[quote]Zap Branigan wrote:
Exactly! That is why we can measure the radioactivity of their bones to determine their age.[/quote]
No. They measure the amount of Carbon14 left in their bones. Carbon 14 is a radioactive isotope of Carbon (normally found as Carbon 12 with the number referring to the structure of the nucleus).
[quote]brucevangeorge wrote:
Zap Branigan wrote:
Exactly! That is why we can measure the radioactivity of their bones to determine their age.
No. They measure the amount of Carbon14 left in their bones. Carbon 14 is a radioactive isotope of Carbon (normally found as Carbon 12 with the number referring to the structure of the nucleus).[/quote]