tom swift among the diamond makers

 so today it's going to e boring because I had to do a review. so I thought about what to say. and I guess we can just review them like in the book. first, we will talk about carbon 14 if you might know this type of molecule takes a very long time to stabilize. like 7,000 years so scientists can use this to find the age of bone and things and you still might remember the polio epediemic. this disease worked very fast in maiming or killing people and a man named joseph salk made a vaccine for it and that is what you get today just about the same time.