Antimatter/Amphicoelias

I did some calculations last night, and I figured out that if you combined one kilogram of matter and one kilogram of antimatter, the resulting explosion could be felt in Montana and possibly Idaho. That's a huge explosion! One gram of antimatter combined with one gram of matter would create an explosion equal to 47 kilotons of TNT! A kiloton is exactly one thousand tons, so that's 47,000 tons of TNT!

I was recently running at the Kingston Middle School, and I calculated that A full-grown Amphicoelias could stand with its tail 35 yards away from the end zone and its head would be in the other end zone (on a football field). That's huge!