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Dive to Survive
September 27th, 2010, 06:19 PM
How old do you think the Earth is? Any background is welcomed!

Church
September 27th, 2010, 06:20 PM
Science says bout 6 billion I believe from carbon dating, so I would say round there, no real way to tell though.

Perseus
September 27th, 2010, 06:22 PM
It is believed to be about 4 and a half billion years old, so I go with that? Obviously there is room for margin, so that isn't the exact age.

Clawhammer
September 27th, 2010, 06:55 PM
Honestly, why does it matter?

Church
September 27th, 2010, 07:01 PM
Honestly, why does it matter?

Why not know bout the world you live in?

Rutherford The Brave
September 27th, 2010, 07:04 PM
billions of years old.

Perseus
September 27th, 2010, 07:15 PM
Honestly, why does it matter?

It's a debate for fun? And plus, I think it's neat to know how long the Earth has been afloat in the galaxy; do you not care about past life on Earth, either? I find that stuff marvelous. Like dinosaurs, for instance; they are a marvel. They were giant, reptilian beasts who could fly, swim, and walk. Then you have mammals, and even the life before the dinosaurs. Evolution is a neat thing, such as how the Earth formed, and how old it is. So yes, it does matter.

Amnesiac
September 27th, 2010, 08:10 PM
4.54 billion years. (http://en.wikipedia.org/wiki/Age_of_the_Earth)

Sage
September 27th, 2010, 11:28 PM
The world is 4000 years old dumbasses. Man walked with the dinosaurs.

source (http://www.youtube.com/watch?v=2s13X66BFd8)

Jess
September 28th, 2010, 10:09 AM
4.5 billions years old. very very old

Paladino
September 28th, 2010, 11:12 AM
billions of years old ?

Azunite
September 29th, 2010, 01:42 PM
The world is 4000 years old dumbasses. Man walked with the dinosaurs.

source (http://www.youtube.com/watch?v=2s13X66BFd8)

Nah, there were Waxstones, Rockstones and Sandstones before Flintsontes :P

Obscene Eyedeas
September 29th, 2010, 03:37 PM
The age of the earth in itself cannot be fully known. There are many theories that can be used to try and date it but we can only use assumptions. That the earth and its solar system have been developing together. The best age for the Earth comes not from dating individual rocks but by considering the Earth and meteorites as part of the same evolving system in which the isotopic composition of lead, specifically the ratio of lead-207 to lead-206 changes over time owing to the decay of radioactive uranium-235 and uranium-238, respectively. cientists have used this approach to determine the time required for the isotopes in the Earth's oldest lead ores, of which there are only a few, to evolve from its primordial composition, as measured in uranium-free phases of iron meteorites, to its compositions at the time these lead ores separated from their mantle reservoirs. These calculations result in an age for the Earth and meteorites, and hence the Solar System, of 4.54 billion years with an uncertainty of less than 1 percent. To be precise, this age represents the last time that lead isotopes were homogeneous througout the inner Solar System and the time that lead and uranium was incorporated into the solid bodies of the Solar System. The age of 4.54 billion years found for the Solar System and Earth is consistent with current calculations of 11 to 13 billion years for the age of the Milky Way Galaxy (based on the stage of evolution of globular cluster stars) and the age of 10 to 15 billion years for the age of the Universe (based on the recession of distant galaxies).