I am currently studying Gun Triggered Fission Bombs for a science class . . . please tell me if I had the jist of this.

A sphere of U-235 is made around a neutron generator and a small bullet-like thing of U-235 is removed. The bullet is put at the end of a long tube with some explosives behind it, and the spherical U-235 at the other end. When explosion is going to occur, the explosives fire the bullet down the barrel. The "bullet" strikes the sphere and reaches critical mass, thus starting the fission reaction. The bomb explodes.

This was also the type of bomb called LITTLE BOY which was used in WWII.

Also, is there any formula for finding out the efficiency of these bombs?

I am currently studying Gun Triggered Fission Bombs for a science class . . . please tell me if I had the jist of this.

A sphere of U-235 is made around a neutron generator and a small bullet-like thing of U-235 is removed. The bullet is put at the end of a long tube with some explosives behind it, and the spherical U-235 at the other end. When explosion is going to occur, the explosives fire the bullet down the barrel. The "bullet" strikes the sphere and reaches critical mass, thus starting the fission reaction. The bomb explodes.

This was also the type of bomb called LITTLE BOY which was used in WWII.

Also, is there any formula for finding out the efficiency of these bombs?

What I always thought of as being the most scientific website to nuclear weapons is the <A HREF="http://nuclearweaponarchive.org/">High Energy Weapons Archive</A>.

I am not sure if there are formulas to calculate the yield (well -- there surely are, but if they are accurate), but there seem to be some empirical laws regarding the detonation effects of nuclear devices.

What I always thought of as being the most scientific website to nuclear weapons is the <A HREF="http://nuclearweaponarchive.org/">High Energy Weapons Archive</A>.
Thank you for that link. Big help. I'm reading into the information on that site.

Thank you for that link. Big help. I'm reading into the information on that site. Amen! That site rocked!