Quick radiometric dating question- misused techniques

That first study on strontium 92 has a spread of 5% between values, and with a half-life of under three hours, that isotope is 1) rare and 2) REALLY HOT to handle. Errors in decay rate measurement for things like carbon-14 will be smaller.And 5% error in half-lives fails to be much comfort for a YEC, anyway. They need five million percent errors.Edited by Coragyps, : fumblefingers

We can and have - type 1A supernovae show the same rate of decay of nickel-56 to cobalt-56 to iron as we see right here on earth, even out to a few billion years ago. Wikipedia will get you started on the details.