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All forms of life need it, and if they don't get enough of it, they die.

In some places, it's treasured and incredibly difficult to get.

Potassium-40 is another radioactive element naturally found in your body and has a half-life of 1.3 billion years.

Other useful radioisotopes for radioactive dating include Uranium -235 (half-life = 704 million years), Uranium -238 (half-life = 4.5 billion years), Thorium-232 (half-life = 14 billion years) and Rubidium-87 (half-life = 49 billion years).

By looking at the ratio of carbon-12 to carbon-14 in the sample and comparing it to the ratio in a living organism, it is possible to determine the age of a formerly living thing fairly precisely. So, if you had a fossil that had 10 percent carbon-14 compared to a living sample, then that fossil would be: t = [ ln (0.10) / (-0.693) ] x 5,700 years t = [ (-2.303) / (-0.693) ] x 5,700 years t = [ 3.323 ] x 5,700 years Because the half-life of carbon-14 is 5,700 years, it is only reliable for dating objects up to about 60,000 years old.

However, the principle of carbon-14 dating applies to other isotopes as well.

In the movies, scientists use “carbon dating” to determine the age of ancient ... Plants are factories that do all of the work to process the basic elements of life and make them available to us.

carbon dating would be accurate would be if the atmostpheres carbon 14 were stable all ..If you have read the articles How Cells Work and How Food Works, you have heard about things ... How we know the first amount of carbon 14 in a fossil's body ? I watched one video where he criticized scientists for carbon dating dinosaur fossils and subsequently getting ...

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Scientists determine the ages of once-living things by measuring the amount of carbon-14 in the material.If you're seeing this message, it means we're having trouble loading external resources on our website.Often, elements come in both radioactive and nonradioactive versions that differ in the number of neutrons they contain.In others, it's incredibly easy to get and then squandered.If you're behind a web filter, please make sure that the domains **unblocked.

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The name, also given as Ningbo, tanslates to literally to "Tranquil" (宁 Ning) "Waves" (bō 波).

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