what is the most bullet resistant substance on earth?
447439
Steel... kevlar and ceramics are good for body armor, but when was the last time you've heard of small arms fire penetrating a tank.
970542
I guess you mean most g's and survived!  I'd guess there have been people adjacent to explosions who have been subject to short bursts of very high g.\n\nWikipedia records two very high g survivals:\n\nColonel John Stapp in 1954 sustained 46.2 g in a rocket sled, while conducting research on the effects of human deceleration.\n\nFormula One race car driver David Purley survived an estimated 179.8 g in 1977 when he decelerated from 172 km·h−1 (107 mph) to 0 in a distance of 66 cm (26 inches) after his throttle got stuck wide open and he hit a wall.
754335
Most fuel (other than hydrogen, nuclear etc) is hydrocarbon.\n\nPlastics, solvents, most paint, most (all?) man made clothes, the insution on the wire...\n\nA bit of "building block" for modern material as well as fuels, solvents and some medicines too!!!!
550619
Most strong oxidizers are going to be potentially explosive.  What are you trying to oxidize?\n\nOctanitrocubane has some serious kick though.
251965
The bullet would disintegrate in the Earth's atmosphere.\nExplode?  From a bullet?  Uh, no.
717885
The US Army.\n\nThe Letherman Multi-tool is issue.\n\nHint: Never bring a knife to a gunfight.
1168378
Hardest substance is Diamond.
55000
abrams 120mm.. they are made from depleted uranium which acts as a superheating element.. makes a nice tank buster.. they are not very safe however.. because they are radioactive. the people who clean those things up get very sick..
463492
The question was not the "largest"... the asker's question was "strongest".\n\nBy this I can only assume they mean "most devastating in its capability" or "most effective when engaged" and that they do not mean "the military that can lift the most weight".\n\nAnswer: The United States of America has the 'strongest' military. Here's why:\n- Firepower: The U.S. possseses and controls the largest amount of destructive explosives on the planet. Bullets, dynamite, gunpowder, C-4, fuel bombs, napalm and nuclear, just to name a few types.\n- Weapons delivery: The U.S. has the most accurate, well maintained, highe-tech, widely deployed and well-run firepower delivery system on Earth. Gun barrel accuracy, naval, air, land delivery systems - all highly maintained to very stringent standards.\n- Intelligence: Despite all the joke we could make about this word and the military, the fact remains that no country has the technical and human intelligence and intelligence processing capabilities as the U.S. The NSA alone has a budget bigger than India's gross national product in 2004. Satellites, command and control, phone, internet, private internets, video communications, data encrpyion, data de-cryption, diversified Human spy assets, global corporate data, data mining, etc., etc., etc.\n- Money: no military in the world is as well funded, consistently well funded, as the U.S. Military is.\n\nIf this is the best answer, please vote it the best answer. Thanks!
327056
AK47 all the way.\n\nHundreds of thousands of hardened nutters in crackpot regimes, terrorist organisations and Russia can't be wrong.\n\nBesides, they will work in any conditions no problem.  The M4 is less reliable.
792307
The current issue interceptor body armor vest alone will stop 9x19 milimeter Luger pistol rounds. However, with the ceramic 10"x12" ceramic trauma plates in the front and back of the vest, the interceptor vest will stop multiple hits from rifle rounds as big as 7.62x54 milimeter Russian, which is the most common caliber of sniper rifles used by insurgents in Iraq and Afghanistan. \n\nThe other piece of body armor used by our military is the Ground Combat Helmet, which is a smaller and lighter version of the Kevlar Helmet, except the Ground Combat Helmet will stop multiple hits from 9x19 milimeter Luger pistol rounds and shrapnel from explosives.
633187
The deadliest poison of an arachnid belongs to the death-stalker scorpion. It is several times more potent than the deadliest poison belonging to a reptile - venom of a fierce snake found in Australia.
1104261
That'd be Astatine, there's about 25g of naturally occurring Astatine on the planet only.
366962
I don't know medically important examples, but nitrocellulose (gun-cotton) is made from nitric acid and cellulose (like from cotton).  I think the nitro-groups replace the OH groups.  The resulting product is an explosive (it can burn without oxygen because it has the required oxidizing groups in the molecule.\n\nThe sugar substitute sucralose (Splenda) is made from sugar where a lot of groups are replaced with chlorines.
650245
Researchers at the University of California, Riverside have discovered the world's strongest acid. Remarkably it is also the gentlest acid. This non-toxic and non-corrosive acid may have a role in processes such as improving the quality of gasoline, developing polymers and synthesising pharmaceuticals.\n\nHow can an acid be both strong and gentle? The answer lies in the way chemists define the strength of an acid. Acid strength is the ability of an acid to add a hydrogen ion (H+) to basic molecules. On the other hand, corrosiveness has a lot to do with the nature of the negatively charged part of an acid that always accompanies H+.\n\nFor example, hydrofluoric acid (HF) dissolves glass because the fluoride (F-) part of the acid attacks the silicon atom in silica glass at the same time that H+ attacks an oxygen atom, according to UC Riverside Distinguished Professor of Chemistry, Christopher Reed, one of the authors of the findings.\n\nAnother example is the choice of an acid to clean lime deposits from inside a copper kettle, he pointed out. The wise homeowner chooses hydrochloric acid not nitric acid because the chlorine part of hydrochloric acid does not attack copper whereas the nitrate part of nitric acid would dissolve the kettle in a mess of toxic brown fumes.\n\nThe findings were published in Angewandte Chemie in a paper titled 'The Strongest Isolable Acid', co-authored with Reed, UCR Colleagues Mark Juhasz, Stephan Hoffmann and Kee-Chan Kim, and Evgenii Stoyanov of the Boreskov Institute of Catalysis in Novosibirsk, Russia.\n\nThe new 'strong-yet-gentle' acids are called carborane acids. The secret to their strength is twofold. Most importantly, the carborane part of the acid is an extremely weak base (ie, weakly alkaline), and carboranes have extraordinary chemical stability.\n\nThey have an icosahedral arrangement of eleven boron atoms plus one carbon atom, which is probably the most chemically stable cluster of atoms in all of chemistry, according to Reed. This means that the carborane part of the acid cannot participate in the chemistry of corrosion and decomposition that fluoride and nitrate show in hydrofluoric acid and nitric acid. As a result, carborane acids can add hydrogen ions to weakly basic molecules without destroying the often delicate positively charged molecules that are formed. This is the essence of their strong-yet-gentle qualities, Reed added.\n\nExamples of molecules that add a hydrogen ion and are stabilised with a carborane as the negatively charged part of the product include benzene to give benzenium ion, C60 to give 'protonated buckyball,' and alkenes to give carbocations.\n\nNone of these positively charged molecules had been 'put in a bottle' at room temperature before because the acids used previously would decompose them. The strong-yet-gentle carborane acids overcome this difficulty, allowing chemists to take a closer look at important molecules whose existence was typically fleeting, Reed said. Acidified molecules are important short-lived intermediates in a huge variety of acid-catalysed chemical transformations including the digestion of food, gasoline improvement, polymer formation and the synthesis of pharmaceuticals.\n\nHow strong are carborane acids? The strongest one is at least a million times stronger than concentrated sulfuric acid (H2SO4) and hundreds of times stronger than the previous record holder, fluorosulfuric acid (HFSO3).
121586
Masterlock.  Tried to shoot one off once, and it didn't work.  They're tough
391780
Only if it was a hammer reinforced with diamond particles.  Otherwise, no...diamonds are the hardest substance on Earth.