[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Re: starship-design: Suspended Animation

In a message dated 5/24/98 10:34:10 AM, guderiak@hotmail.com wrote:

>Hi Jonathan,
>No, this wouldn't happen. The maximum age of an organisms depends upon 
>the number of cell cycles possible for each different tissue. For 
>example, a cell from a human lung can only divide up to 50 times. If you 
>cultivate lung cells in a cell culture and deep-freeze them (in liquid 
>nitrogen) after their 25th cycle (let's say, for 5 years), they will 
>continue with cycle Nr. 26 when you thaw them up again - and will 
>continue to grow at the same speed as before. For the cells, nothing has 
>happened when they were frozen.

This being the celular clock Tim and I were refering to.