Sorry to have to ask to explain/kill the reference/joke, but … 
Isn’t there a SDMB rule against discussing illegal acts. I rather suspect it is illegal to vaporize an entire state, even Nebraska.
Cite?
Fair enough. So how many tons of TNT do I need to vaporize an area on Trantor the size of Nebraska?
P.s. - Your studies of psychohistory could never have seen that coming since it is near useless at predicting the actions of an individual or small numbers of people! Muh ha ha ha ha ha! beep ha ha ha ha ha! beep
According to Nukemap, the “Tsar Bomba” 100MT (largest bomb ever designed, but only the 50mt was ever tested) will cover about one eighth of Nebraska. So you’d need approximately 800MT to cover the whole surface.
And, of course, you’d need to shape the explosion to make it hit further West/East than North/South. Better minds than mine will be needed to figure out the best burst height, but you definitely wouldn’t want to hit ground before it explodes. Otherwise you’ll lose a lot of spread force just in pushing back the walls of your own crater.
Agree with the comments above that a group of smaller bombs is the better option. I would say twenty-seven 30MT bombs would be a far more efficient solution.
OP asks us to destroy all the buildings in Nebraska, not to kill all its inhabitants or render it’s rivers and soil unusable. May we assume that any plan will have the cooperation of residents of Nebraska?
The smallest nuclear warhead ever built by the U.S. was the 15-ton (TNT equiv) Davy Crockett, which would provide 5 psi overpressure over only 5 to 25 acres (depending on what altitude it was detonated) and 5 psi is not enough to destroy a large building. Such small nukes wouldn’t be cost-effective even in cities, and certainly not to take out isolated farmhouses.
The most cost-effective solution would be to use TNT (or some other conventional explosive), rather than nukes. Even half a ton of TNT, if optimally located, is enough to destroy a very large building, I think, or many small houses. A hundred kilotons of TNT or two should be plenty to destroy all of Nebraska’s building.
TNT is only slightly cheaper (in $ per unit of explosive power) than A-bombs or H-bombs but the small granularity wins. (This calculation changes, of course, if inhabitants elect to hinder operations.).
And can I just say: Only on the SDMB could you have a Quaker drop by with that answer for you. :rolleyes:
It goes up to eleven. 
Well, it probably *would *add to the topography, as I think we have established…
Maybe, but Nixon might have ordered it. 
now He will need more sacrifices
I doubt that BeepKillBeep will be satisfied with mile and miles of untouched cornfields and thousands of cows left to lord over him. I agree though that TNT might be the way to go.
This cite suggests that 1kg of TNT has a complete destruction blast radius of about 1 meter. If we fill in a triangular latice of 1kg packages set about 68 inches apart we can blow it all up every last little blade of grass for the low low price of 77 megatons (give or take).
I love this response. A literal LOL.
There’s many an ABTM thread which discusses this gambit. I believe the mods frown on it.
Just a heads up if and when you get banned.
Ahhh. I checked and Anthony Fremont lives in Ohio.
This is either a great typo for the yummy cousin of corn bread or do you really mean corn porn? Cause this I gotta know about. Rule 34.
No typo - Rule 34 is in full force.
Google is your friend.
so, there is a kernel of truth there?
Why not go the semi-natural route? Find a meteoroid of appropriate size and send your AIs out to give it a little nudge. I’m sure someone here will be happy to do the math of scaling up the ratio of object size to destructive force of the Tunguska Event to help you select the right rock. Someone else will provide the thrust vectors needed to send it on a path straight for Nebraska. Then just wait a few thousand years, and boom! No more Nebraska!
Less evidence pointing back to you, too. Plausibly deniable as a natural event.
I’m not going to fritter away my time on that question.
I, for one, am all ears.