I forgot to add that CTD's math comments were correct in that two 1/4 lives would leave more material than one 1/2 life. However in post #39563 on page 2 of the same thread:
Originally Posted by CTD
Yes, the curve is exponential, and it's not hard to play tricks with the math. One could calculate 1/4 lives, 1/3 lives, or 1/277 lives for decaying elements. All will result in different exponential curves.


This is the statement that he is trying to support with his tricky math in an attempt to discredit the calculations involved in radioactive decay.
Again, CTD is trying to get you to believe that for the math to be valid, two 1/4-lives should result in the same amount of decay as one 1/2-life.

When shown it doesn't work that way, he waited a while then claimed he had shown us to be wrong...in another thread of course.

What does CTD stand for....Creationism's Talented Deceiver?


A faith that connot survive collision with the truth is not worth many regrets. -- Arthur C. Clarke