Does anyone know the blast yield of a 25 megaton thermonuclear explosion?
338477
WHAT RADON SAID PRETTY MUCH SUMMED IT UP EINSTEIN!
328638
I recollect seeing 200,000 to 250,000 for both cities, including the aftermath.  The Hiroshima bomb was a low yield 15 kiloton device.  The strategic devices today are around 400-500, while the tactical nukes range from .3 to 200.  Some world we live in.
814234
well that is a difficult question... actually it depends on the bomb \nalso....\nand what exactly happens is the blast covers a qutie a good area... but along with the blast the hot gases released during and after the fission also causes devastation because the temprature of the gas molecules is very high...
443982
well it was a pretty big explosion, I do not know if I would call it massive, but I guess that depends on what you are comparing it to. Mike was an early test of the H-bomb.\nHere is a little history of the testing \nhttp://www.ratical.org/radiation/KillingOurOwn/KOO4.html\nand here is a pic of it\nhttp://www.zvis.com/nuclear/dimg.php3?ivymike1,ivymike\nhee hee I just burst out laughing when reading the article and discovered the device which exploded was called sausage!
138258
try these sites: http://www.phy.ornl.gov/astrophysics/data/cf88/\n\nhttp://www.llnl.gov/science_on_lasers/07AstSpace/AS-F_Ther.html\n\nhttp://arxiv.org/abs/astro-ph/9801028\n\nI hope this helps....\n\nDon
408350
Ummm I am not sure what you are asking. Are you asking if TNT produces radiation? if so then, No there is no radioactive fallout from TNT.\n\nBut if you are asking if TNT can cause the same destructive damage as a nuclear bomb (without the radiation damage) then yes. that is why they measure it against TNT so we have an idea of how destructive it is.
660156
http://www.physlink.com/education/askexperts/ae25.cfm
332248
Look, a 1000 megaton detonation (whether it was due to a nuclear device or due to a meteor impact) would blow the line-of-site atmosphere into space.  We'd all suffer direly if that happened.\n\nA 10,000 megaton (or 10 gigaton) device would locally shatter the crust, and produce a surface wave that would do major damage to the crust all across the world.  Think of a bell: whack it hard enough anywhere and the whole thing rings, and if the whack is hard enough, the temporary standing waves would possibly shatter or crack the bell.  If you don't believe me, look at the Liberty Bell--that crack is (supposedly) due to it being rung hard enough.  Imagine that with the crust of the earth!  Pretty, it ain't.\n\nFrankly, nuclear weaponry is a silly approach to such an effort.  Throw rocks from orbit--you can get nuclear grade energies easily, and you can do it without any radiation.
935563
Try http://heasarc.gsfc.nasa.gov/docs/snr.html \nand   http://en.wikipedia.org/wiki/Supernova\n\nalso try www.nasa .gov
674783
Everyone up until this point is more then 75% wrong. A Modern thermonuclear explosion occurs only one way. The other people who have answered your question before me have been watching too much TV or reading OLD encyclopedia's. A hydrogen bomb is not a thermonuclear explosion. Electrical shock...you got to be kidding me ...Detonation is accomplished by several means but the primary Explosion is small in comparison to the secondary blast. Highly radioactive or "HOT" Enriched Plutonium and or uranium particles are forced together at very high velocity,(Magnetically)the initial "Fusion" of these already unstable particles causes a exploding similar to TNT. The secondary explosion, or "Fission", destruction of the actual atoms of the forced together particles is what creates that horrific blast.The secondary blast itself has three stages. First an intense vacuum affect, the fission actually sucks oxygen atoms (or anything for that matter)into it.Secondly a shock wave will occur, thirdly the actual nuclear blast of super "Hot" and radioactive material.Material that was sucked in by the vacuum. Keep in mind that this all occurs withing a few seconds.
803226
No...\n\nAll calculations are based off of an impact explosion model developed for determining the effect of Bunker Buster artillery.\n\nThat type of impact would be no diferent than what was seen when battleships lobbed volkswagen sized shells into the earth...  Only the size and velocity of the projectile are increased to reflect the meteor...
976264
Are you just looking for nuclear scattering cross-sections?  If you want a mean free path, it's going to depend on the density.\n\nIf you have a better library than I do, you could pursue:\nhttp://cat.inist.fr/?aModele=afficheN&cpsidt=11017441\nwhich might have the cross section.  Searching the web for H(n,n') doesn't turn up as much promising as I had hoped.
346881
Around 20 to 30 pounds, based upon my understanding of declassified nuclear weapons design.\n\nLet's use an implosion design, not a gun design, as implosion is smaller.\n\nSo, use about a pound or two of uranium, about 10 pounds of high explosive, about 10 pounds of shielding & guts, and there you are!\n\nA suitcase nuke (yield of about 50kt) would fit into a small suitcase. It has been documented that the Soviets kept one in their embassy in DC for detonitation in case of a nuclear WWIII.
446553
Lots of fallout.  LOTS.\n\nHere's a fun fact; the accident at Chernobyl plant released 200 times the radiation of both atomic bombs dropped on Japan.  The radiation reached every corner of Europe.  And that was just one reactor out of four.\nSo a bomb dropped on a nuclear plant would probably be the end of everything within 500 miles.
385084
I was in India during those pesky bomb testings back in 1998.   At that time they didn't have long range capacity.  Sounds kind dumb to shoot a 10 megaton 200 miles.  Maybe they have it figured out now?
747780
This is an estimation and it varies.  The higher the altitude, the larger the blast radius but it is usually around 15 to 20 miles.\n\n\nHowever, the largest Nuclear Weapon ever detonated, the Tsar Bomba, was such a large explosion, it could have cause Third-Degree Burns at over 60 miles away.  Its seismic shock was large enough to be detected on its third trip around the earth The effect could be felt at over 600 miles away and was still visible at that distance.\n\nAren't they fun?
235031
those ans r right but I just want add whats not listed.\n\n4 the 2nd ans for explosion just ad pure Rb(37),Cs 55, or Fr 87 (in their pure metal alloy form) mix it with water. then BOOM. Cs and Fr is extremely reactive with H20\nso biggest bang will be Fr. \n\nthe reaction 2Fr(solid) + H20(gas or liquid) = Fr2O(oxide) + H2 (gas)\nthe reaction is very rapid, so it realeases a big ammount of H2 quickly in a very short time ( BOOM)\n\nanyway mixing H20 with NaCl do not create NaOH and HCl in their pure form. they only form ions of H+ and OH- and Cl- and Na+ these things moves arround in liquid, so u cant say that it is a stable NaOH and HCl