Pretty small for an atom bomb, I would have thought.

You want to know how to make an atom bomb?

At that time we didn't know about the atom bomb.

After all, the thing did have what it said was an atom bomb.

Inside he felt as though an atom bomb had just gone off in his brain.

But please let this be done without the atom bomb!

Once the door was closed not even an atom bomb would be able to open it.

Way back in the middle of the last century they found out how to do the first sort; that's what atom bombs are based on.

"Once we get that place, can you make me some atom bombs?"

Like a bunch of kids playing with an atom bomb.