Do you know how much material falls to the earth from space every day? How many species there are in the ocean? How far the continents move every day? In honour of Earth day 2014, Phantom Forest has sourced some interesting facts about our home ……..Planet Earth!
· 3.7 billion miles, the furthest distance a picture of the earth has been taken, known as the “pale blue dot”.
· 2 minutes, the amount of time a human can remain in space unprotected.
· Chinas air pollution can be seen from space. The great wall cannot be seen.
· There are not 24 hours in a day. 23 hours, 56 minutes and 4 seconds – The time it takes the earth to rotate on its axis, called a sidereal day.
· 38 000, the number of man mad objects that have orbited the earth since the launch of Sputnik in 1957.
· Earth is smoother than a bowling ball. High mountains and deep trenches make up only 1/5000th of the earth’s circumference.
· NASA estimates that one piece of space junk returns to earth every day.
· 100 tones of small meteorites, mainly fragments of dust, enter the earth’s atmosphere every day.
· The largest meteor ever to fall to earth left no crater. The Hoba meteorite was flat on both sides so may have skipped through the atmosphere like a stone over water.
· The “Armstrong limit” is the 19km limit of altitude at which it is necessary to wear a pressurised suit. Without one, water boils at body temperature.
· The ozone hole is shrinking. In 2012, the hole in the layer was smaller than it has ever been in the past ten years.
· There are 8,6 million lightning strikes on the planet every day.
· Water on earth is 97% salted and 3% fresh.
· Antarctica has as much ice as the Atlantic Ocean has water.
· One litre of sea water contains about 13 billionths of a gram of gold.
· 99% of the Earths gold lies in the core.
· 90% of all volcanic eruptions happen in the ocean.
· The deepest area of the ocean is the Mariana trench, at 10,9km.
· 90% of rubbish in the world’s Oceans is plastic.
· Up to 1 million species lives in the oceans.
· Eight to twelve fatalities are caused each year by shark attack. 100 million sharks are killed each year for their fins.
· Earth is the only planet in our solar system with plate tectonics. Without them carbon wouldn’t be consumed and re-cycled and the earth would overheat. (Just like Venus)
· Rare earth elements are not rare. Lutetium, the least abundant rare earth element is nearly 200 times more common in the earth’s crust than gold.
· 99% of earth’s gold lies in its core. Enough to form a 1.5 foot coat over the entire surface.
· 5500 degrees Celsius is the temperature of the earth’s core, the same temperature as the surface of the sun.
· 12,4 kilometres is the deepest ever distance drilled by a borehole, being Russia’s Sakhalin-1. The distance to the centre of the earth is 6371 kilometres.
· The weight of the world’s largest known crystals is 55 tonnes, found beneath Mexico’s Naica silver mine.
· The oldest bacteria fossils that were found in Australia are 3.5billion years old. This is longer than earth’s atmosphere has had oxygen.
· It’s been about two million years since the last rainfall in the driest place on earth. “Dry valleys” Antarctica.
· The distance the continents move every year is 2cm.
· 75% of the earth’s animal species could be extinct within the next 300 years.
· Only 14% of the Earths species have been identified.
· 200 000 people are born every day.
· 2 people die every second.
· 106 billion people have existed on the earth.
· 9,2 billion is the estimated population on earth by the year 2050!