X-Message-Number: 33284 From: "Eisab" <> References: <> Subject: Re: CryoNet #33279 - #33282 Date: Fri, 28 Jan 2011 22:21:44 -0500 How do they know it is the same C14? Carbon-14 has a half-life of 5730 years. I probably incorporating C14 as I sit here. The lens protein may not change but the carbon in the protein might be. Basie Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=33284