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Ridiculously Potent Explosive

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The chemical bomb that created this blast was small enough to be transportable by semitruck.
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It is a well-known fact that Everything Is Better With Explosions and many authors would also agree that Bigger Is Better. After all, the bigger the explosion, the more powerful your devices and the bigger the Spectacle! Thus, logically, Everything is Even Better With Bigger Explosions, right?

Just one problem; the explosion you're now displaying is far too big to be caused by the explosive you say is causing it — or, in the case of fictional explosives, too big for any known real-world explosive of equivalent size and type; it's literally providing too much bang for its buck. To create the explosion from that small a package would require a Ridiculously Potent Explosive.

Some authors realize this and create their explosives out of Unobtainium, Magic, or their local Green Rocks or Minovsky Particle in an attempt to justify the explosive power, but even that is not a guarantee that you won't end up with creating an unjustified Ridiculously Potent Explosive if, for instance, your explosion is chemical yet rivals nuclear, or antimatter, devices in potency.

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Subtrope of Artistic License – Physics, often a case of Sci-Fi Writers Have No Sense of Scale in terms of energy, or it might occur because Writers Cannot Do Math. May be used to create Earth Shattering Kabooms. Compare Made of Explodium, for things which really shouldn't be exploding in the first place. Compare and contrast Big, Bulky Bomb, another similar (but reversed) misconception where a huge-looking bomb may have a bigger yield compared to a smaller one (disregarding the bomb's active elements). Examples might be subjected to Science Marches On should we manage to create more potent explosives in the future. Compare with Everything Makes a Mushroom, where the mushroom cloud itself is usually Played for Laughs.


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Examples:

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    Anime & Manga 
  • Aura Battler Dunbine: The world of Byston Well uses special materials to create what appear to be regular missiles and grenades for its Aura Machines, which run on the spirit energy (Aura) of the pilot. They are only normal in Byston Well. One of the two creators of Aura Machines later learns that the environment of Byston Well suppresses chemical reactions, and Aura power in modern (Upper) Earth is ten times more potent. Standard Aura chemical-based missiles and grenades fired in Upper Earth have the power of nuclear weapons and entire cities are destroyed as a result.
  • In Rurouni Kenshin, the bomblets Sanosuke obtains before heading for Kyoto are small enough to fit in a palm. Yet, when he throws them at the Rengoku, Shishio's personal armored battleship, the explosion it's powerful enough to critically damage the ship, which then inevitably sinks.

    Films — Live-Action 
  • A New Hope: By the numbers, the Earth-Shattering Kaboom that wipes out the planet Alderaan would require more energy than the sun produces in two years and is definitely more than the relatively puny laser shown should be capable of outputting. Supplemental materials Hand Wave this by explaining that the Death Star's "hypermatter reactor" uses exotic particles from hyperspace to cheat the laws of physics and Rogue One makes great emphasis in the Khyber Crystals that are used to boost the laser's power (and were originally used for lightsaber construction — it's all but flat out stated in canon that the superlaser just runs on space magic by now).
  • The Avengers (2012) shows one of Hawkeye's trick arrows, which can't be more than grenade-sized, blow up with a fireball larger than one of the four propeller engines that keep the Airborne Aircraft Carrier aloft.
  • In Die Hard with a Vengeance, two volatile liquids mixed creates a binary explosive known as PLX, which is energetic enough to flip a chair using only a paperclip-tip's worth. PLX actually exists in the real world but neither looks like it does in the movie nor is it — or any known chemical explosive — that energetic.
  • In The Mouse That Roared the MacGuffin that is central to the plot (and provides the Duchy of Grand Fezziwig with the victory it doesn't wants) is the "Q-Bomb", an experimental nuclear device with the capacity to take out an entire continent that just also happens to be so compact that it's shaped, has the same weight, is as easy to carry as (and is portrayed by) an American football.
  • James Bond showcases this in GoldenEye with its signature exploding pen, taking the top half of a test dummy clean off. The MythBusters would later show that this is an impossible feat for a pen-sized explosive to do, even with modern explosives.
  • In Van Helsing, Carl demonstrates the effect of a single drop of "Nitroglycerin No.48" — it blows up like a grenade, scaring the bejeezus out of all the other weapons researchers in the room. Their collective anger heavily implies this is not unusual for him.
    Researchers: STOP IT, CARL!!!
  • In Star Trek Into Darkness, John Harrison invents a binary explosive so powerful that mixing the pill-sized solid tablet into a drinking glass of liquid blows an entire building sky-high.

    Literature 
  • Warhammer 40,000:
    • Justified at the end of the Ciaphas Cain novel "Caves of Ice". While the bombs planted were only intended to create a crater in the ice to trap an enemy vehicle, they blow up in a gigantic fireball because the caves below were flooded with fuel, effectively creating a giant fuel/air bomb, to the delight of the resident Mad Bomber chief sapper. The resulting explosion is so large that a ship in space is hit by the shockwave.
    • Dark Heresy's take on promethium (an all-purpose chemical fuel used in everything from flamethrowers to tanks to Titans) is that 500 million liters of the stuff (the carrying capacity of between 1 and 2 modern supertankers) results in an explosion more than ten times the size of the Sun.
  • In the first Deathworld book, Jason promises one person several grenades made from "solid ultranite", powerful enough to blast open a large warehouse. He also promises the pocket lighter in which they are kept.
  • In the Lensmen series the standard go-to explosive is "duodec" ("duodecaplylatomate"). Large stores can crack the crust of a planet, and "small" pellets are used to destroy a mansion (and outbuildings) without damaging nearby residences. However duodec does quickly become obsolete for anti-spaceship work as the setting is the Trope Namer for the Lensman Arms Race trope.
  • The Halo novel Ghosts of Onyx combines this with Chekhov's Gun when a human superbomb known as a NOVA bomb is discovered by the Covenant and brought to a planet. The NOVA Bomb, as (quite proudly) described by one of the admirals that oversaw its construction, is nine nuclear fusion warheads encased in futuristic armor. When detonated, it compresses the force of the explosion to the density of a neutron star, which boosts its yield a hundredfold. When detonated in a planet's orbit, it scorches a fourth of the planet, blows up the planet's moon, and causes massive storms across the rest of the world, wrecking it. When actually detonated on a planet, Earth-Shattering Kaboom results. Fittingly, the bomb was designed to be snuck aboard the Covenant's home base, High Charity, and detonated there, so the UNSC wasn't taking any chances.

    Live-Action TV 
  • Doctor Who: The Seventh Doctor's companion "Ace" became (in)famous because she was a teenage Demolitions Expert who brewed her own variation of nitroglycerine, "Nitro-9". The "9" in the name was because the amount that could fit inside of a shaving cream can could create a small earthquake rated 9.0 in the Richter Scale if set off.
  • Repeatedly defied in MythBusters. They've tested many, many explosive myths, and the real-life blast is almost never as impressive as the original myth states.
  • Star Trek: The Original Series: In "Whom God's Destroy" Captain Garth somehow manages to create bombs which resemble tiny crystals in canister which he can easily carry. He describes them as the most powerful explosives in existence (making them greater than Photon Torpedoes and other weapons that utilise antimatter), claiming the whole canister is enough to destroy the whole planet. Whilst Garth is insane, all the evidence suggests he was right as blowing up a single crystal creates an explosion that shakes the Enterprise whilst it's in Orbit.

    Video Games 
  • In Command & Conquer 3: Tiberium Wars, Liquid Tiberium is made out to be enormously explosive, with a warhead sized bomb said to provide a yield '10 times greater than a 200 megaton thermonuke', on top of chain reactions if detonated correctly - and it does live up to that claim In-Universe by creating an explosive cloud stretching more than a thousand kilometers into spacenote  while the chain reactions set off a quarter-World-Wrecking Wave. It also provides the page image.
  • Double Subverted in the penultimate level of Eternal Darkness. Michael Edwards, a Canadian firefighter who has some C4 explosives he's been using to control fires in the Gulf War is prompted to use it to destroy the pillar of flesh by a mysterious voice. However, he realises it's nowhere near powerful enough to do the job. Luckily, the same enchantment spell that's been used on weapons the entire game turns out to work just as well on modern weaponry and bombs; the resulting explosion takes out the entire underground city.
  • Several Mortal Kombat fatalities utilize in-game explosives, only multiplied by a factor of 10 to 20, which apparently upgrades their explosive potential to Earth-Shattering Kaboom levels.
  • In XCOM 2, some missions involve blowing up alien facilities. In order to do this, the player must have one of their units plant an "X4 Charge" before clearing out. The charge is a fist sized bomb that's planted somewhere inside the building, but the ending cutscene of the missions always show the entire structure exploding in a fireball worthy of Hollywood and being levelled to the ground. Word of God is that this even includes an unseen underground section of the buildings.

    Web Comics 

    Western Animation 
  • SpongeBob SquarePants: Played for Laughs, in "Dying for a Pie" when the bomb disguised as a pie finally goes off at the end of episode, the explosion is so great we see stock footage of an underwater A-bomb going off and the blast was large enough to destroy the entire city.
  • "Promethium-X" from the symbiote arc of Spider-Man: The Animated Series - a tiny chip, when sufficiently heated, produces an enormous explosion. The catch is that its half-life is measured in days, after which it becomes lead.
  • Total Drama loves to play these for laughs.
    • In Total Drama Island, the first challenge all the contestants had to go through was high dive off a cliff into the water below. When Owen finally takes the plunge, he hits the water with enough force that the water explodes halfway up the cliffside and creates a tidal wave that wrecks the contestant watching on the beach.
    • Izzy is a pyromaniac who loves causing explosions when put anywhere near a detonator. When her team was tasked with building a bonfire, Izzy scrounges together some natural materials (mostly tree sap) into the shape and size of a basketball. As soon as she tosses it into the smoldering embers of her team's bonfire, the flames shoot up into the sky with enough force to gently push away Chris' helicopter. This also attracts the attention of the Royal Mounted Canadian Police, who were tracking her down for going AWOL.
    • In Total Drama Action, one of the challenges for the war film episode involved using controlled explosives to decorate a base. Duncan managed to use the right amounts to create an intimidating giant skull with the paint. Izzy goes overboard and creates a giant green paint explosion that can be seen from the sky. Chris and everyone else around the explosion was left covered in green paint, their hair blown back and locked in the direction of the explosion.

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