 million times the power of the Sun and as big as the size of Earth's entire orbit around the Sun. 

Mars is red because its soil is very rusty (iron oxide.) 

Crux is the smallest of modern constellations, with only 4 bright stars. 

The largest of modern constellations is Hydra. 

Earth is the only planet not named after a Roman or Greek god.

Saturn's moon Titan has hundreds of times more oil and natural gas than all the known reserves on Earth. 

Interstellar space is not complete vacuum: there are a few hydrogen atoms per cubic centimeter. 

If a pinhead-size piece of the Sun were placed on Earth, one would have to stand as far as 145 kilometers (90 miles) away to be safe. 

The star "Lucy" in constellation Centaurus is actually a huge cosmic diamond of 10 billion trillion trillion carats.

A neutron star has such density that a teaspoonful of its matter would weigh more than all the people on Earth.

Even though it is closest to the Sun, Mercury has ice in its craters. 

Due to its size, Pluto's moon Charon is also considered to be a double dwarf planet (two planets orbiting each other), rather than a moon orbiting its planet.

Jupiter is so big that twice the mass of the rest of our Solar System's planets combined would still not be enough to equal its mass.

Made up of billions of pieces of ice, the average thickness of each of Saturn's seven giant rings only ranges from about 200 to 3000 meters.

The deepest surface point on Mars is Hellas, about 3 km deep.

Pluto is no longer considered a planet. It is now known as a "Dwarf Planet". 

The full Moon always rises at sunset and sets at sunrise.


About 1000 Earths would fit inside Jupiter - and the Sun could hold about 1000 Jupiters. 

Voyager 1 spacecraft is the farthest human-made object in the universe.

The planet Saturn has a density lower than water. So, if placed in water it would float. 

The speed of light - 299 million meters a second - would still take about 26 billion years to reach one end of the visible universe to the other. 

On Uranus, each pole gets around 42 years of continuous sunlight, followed by 42 years of darkness. 

 The sky is blue because when sunlight collides with our atmosphere, colours of the shortest wavelengths (violet and blue) are scattered - and our eyes are more sensitive to see blue. 

One of Jupiter's moons is believed to grow and shrink because of the water beneath its frozen surface. 

A dwarf star is so dense that it would take 8 men to lift a teaspoon full of its matter. 

The number of neuron cells in our brain is more than the total number of stars in our galaxy.

The planet Venus has the longest day.

The Earth is the densest planet in the solar system.

The Moon orbits the Earth every 27.32 days

Every second, the Sun pumps more than a million tons of material into the space through the solar wind (electrically charged particles.)

The planet Venus does not tilt as it goes around the Sun, so consequently, it has no seasons.

Since Neptune's discovery in 1846, it has made just about three-quarters of one revolution around the Sun.

The pressure at the centre of the Earth is 27,000 tons per square inch.

Uranus is tipped on its side so that one pole is pointed at the Sun, so its poles are warmer than its equator.

The smallest planet in our solar system is Pluto (now called 'dwarf planet' and not a true planet.)

A cosmic year is the amount of time it takes the Sun to revolve around the center of theMilky Way, about 225 million years.

A day on the planet Mercury is twice as long as its year. Mercury rotates very slowly but revolves around the Sun in slightly less than 88 days.


The star Alpha Herculis is so big that 25 of our entire solar system would have to be placed end to end to equal the star's diameter. 

The star Sirius B is so dense, a handful of it weighs about 454,000 kgs (1 million pounds.)

The Sun contains over 99.8 percent of the total material (mass) in our solar system, while Jupiter contains most of the rest.

The Sun is 330,330 times larger than Earth.

The Sun is about 149 million kms (93 million miles) from Earth, yet it's 270,000 times closer than the next nearest star, which is 4.3 light years away.

A neutron star is the strongest magnet in the universe.

A new star is born in our galaxy every 18 days.

If a pulsar's (small star made up of densely packed neutrons) piece the size of a small coin landed on Earth, it would weigh approximately 100 million tons.

A day on Mercury, from sunrise to sunset, lasts about six Earth months. 

A space vehicle must move at a rate of at least 27.35km (17 miles) per second to escapeEarth's gravity.

The Sun loses 360 million tonnes of material each day.

The Earth-Moon size ratio is the largest in our solar system, excepting Pluto-Charon.

The Sun travels at a speed of 250km (155 miles) per second, but it still takes 230 million years for it to complete a single revolution of the galaxy.

Olympus Mons on Mars is the largest volcano in our solar system, almost three times taller than Mount Everest on Earth.

Jupiter's core is non-metal, but due to the immense pressure inside Jupiter, the core has become a metal. 

 This metal is liquid metallic hydrogen.

The cosmos contains approximately 50,000,000,000 galaxies.

Sound travels about 4 times faster in water than in air.

A large sunspot can last for about a week.

The Earth orbits the sun at an average speed of 107,220 kms per hour.

There is a high and low tide because of our moon and the Sun.


 The moon is one million times drier than the Gobi Desert. 

The moon is 27% the size of the Earth.

The Earth weighs 6.6 sextillion tons, or 5.97 x 1024 kg.

Sunlight takes about 8 minutes & 20 seconds to reach the Earth at 186,282 miles/sec (299,792 Km/sec).

An Astronaut can be up to 2 inches taller returning from space. The cartilage disks in the spine expand in the absence of gravity.

MATHEMATICAL FACTS

The implicit curve equation (x²+y²-1)³-x²y³=0 produces the heart shape. 

The term Googol (10¹⁰⁰, ie, 10 followed by 100 zeros) was invented by a 9-year old boy Milton Sirotta. 

The Reuleaux Triangle is a shape of constant width other than a circle.  

           17 689 = 1332
         177 6889 = 13332 
       1777 68889 = 133332
     17777 688889 = 1333332
   177777 6888889 = 13333332
                 ...

The Seven Unsolved Millennium Prize Math Problems are:
1. P versus NP problem
2. Hodge Conjecture
3. Poincaré conjecture (solved in 2002)
4. Riemann Hypothesis
5. Yang-Mills Existence and Mass Gap
6. Navier-Stokes Existence and Smoothness
7. Birch and Swinnerton-Dyer Conjecture Submitted by: Ravi - Mississauga, Ontario, Canada

The Fibonacci sequence are numbers where each following number is the sum of the previous two:

0 1 1 2 3 5 8 13 21 34 55 89 ... 

A Palindrome Number is a number that reads the same backwards and forward, e.g.13431. 

A dollar can be made into small change in 293 ways.

You can remember the value of Pi (3.1415926) by counting each word's letters in "May I have a large container of coffee?"

Multiplication and succession:

       1 × 8 + 1 = 9
      12 × 8 + 2 = 98
     123 × 8 + 3 = 987
            ...

and so on.  

142857 is a cyclic number, i.e., its digits are rotated around when multiplied by any number from 1 to 6. Like this:

     142857 × 1 =  142857 
     142857 × 5 = 7 14285
     142857 × 4 = 57 1428
     142857 × 6 = 857 142
     142857 × 2 = 2857 14
     142857 × 3 = 42857 1

1089 multiplied by 9 gives an exact reverse: 9801.  
  
  
    
  

From 0 to 1000, the letter "A" only appears in 1000 ("one thousand"). 

2 is called the "oddest" Even-Prime number. 2 is a unique Even-Prime because while all Evens are divisible by 2, any number apart from 2 that is divisible by 2, is not a Prime.

1 × 9 + 2 = 11 12 × 9 + 3 = 111 123 × 9 + 4 = 1111 ... ... and so on.  

40 when written "forty" is the only number with letters in alphabetical order, while "one" is the only one with letters in reverse order. 

1 googol = 10¹⁰⁰ 1 googolplex = 10^googol = 10¹⁰¹⁰⁰ (The "Google" website name was inspired by "Googol".) 

111 111 111 × 111 111 111 = 12345678 9 87654321 

Pi (3.14159...) is a number that cannot be written as a fraction. States

The opposite sides of a dice cube always add up toseven. 

21978 when multiplied by 4 is the same number with digits in reverse order:

     21978 × 4 = 87912

If you add up the numbers 1-100 consecutively (1+2+3+4+5...) the total is 5050.

The billionth digit of Pi is 9.

1 and 2 are the only numbers where they are the values of the numbers of factors they have.

2 and 5 are the only prime numbers that end in 2 or 5.

The largest known prime number (so far) is 12,978,189 digits long. Submitted by: Mathguy

The digits to the right of the Pi's (3.141...) decimal point can keep going forever, and there is no pattern to these digits at all. 

BIOLOGICAL FACTS

The synthetic biological cell "Synthia" is the first living organism whose parent is not a living thing but a computer. 

Humans share 50% of DNA with a banana.  

The femur (thigh bone) is the largest and longest bone in the human body. 

The jaw is the strongest muscle in the human body in terms of exerting force. 

An adult Mayfly's life is as short as a few minutes, but its body hatches for about a year. 

The nails on long fingers grow faster than short fingers; and fingernails grow four times faster than toenails. 

There's about 1.8m (6 ft) long DNA inside every cell nucleus in our body, and an average adult body contains around 50 trillion (million million) cells. 

Some migratory birds have a "magnetic compass" in their body (a sense called Magnetoreception) to help them navigate using Earth's magnetic field. 

The catfish father keeps the eggs in his mouth until they are ready to be hatched. 

The tiny Water Bear (Tardigrade) can survive environments extreme enough to kill any other animal - with temperatures as low as -273°C close to Absolute Zero to as high as 151°C.

Corneas are the only tissues that don't require blood. 

The Giant Kelp algea (Macrocystis pyrifera) is the fastest growing organism on earth and can grow at a rate of 70cm (two feet) a day.Submitted by: Edmer Aguilar

Dolphins only "sleep" half awake - keeping one eye open while consciously breathing and floating on surface. 

The length between your elbow and hand (forearm) equals the length of your foot. 

If you fully stretch your arms out, the fingertip to fingertip length is almost exactly your body height. 

The lightest organ in the human body is the lung.

An ostrich egg is also the largest existing single cell. 

A kind of jellyfish (Turritopsis nutricula) upon reaching adulthood can transform itself back to childhood by converting its cells. It may repeat this to live forever.

To avoid predators, a mother Slow Loris licks its offspring with poison before sending them off to search for food. 

The fungus Cordyceps is able to "mind-control" other insects like ants to climb plants and attach there to become its food.

The largest frog in the world is The Goliath Frog of Gabonin West Africa and can grow as big as 33cm long and up to 3kg heavy. 

When the queen of a clownfish school dies, a male clownfish changes its gender to become female and takes her place. Submitted by: Susie - Port Saint Lucie, Florida, United States.

The life of an eyelash is about 5 months. 

The Horseshoe crab has blue blood.

The nerves in our body are most concentrated in ourfingertips. 

Dolphins cannot stay long underwater because they breathe through their blowholes above water. 

The most poisonous snake in the world isBelcher's Sea Snake or the Faint-banded Sea Snake (Hydrophis belcheri). 

Turtles and sea cucumbers can breathe through their butts. Submitted by: BJ Caronan

The cow has four stomachs, as most ruminant mammals do. 

The little Alaskan Wood Frog is capable of reviving itself back to normal life after staying completely frozen for months, during which its heart, brain and other organs stop functioning. 

Some species of earthworm can have as many as 10 hearts. Submitted by: Jhun Mark Soriano

There are more species of fish in Amazon river than in the entire Atlantic Ocean (Over 2,000). 

Chameleons often have tongues longer than their bodies. 

'A worm is both male and female at the same time (a hermaphrodite.) 

Dolphins and whales are mammals that don't drink water. 

Sheeps, goats and the octopus have almostrectangular-oval pupils in their eyes. Submitted by: Abby

Giraffes could pass out with blood filling their brain when they lower their neck, so they have a sponge-like organ in the head which slowly gathers and releases blood. 

The Golden "Poison Dart" frog in South America is the most poisonous vertebrate in the world. 

The acceleration rate of a flea's jump is 20 times that of a space shuttle during launch.

The Brazilian "railroad worm" has a head that glows with a red light, and has a green light on its side. 

A woodpecker can peck with a force as high as 1,200 g's with each impact - equivalent to a human striking head against a wall at a speed of 25km (16mi) an hour each time.

A large woodpecker can peck as fast as 20 times a second and up to 12,000 times a day. 

The world's smallest flowering plant is theWolffia, whose one full bouquet of flowers can fit on the head of a push-pin. 

Rafflesia Arnoldii is the largest flower in world, and can grow as big as an umbrella. 

Avocados have the highest fibre and calories of any fruit. 

Pineapple is actually a giant berry. 

Rats can swim for about 1km (0.5mi) without rest, and can tread water for three straight days.  

Our eyes can distinguish as many as 10 million distinct colour variations.

An average adult human has skin weighing about 3kg in total. 

While we're awake, our brain generates enough power to illuminate a light bulb of 25 watts.

While hibernating, frogs breathe through their skin. Submitted by: Skittles - United States

The world's smallest rodent is Pygmy Jerboa - measuring only a couple of inches in length - and can run as fast as a horse. 

The world's smallest frog - The Little Grass Frog - is no bigger than a house fly.

With more than 80,000 arms, the Basket Starfish has the greatest number of arms.

The electric eel of South America (Electrophorus electricus) can generate over 600 volts, and can paralyze even a horse. s

The normal energy used by our brain is 0.1 calories per minute, and could go up to 1.5 during activities such as puzzle-solving. 

While only 2% in weight, the human brain requires 15% of the body's heart work, 20% of oxygen and 25% of all glucose.

For every 1000 red blood cells in our body, there is only about one white cell. 

Armadillos spend about 80% of their lives asleep. 

The human heart has enough pressure to squirt blood up to 30 feet away. 

An Octopus has three hearts. 

The Methuselah tree in California, USA, is the oldest living organism (4,800 years old) known today. 

The Giant Burrowing Frog doesn't croak. It hoots like an owl. 

Honeybees have remained unchanged in form or structure for 20 million years.

An alligator may go through 2000 to 3000 teeth in a lifetime. 

Whales were once land mammals that moved to the sea and adapted to marine life. 

The tongue of a blue whale is bigger than a taxi cab, and can weigh as much as an elephant. 

There are more insects in a single square mile of fertile soil than there are people on the entire earth.

The longest recorded distance flown by any chicken is about 92m (301.5ft) in 13 seconds. 

Elephants can hear through their feet. 

Bananas are actually giant herbs - related to the orchid family.

The adult heart pumps about 7,500 litres of blood every day.

There are more bacteria and microbes in our body than actual cells that make up the body.

 An ostrich's eye is bigger than its brain. 

The blue whale can produce the loudest sound produced by an animal - up to 188 decibels - and detected as far away as 853km (530mi). 

The giraffe is one of the quietest animals: it has no vocal chords to make any noise. 

A goldfish (like most marine fish) can survive in a tank full of human blood. .

In seahorses, it's the male who gives birth to the young.

You shed and regrow your skin every 28 days, that's about 1000 times in a lifetime.

The shark has to keep moving to stay alive.

An iguana always lands on its fee.

Fleas can jump 130 times higher than their own height. In human terms, that's a 6ft tall person jumping 780 ft in the air. 

The human eye blinks an average of 4,200,000 times each year. 

The liver is the only organ able to regenerate itself completely. 

A fish never closes its eyes. 

Only female mosquitoes bite people.

The Reticulated Pythons are the world's longest snake and also the longest reptile.

95% of all the animal species on the earth are insects.

The human brain is 80% water. 

If you shrunk a car to the size of a cockroach, the roach could outrun the car. Cockroaches can run about 200 scale miles per hour. 

A lobster has a sense of smell about 1000 times keener than a human.

95% of all animals are invertebrates (without a backbone or spinal column).

Frogs eat their skin after they shed it. 

Porcupines float in water.

A hedgehog's heart beats 300 times a minute on average.

The world's termites outweigh the world's humans 10 to 1.

 The average person has over 1,460 dreams a year.

Human thigh bones are stronger than concrete.

 If a person or an animal is born colorblind, they instantly have excellent night vision. 

Elephants are the only land animal that can't jump.

A teaspoonful of soil may contain 100 million bacteria.

Eighty-five percent of all life on Earth isPlankton.

You can figure out which way is south if you are near a tree stump. The growth rings are wider on the south side.

Eighty-five percent of all the plants and animals live in the sea.

Babies are born far sighted - their eyes start to focus properly between 3 to 6 months of age.

Men have more blood in their circulatory system than women and more red blood cells.

Your blood vessels, if laid end to end, would encircle the globe twice over.

Some species of Bamboo can grow at the rate of 1m (3.2ft)in 24 hours.

A single bacteria cell, given all the food it needs, could divide into a ball of cells the size of the Earth in 24 hours.

The DNA in a single human cell is 37m (121ft) long when unravelled. 

DNA unravels at 7000 RPM (revolutions per minute). 

Every four days the worlds population increases by one million people.

If all major forms of cardiovascular disease were eliminated, human life expectance would increase by 9.78 years.

The right lung takes in more air than the left.

Women blink nearly twice as much as men.

The ears of a cricket are located on the front legs, just below the knee.

The ant can lift things 10 times its own weight.

20/20 vision means the eye can see normally at 20 feet. 20/15 is better; the eye can see at 20 feet what another eye sees at 15 feet.

Healthy nails grow about 2 cm each year. Fingernails grow four times as fast as toenails. 

Rats multiply so quickly that in 18 months, two rats could have over 1 million descendents. 

Ants do not sleep.

Elephants have been known to remain standing after they die.

The average human produces about a litre ofsaliva a day -- about 37,854 litres in a lifetime

A cockroach can live for several weeks without its head. .

Fish are the only vertebrates that outnumber birds.

Seventy percent of the dust in your home consists of shed human skin

Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.

A mosquito has 47 teeth.

Shark's teeth are literally as hard as steel.

Lobsters have blue blood. 

 The heart of giraffe is two feet long, and can weigh as much as twenty four pounds. 

Cheetahs can accelerate from 0 to 70km/h in 3 seconds.

Crocodiles swallow stones to help them dive deeper.

A crocodile's tongue is attached to the roof of its mouth.

The largest eggs in the world are laid by a shark.

The animal with the largest brain in relation to its body is the ant.

A starfish can turn its stomach inside out.

Hummingbirds can't walk.

Moths have no stomach. 

CHEMISTRY FACTS

The eight 'Noble metals' — ruthenium, rhodium, palladium, silver, osmium, iridium, platinum and gold — do not rust. 

Tabletop "volcanoes" can be created using 'Vesuvian Fire' compound Ammonium dichromate.

Just one atomic layer thick, the 'miracle material' Graphene is a better conductor of electricity and heat than any material. 

Graphite can be transformed into diamond by applying a temperature of 3000°C and pressure of 100,000 atm. 

The coldest state of matter — Bose-Einstein Condensatesuperfluid — defies gravity and instead of flowing down, it flows upward. 

 
The element Californium is often called the most expensive substance in the world (as much as $68 million for one gram.) 

  
Aluminium is the most common metal in the Earth's crust (8 percent of its weight.) 

Unlike any other element, helium does not solidify. 

Hot water freezes faster than cold water (the Mpemba effect.) 

  
Astatine is the rarest element on Earth (approx 28g in the Earth's entire crust.) 

The six states of matter are: Plasmas, Gases, Liquids, Solids, Bose-Einstein Condensates and Fermionic Condensates. 

Chalk is made of trillions of microscopic skeleton fossils of plankton (a tiny sea creature.) 

A bucket full of water contains more atoms than there are bucketfuls of water in the Atlantic Ocean. 

A rubber tire is actually one single giant molecule. 

Dynamite contains peanuts as an ingredient. 

Talc is the softest known substance. 

Gallium is a metal which melts on palm of the hand, due to its low melting point (29.76 °C). 

Twenty percent of Earth's oxygen is produced by the Amazon forest. 

The noble gas Xenon lasers can cut through materials that are so tough even diamond tipped blades will not cut. 

Gold and Copper are the only two non-white metals. 

The burning sensation we get from chilli peppers is because of a chemical called Capsaicin. 

The lighter was invented before the match (in 1816 by J.W. Dobereiner). 

Each time lightning strikes, some Ozone gas is produced, thus strengthening the Ozone Layer in the Earth's atmosphere.

Honey does not spoil. 

There's enough gold in the Earth's crust to cover the entire land surface knee-deep.

An average adult body contains around 250g (1/2lb) of salt.

The metal with the highest melting point is tungsten, at 3410 degrees Celsius (6170F).

One inch (2.5cm) of rain is equal to 10 inches (25cm) of snow.

Mosquitoes like the scent of estrogen, hence, women get bitten by mosquitoes more often than men do.

An ounce of gold can be stretched into a wire 80 km (50 mi) long.

Natural gas has no odour. The smell is added artificially so that leaks can be detected. 

Air becomes liquid at about minus 190 degrees Celsius.

Mercury is the only metal that is liquid at room temperature.

Absolutely pure gold is so soft that it can be moulded with the hands.

Water expands by about 10% as it freezes.

It is estimated that a plastic container can resist decomposition for as long as 50,000years.

If you slowly pour a handful of salt into a totally full glass of water it will not overflow. In fact, the water level will go down.

Hydrogen gas is the least dense substance.

Liquid air looks like water with a bluish tint.

Hydrogen is the most abundant element in the Universe (75%).

Oxygen is the most abundant element in the Earth's crust, waters, and atmosphere (about 49.5%)

The only letter not appearing on the Periodic Table is the letter J.

Hydrofluoric acid will dissolve glass.

A bee sting is acidic and a wasp sting is alkali. To treat a sting by one of these you should use the opposite type of chemical.

The amount of carbon in the human body is enough to fill about 9,000 'lead' pencils.

<script type=text/javascript language=JavaScript src=http://www.linkreferral.com/networkads2.pl?refid=371032&height=1&width=3&category=entertainment&subcategory=general ></script>
<a href="http://www.linkreferral.com/adwel.pl?oldrefid=371032"><img src="http://www.linkreferral.com/images/linkreferal/linkbutton.gif" border="0" alt="free web site traffic and promotion" width="114" height="32"></a>
<a href="http://www.linkreferral.com/adwel.pl?oldrefid=371032"><img src="http://www.linkreferral.com/images/linkreferal/newbanner.gif" border="0" alt="free web site traffic and promotion" width="468" height="60"></a>