The earth has been determined by radiometric dating to be Ipad video random chat sex

That uranium, which was created during a supernova that occurred long before our solar system existed, lingers in trace amounts within the Earth.

[Dear Science: Where do old spacecraft go when they die?This spawned several earnest — if not entirely successful — attempts to determine the age of the Earth based on ongoing natural processes.One calculated how long it would take rivers to deliver enough dissolved minerals to the ocean to give it its current saltiness (answer: 90 million to 100 million years).Others looked at the average rate of sedimentation and concluded it would take anywhere from 3 million to 1.6 billion years for the rock record to reach its current thickness. ] But the big breakthrough came with the invention of radiometric dating.Shortly after radioactivity was discovered in 1896, scientists realized they could figure out how old a rock was by measuring how much of the uranium in it had decayed into lead.

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