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RaD
07-24-2007, 06:39 PM
Fast Facts: Earh and the Universe.

The order of the planets, starting closest to the sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

The one place where a flag flies all day, never goes up or comes down, and does not get saluted, is the moon.

Earth is not round; it is slightly pear-shaped. The North Pole radius is 44mm longer than the South Pole radius.

A green diamond is the rarest diamond.

The ozone layer averages about 3 millimeters (1/8 inch) thick.

A diamond will break if you hit it with a hammer.

The crawler, the machine that takes the Space Shuttle to the launching pad moves at 3km/h (2 mph).

Summer on Uranus lasts for 21 years - but so does winter.

The Sahara desert expands at about 1km per month.

Oceanography, the study of oceans, is a mixture of biology, physics, geology and chemistry.

More than 70% of earth's dryland is affected by desertification.

The US has one of the highest fire death rates in the industrialised world, with more than 2 million fires reported each year.

The sun is 330,330 times larger than the earth.

The largest iceberg ever recorded was 335km (208 miles) long and 97km (60 miles) wide.

Luke Howard used Latin words to categorize clouds in 1803.

Hurricanes, tornadoes and bigger bodies of water always go clockwise in the Southern Hemisphere and counterclockwise in the Northern Hemisphere. This directional spinning has to do with the rotation of the earth and is called the Coriolis force.

Winds that blow toward the equator curve west.

Organist William Herschel discovered the planet Uranus in 1781 with the first reflecting telescope that he built. He named it Georgium Sidium in honour of King George III of England but in 1850 it was renamed Uranus in accordance with the tradition of naming planets for Roman gods.

Planets, meaning wanderers, are named after Roman deities: Mercury, messenger of the gods; Venus, the god of love and beauty; Mars, the god of war; Jupiter, king of the gods; and Saturn, father of Jupiter and god of agriculture; Neptune, god of the sea.

During a total solar eclipse the temperature can drop by 6 degrees Celsius (about 20 degrees Fahrenheit).

The tallest waterfalls in the world are Angel Falls in Venezuela. At 979 m (3,212 ft), they are 19 times taller than the Niagara Falls, or 3 times taller than the Empire State Building.

Although the Angel Falls are much taller than the Niagara Falls, the latter are much wider, and they both pour about the same amount of water over their edges - about 2,8 billion litres (748 million gallons) per second.

There are 1040 islands around Britain, one of which is the smallest island in the world: Bishop's Rock.

All the planets in the solar system rotate anticlockwise, except Venus. It is the only planet that rotates clockwise.

Earth is the densest planet in the solar system and the only one not named after a god.

Earth orbits the sun at an average speed of 29.79 km/s (18.51 miles/sec), or about 107 000 km/h (about 67,000 miles/hour).

One year on earth is 365.26 days long. One day is 23 hours, 56 minutes, and 4 seconds long. The extra day in a leap year was introduced to compensate for the discrepancy in the Georgian calendar.

Plates carrying the continents migrate over the earth's surface a few centimetres (inches) per year, about the same speed that a fingernail grows.

On average, 13,000 earthquakes are located each year.

The magnetic north pole is near Ellef Ringes Island in northern Canada.

The magnetic south pole was discovered off the coast of Wilkes Land in Antarctica.

There is zero gravity at the centre of earth.

the deepest mine in the world is Western Deep Levels near Charletonville, South Africa. It is 4,2km (2.6 miles) deep.

The deepest point in the sea: the Mariana Trench off Guam in the Pacific Ocean; it is 10,9 km (6.77 miles) below sea level.

Earth is slowing down - in a few million years there won't be a leap year.

The tail of the Great Comet of 1843 was 330 million km long. (It will return in 2356.)

There are more than 326 million trillion gallons of water on Earth.

About 500 small meteorites fall to earth every year but most fall in the sea and in unpopulated areas.

There is no record of a person being killed by a meteorite but animals are occasionally hit.

The Dead Sea is 365 m (1,200 ft) below sea level.

A storm officially becomes a hurricane when cyclone winds reach 119 km/h (74 mph).

Source: Didyouknow.org (http://didyouknow.org/fastfacts/earth.htm)

douf
07-24-2007, 06:43 PM
awesome man ... really educational

Chris
07-24-2007, 09:55 PM
"There is zero gravity at the centre of earth."

Funny thing i started thinking about when I read that was the whole digging to China thing :P

Now, lets say there was a hole from Norway to China(Lets forget about the lava and whatever).
So.. If you jump down, you will fall, and fall, and fall.. And fall some more, until you reach China, and if you are lucky, you might just be able to grab ahold of the edge on the chinese side. But if you dont you will fall back,
and you will end up almost where you started, ut loosing speed as you go along, and will eventualy just float in the middle where there is no gravity.. But this is impossile because of the magma, and the fact that the earth is rotating
so you would spin around fast as fuck while falling and probably bounce of the walls as you fall.

douf
07-24-2007, 11:58 PM
funny thing about gravity, there has been many theories regarding its cause, the most appealing is,

the movement of the inner core produces an electric field which create a current, and because it runs in circles it produces a magnetic field, so if the earth stop moving we will fall into space

DotVersion
07-25-2007, 12:48 AM
Thnx , Sad that theres no more pluto :(

psyxeon
07-25-2007, 01:10 AM
Pluto was to far anyways :whoops:

Digital.X
07-25-2007, 02:21 AM
Wow, that is a lot of information....... There is zero gravity at the center of the earth?

.Turbo
07-25-2007, 08:48 AM
Nice facts :P

There are 1040 islands around Britain, one of which is the smallest island in the world: Bishop's Rock.
w00t we rock

Chris
07-25-2007, 09:41 AM
No, you dont rock, you just have a rock... Bishop's Rock

KillerJoe
07-25-2007, 11:14 AM
There is zero gravity at the centre of earth.[/b]

Not really true..

Well there is zero gravity with respect to the inertial system we all are in (earth), but obviously moving from the surface to the center of the earth won't have any effect on the way the gravity from the Sun or the Milkyway as such influences on us...

Although gravity declines with the distance squared it can never reach zero (well, if you move to infinity it can).

Cheers
KJ

kato
07-25-2007, 11:26 AM
Thnx , Sad that theres no more pluto :([/b]
pluto isnt a planet. its a big ball of ice. thats why it isnt included.

lots of cool stuff listed. i didnt realise we had that many islands surrounding us (britain).

RaD
07-25-2007, 04:03 PM
Not really true..

Well there is zero gravity with respect to the inertial system we all are in (earth), but obviously moving from the surface to the center of the earth won't have any effect on the way the gravity from the Sun or the Milkyway as such influences on us...

Although gravity declines with the distance squared it can never reach zero (well, if you move to infinity it can).

Cheers
KJ[/b]

To human standards the gravity in the center of the earth and in space is zero. Probably not absolute zero, but probably more like 0,0001... It is so minute that it can be ignored because a human won't be able to feel it.

And yes, Pluto is stated to be a bit asteroid in the outer asteroid belt, probably one of the largest, but some more of similar sizes have been found out there... :)

kato
07-27-2007, 09:09 AM
To human standards the gravity in the center of the earth and in space is zero. Probably not absolute zero, but probably more like 0,0001... It is so minute that it can be ignored because a human won't be able to feel it.[/b]
the thing that i found cool is that theres a gravitational pull between people as well. its so small you dont notice but its there.

RaD
07-27-2007, 03:26 PM
the thing that i found cool is that theres a gravitational pull between people as well. its so small you dont notice but its there.[/b]

That's exactly what i mean. :)

The gravitation is there but it's so small that it really doesn't do anything.

bbob
07-27-2007, 09:45 PM
Did you know that on the first bombing raid on Berlin in the second world war, the only casualty was the only elephant in the Berlin Zoo/Tiergarten..?