In the digital world everything big and small, including living things as well as non-living things are represented in numbers. We shall start with the Universe first.
THE UNIVERSE IN NUMBERS
- 14 billion years ago the universe materialized out of nothing.
- It took 400,000 years for the particles to cool down to form atoms.
- Took another 300 million years to form planets, stars and galaxies.
- Expansion of the universe began 13.8 billion years ago.
- The diameter of the observable universe is 570 thousand million million million miles.
- 200 billion stars in the milky way.
- Once in every 200 million years our solar system orbits the centre of the galaxy.
- 7 trillion galaxies in the observable universe.
- 6000 years are required to count the Milky way's stars at a rate of one a second.
- In 4 billion years our galaxy will collide with the Andromeda galaxy.
- The brightest stars emit 6 million times more light than the sun.
- 13 billion years is the age of the oldest star.
- A handful of 5000 stars make up the Pleiades cluster which can be seen with the naked eye.
- In 250 million years time, the stars will have disappeared and the cluster will no longer exist.
- The diameter of the sun is 13,93,684 kilometres.
- Distance from Earth150 million kilometres
- Surface temperature 5,500 degree Celsius
- The sun is large enough by volume to swallow 1.3 million Earths.
- It contains 98.8% of all the matter in the solar system.
- In the core region the temperature soars to 15 million degree Celsius.
- The gaseous matter in the sun is 150 times more dense than water.
- The energy out put from the sun is 385 million billion giga watts per second.
- It takes only 8 minutes for light from the sun to reach Earth.
- It takes 100, 000years for energy released in the sun's core to travel to the surface and emerge as light. (It takes such a long time because the energy is absorbed and re-emitted by trillions of atoms as it passes through the dense radiative zone.)
- The equator takes 25 Earth days to rotate once, but polar regions take 34 days.
- Earth formed 4.5 billion years ago
- 250 million years ago earth's continents all joined together an enormous super continent known as Pangaea.
- One fifth of earth's landscape is mountains
- Solid surface of the earth below sea level is 10,900 meter deep.(The Mariana trench)
- The highest solid surface or point above sea level is 8848 meter high Everest summit
- The surface of most land areas is less than 500 meter above sea level
- Earth's elevation over 4000 meter
- Sea depth below 4000 meter
- 130 million years ago India escaped from the southern land mass, and is moving north, towards Asia.
- 70 million years ago South America split from Africa, while in the north , North America is splitting from Europe
- Continental plates move at a rate of 2.5 centimeter in a year. That is as fast as your finger nails grow. Some move faster, up to 10 centimeter in a year
- Earth's surface and atmosphere contain 1.39 billion cubic kilometer of water
- During ice ages sea level was 120 meter lower than it is today, exposing the continental shelves as dry land
- Temperature of earth's inner core is 5500 degree Celsius
- 1.5 million species of plants and animals live in tropical rainforests
- The length of under water mountain chains formed by mid ocean ridges is 65000 kilometers
- 55 million years ago the Indian and Asian plates crashed together creating the Himalayas
- Deepest point on Earth is 10911 metre below sea level.
- Most of the Mid Atlantic Ridge (2500 metres) is under water. Iceland is the only part of it above sea level
- 60 volcanoes erupt in an average year the world over
- Ash cloud from a large volcanic eruption can be up to 60 kilometres high
- 75% of the world's active volcanoes are under water
- Southern California experiences 30 small earthquakes everyday
- The distance that the whole planet vibrates back and forth in space during the very largest earthquake is one centimetre
- The largest earthquake ever occurred off the coast of Chile in 1960 caused devastating tsunami.
- The length of the rupture under the sea floor that caused the 2004 Indian Ocean tsunami was 1600 kilometres
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