There was a "Sundial" that I'm very pleased was never built. "Sundial" was the codename for a 10 gigaton H-bomb design produced by Edward Teller and his team -

There was a "Sundial" that I'm very pleased was never built. "Sundial" was the codename for a 10 gigaton H-bomb design produced by Edward Teller and his team - the gigaton primary being called "Gnomon". There was no military value in these monsters - they would have been enormous (probably thousands of tons) and would need to be detonated at extreme altitude. http://blog.nuclearsecrecy.com/2012/09/12/in-search-of-a-bigger-boom/ http://blog.nuclearsecrecy.com/2012/09/12/in-search-of-a-big...