It's not a death ray. Jack:
But it's a ray, right? Henry:
That causes instant death? Henry:
How is that not
a death ray?
The Death Ray
is an old Speculative Fiction
staple, probably cliché
or a Discredited Trope
by now, but the little kid in all of us would kill
for a Death Ray. In function it's a Ray Gun
that causes death
(It doesn't actually shoot out Death
, awesome as that would be); whatever the ray hits, dies — instantly and without question
. It can do this via disintegration
, somehow draining the target's life force
, rapid calcination
or some other method. When scaled up, it becomes a Wave Motion Gun
Visually, it's probably going to emit a red beam
and look scary
compared to a hero's clean chrome Ray Gun
(which, of course
, just makes you sleep
). It can vary from your garden variety Disintegrator Ray
because the Death Ray usually causes inanimate things to explode but humans to keel over dead. Why don't humans explode? Probably because it would raise the flick into R or NC-17 status (plus it costs a ''ton'' more
in Special Effects
compared to a cheap ray effect). In effect, it is the Designated Villain
of retro Sci-Fi
weapons, much worse than its "little brother" the Agony Beam
Anyone using it is probably a villain with his own villain store discount card
, a (Mad)
Scientist who just happened to think making a Death Ray would be cool
, or space aliens, death bots, or what have you. It's unlikely for an Evil Overlord
's henchmen to be armed with these, as he's more likely to keep the only one
Sci-Fi villains are not the only ones who can use a Death Ray
— many an Evil Sorcerer
or other Fantasy
villain will have a spell, artifact, or other piece of magical phlebotinum that basically amounts to one of these.
Death Ray will be more akin to the Doomsday Device
, clock and all, and will only work twice: Once when test fired, to prove it works to the UN member countries; and another to annihilate the Red Shirt Army
, before being destroyed/stopped by the heroes.
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Anime and Manga
- Mobile Suit Gundam has the Solar System, effectively a futurized version of the Archimedes mirror concept: it uses tens of thousands of giant mirrors, all coordinated by computer, and has enough power to blow a chunk out of a space fortress made out of solid rock. Mobile Suit Gundam 0083 introduces the improved Solar System II, which has much better control software and therefore doesn't require as many mirrors to achieve the same effect.
- This trope receives a Shout-Out in The Crimson Badger, a Redwall fic, of all places, where Urthblood idly ponders about the possibility of creating a giant focusing lens that could incinerate an enemy army after having seen some children burn insects with a magnifying glass. He never comes around to building one, however.
- According to the Friendly Four from the Darkwing Duck fanfiction Negaverse Chronicles, the "I Have a Death Ray" plans are one of the top three most common super villain schemes they have to deal with, along with "Take Over The World By Collecting a Resource" plan and "Let's Make a Shrink Ray."
- Gyro later builds what he calls an "Atomic Death Ray."
Films — Animated
Films — Live-Action
- The Frickin' Laser Beams on top of the alien spaceships in 1953's The War Of The Worlds. They actually are referred to in the movie as Death Rays.
- Quite possibly the most iconic Death Ray (and frickin' laser and Wave Motion Gun while we're at it) capable of an Earth-Shattering Kaboom, not just the size of an entire ship but a small moon and in the hands of the ultimate baddie is the Death Star from Star Wars.
- The film Danger Death Ray had a death ray, briefly. But it was mostly just vaguely European guys, some guy named Bart Fargo, and a catchy theme song.
- Remember, it's a peace loving death ray.
- In the Mystery Science Theater 3000 episode featuring the movie, Tom Servo builds one, proclaims it's for peace... then proceeds to blast Crow with it because he was right there.
- It Came from Outer Space (1953). The protagonist is uncertain whether he should believe the aliens' claims that they're simply trying to repair their spaceship so they can leave Earth. After a deadly confrontation with an alien guard who tries to slice him in half with a handheld Disintegrator Ray, he enters a chamber and is shocked to find the aliens assembling what appears to be a classic giant Death Ray, but actually turns out a device for powering their ship.
- In The Pink Panther Strikes Again, Inspector Dreyfus uses a Death Ray to hold the world for ransom. It disintegrates too cleanly for Dreyfus's tastes: "I want a crater! I want wreckage, twisted metal. Something the world will not forget!"
- In The Rocky Horror Picture Show, Riff Raff has a laser "capable of emitting a beam of pure antimatter."note It's a very Family Friendly Firearm. Though seeing it's Rocky Horror, it kinda takes the family friendly idea and Crosses the Line Twice.
- Pretty much a staple in sci-fi movies since the '50s - the cheap B-movie Teenagers from Outer Space gave the invaders guns that instantly reduced humans (and dogs) to bleached skeletons.
Live Action TV
- Although rare, this is how laser pistols work in Firefly. Too bad bullets are still better (and way more common).
- The Daleks in Doctor Who have Death Rays, which were once most literal instances of this trope - any living being struck by it goes into X-Ray Sparks and dies screaming, then and there, wheareas the rays never caused serious damage to property (missing a target results in a minor spark burst.) However, as of "The Stolen Earth," a small group of Daleks showed that they were more then capable of destroying a building, although they did have "Maximum EXTERMINATION" setting on. The result was an impressive boom.
- The Dalek extermination effect has gradually got more elaborate over time as special effects improved. At first you simply saw an emittor extend from the Dalek gunstick in close-up, followed by a quick cut to the victim as the whole screen goes into negative. Victim screams and drops dead. Things got gradually more elaborate over the years, especially when it became possible to add ray effects to the screen, but the X-Ray Sparks effect wasn't introduced until the last pre-2005 appearance, "Remembrance of the Daleks", where it was quite elaborate for the time and budget.
- In their very first appearance, the Daleks do shoot to paralyze. Once. This was before they got on their EXTERMINATE kick. But after that one incident in the second serial of Doctor Who ever, Daleks do shoot to kill.
- There's been mention that the Daleks' weapon could kill instantly and painlessly, but they deliberately dial down the power of their weapons depending on the species encountered so it takes longer for said being to die. Yes, the Daleks so freakin' evil they have a Death Ray and Agony Beam in one convenient package!
- They did explain what a Dalek neutralizer ray does, and why nearly everyone hit with this screams in agony as they die. The Doctor called it "internal displacement": Your internal organs are scrambled, literally. Now imagine what would happen if Doctor Who stopped trying to be family friendly with the special effects...
- Though the fact that the ray can be conducted through water suggests it's actually some kind of electron particle beam.
- The Daleks do shoot to stun in Planet Of The Daleks.
- In Asylum of the Daleks, the Dalek ray, complete with iconic sound effect, is used to stun the Doctor to bring him to, basically, Dalek city hall. The same presumably goes for Amy and Rory.
- Death Rays are actually extremely common in Doctor Who. Hardly an episode goes by without some innocent being disintegrated or otherwise killed by a bad guy, usually with some type of energy weapon.
- The Varon-T Disruptors in Star Trek: The Next Generation were a "modern" Death Ray, they disintegrated the target like a normal disruptor... but did so slowly, causing tremendous pain. Only five were ever produced before the Federation banned them.
- And a small note: even though they don't usually use it as such, the normal hand phaser in Star Trek does have a disintegration setting, which would make it a Death Ray as well.
- Seen in the Star Trek: Voyager episode "Tinker, Tenor, Doctor, Spy" with the Photonic Cannon, a Weapon of Mass Destruction from the Doctor's daydreams powerful enough to take out a Borg Sphere in one shot. This is later successfully used to bluff aliens who thought it was real.
- In "Future's End," Braxton's got a sweet Disintegrator Ray. Straight out of TOS, anything hit by it just sizzles and is no more, without even the slightest damage to the surroundings. Again, though, Federation phasers are capable of this on max setting.
- Naturally given that it's a homage to cliched sci-fi, Mad Scientist Dr Chaotica has to have his fiendish Death Ray in the holodeck program The Adventures of Captain Proton.
Chaotica: "But my greatest achievement is there. Behold: the Death Ray."
Arachnia: "Oh, it looks like a formidable weapon."
- Chaotica's Death Ray does prove deadly to other-dimensional photonic beings who assume the holodeck is a real world (they've never heard of biological life).
- The Klingon version of the disruptor is definitely a Death Ray; the disintegration special effect is pretty horrific, as Star Trek goes. (No, it's not the aforementioned Varon-T.)
- Additionally, Andorian phasers have no stun setting.
- Neither do Romulan disruptors.
- Eureka had these.
Carter: It's a ray that causes immediate death! Why can't you just say "death ray"?
- MythBusters examined whether Archimedes created a death ray using many mirrors focused on a single point. Three separate tests came to the same conclusion: Archimedes didn't. At most, the Greeks likely used the light reflected from the mirrors to dazzle the eyes of the incoming Roman invaders.
Jamie: Something seems to be wrong with our Death Ray. I'm standing right in it, and... I'm not dead yet.
- The Shadows' ships in Babylon 5 had a beam that could cut a younger race's warship in half. Lengthwise. And then make it explode.
- A That Mitchell and Webb Look sketch featured a Mad Scientist demonstrating his "Giant Death Ray", along with a "Giant Laser-fitted Armored Scorpion Of Death" - turns out his name is Professor Death, and he's horrified at the President's asking if these (obviously lethal) machines might have military potential. His intention is for the Giant Death Ray to be the world's first bar-code reader — or, with the power turned up, the world's first laser eye surgery device. The scorpion's tail fires only "helpful bullets." They then of course push the idea to silliness: "No! I created the Doomsday Bomb to help mankind, not destroy it!"
- Sheldon from The Big Bang Theory tried to build a "sonic death ray" as a child. Apparently all it did was annoy the dog.
- In an episode of "The Saint" a defecting Soviet scientist is murdered with his own weapon for the secrets of the death ray he has just invented; at the end of the episode, the killer runs away with the only working prototype; he trips, falls, drops the device, the beam accidentally activates, and....
- The Murdoch Mysteries episode "The Tesla Effect" goes full Teslapunk (including an appearance of the man himself), with a Victorian microwave weapon.
- Doe Deer by Crystal Castles consists solely of Alice Glass screeching "Death Ray" over and over.
- "Weird Al" Yankovic's "Slime Creatures From Outer Space" will "zap you with their death ray eyes / blow you up real good!"
- A cartoon Charles Addams did for The New Yorker shows two men standing at the upper-story window of a patent office, one of them holding a futuristic gun which is plugged into a wall socket. The caption reads: "Death ray, fiddlesticks! Why, it doesn't even slow them up."
- In the first Destroy The Godmodder this was used many times against the godmodder.
- By newbies, and needless to say, not a single death ray made connection with its intended target.
- In Mortasheen, the creature Golgotha has a literal version of this, with its stare being able to kill other creatures, albeit somewhat slowly.
- Warhammer 40,000 It's played fairly straight with melta-weapons, a sort of complicated weapon that has a simple effect, the target is reduced to slag as the air around it hisses and explodes.
- Members of Task Force: VALKYRIE in Hunter: The Vigil can requisition a weapon that is, essentially, the Medusa Particle Beam Cannon (see below). It takes a lot of energy to run, but does a hell of a lot of damage.
- Also from World Of Darkness, we have the fanmade game Genius The Transgression. Since it's about Mad Scientists, it's only to be expected that death rays are an easy-to-make, commonly occurring Wonder.
- The Finger of Death spell from Dungeons & Dragons is essentially the magical version of this.
- Save vs. Death Ray!
- Not to mention Disintegrate :)
- Beholders, catoblepae, and many other monsters produce their own death rays naturally. And the traditional pistol-shaped kind show up in the 1e AD&D module Expedition to the Barrier Peaks and the D&D Blackmoor adventures.
- GURPS: Ultratech has a slew of them from a half dozen weapons that disintegrate the enemy to Mind Disruptors that make the target's body want to die.
- Disintegrator Guns from Rocket Age will usually straight up kill a target unless the user rolls badly. The same holds true for Ancient Martian Ray weapons.
- In Broken Age, Vella ends up reforming a downed spaceship into one of these to battle Mog Chothra. It turns out that the reason Mog Chothra was so hard to kill was that it was really Shay's spaceship.
- In Master of Orion series, the Death Ray is the signature armament of the Guardian of Orion, and can only be obtained by beating the Guardian and looting the ruins on the planet below. (Or trading with/stealing from/conquering someone who has.)
- In the second game, successfully capturing an Antaran battleship and researching its equipment can also yield Death Ray tech.
- And of course the alien ship in Fallout 3. Its Death Ray can be fired towards Earth and cause a massive mushroom cloud. Not to mention that the Lone Wanderer used it to blow away the other alien ship.
- In the Destroy All Humans! series, the Death Ray is the basic weapon of your Flying Saucer. It fries human targets real good.
- NetHack's wand of death sends a ray of death towards an enemy who will instantly die except under a few extenuating circumstances (the ray misses, the target has magic resistance or reflects the ray, or is polymorphed into an undead or demonic creature, or is Death). The wand of disintegration has similar results if the target isn't immune. (Important safety tip: don't shoot either of these wands at yourself or at a wall near you.)
- A death ray appears in the final mission in Advance Wars 2: Black Hole Rising. Ironically, it can't kill units, only reduce them to 1HP.
- So more of a Near Death Ray then.
- Considering units have 10 HP, I believe the proper term is Decimation Ray.
- Surely a decimation ray would reduce their HP by 1 not to 1?
- The enemy spell "Calmness" ("Repose" in the Updated Re-release) in Final Fantasy VI is a beam of pale blue light that descends on a character, and kills him instantaneously regardless of defenses.
- You can buy and mount one of these on your plane in Raptor: Call of the Shadows. It's one of three laser weapons with instantaneous blast (the others are a laser turret and a twin laser).
- In EarthBound, Jeff (one of the heroes) gets a Death Ray as a weapon.
- The Marathon trilogy features the Trih Xeem, the 'early nova device' actually used by the Pfhor at the end of Marathon 2. It seems to do what the name implies, cause a star to go nova which would wipe out pretty much anything of consequence in the surrounding system (the planets, moons etc would probably still be there, just with their surfaces pretty much scoured and then left uninhabitable). It is implied that the Pfhor, being the nice caring slavers they are, give this weapon to all their main battle fleets for use as a last resort in hopeless military situations.
- In The Legend of Zelda, Link or Zelda receive Light Arrows at the end of many games. These act as death rays, killing any monster in one hit, while shattering inanimate objects.
- In World of Warcraft players who learn the engineering skill can make a 'Gnomish Death Ray', which drains the user's health before firing. It's not a guaranteed kill, but being hit by it hurts, to say the least.
- The sweet, sweet (if power-ravenous) Gluon Gun in Half-Life, called the Egon in the game files.
- Nexus: The Jupiter Incident has one example. When the Vardrag-Noah alliance invented the fortress shieldnote to protect their supply ships, the Gorg answered with the Siege Laser: a giant Wave Motion Gun affixed onto a battleship. It requires three other ships to assume a triangular formation around the battleship and provide power but when it does fire, the results are very painful for the target.
- The Gorg later give the technology to the Noah colonists, when the true culprits of the Cataclysm are revealed. It proves to be the only weapon capable of damaging the Locust Queen.
- Being based on, well, The War of the Worlds, Jeff Wayne's War Of The Worlds has the Martians using plenty of these, from classic heat rays to masers to x-ray versions.
- The mod Unreal4Ever for Unreal Tournament has a comparatively small laser pistol that shoots a continuous, hitscan stream of energy. Killing an enemy with it will cause their flesh to boil instantly, leaving behind only a charred skeleton. Can be upgraded by picking up more of the same gun; at its most powerful it really embodies this trope, as casually moving the beam across an enemy will kill them almost instantly.
- Future installments of the series would provide the link gun, whose alternate fire does pretty much the same thing as the above weapon.
- In Sunrider, Veniczar Arcadius' flagship, the Legion, comes equipped with one of these.
- Blood II: The Chosen features a secret weapon with this exact name. It looks a lot like a rifle carried by Little Green Men in 50's Science Fiction stories, and it fires hitscan green laser beams that reflect off most surfaces. Its Secondary Fire is nothing to write home about, but the very efficient primary fire makes this a substitute for the Tesla Cannon (whose primary consumes 2 chemical battery units for a slower projectile that deals less damage than a Death Ray beam, which costs one) all the same. You just have to explore very carefully to find it.
- Starcraft II's Colossi fire these in pairs, sweeping them in a line of damage for all biological units. It's called a Thermal Lance, but come on, the Colossus is a four-legged strider so tall it can be targeted by both ground and air units, we know what it is. They were sealed away in asteroids after they were used in a colonial revolt by the Protoss in a My God, What Have I Done? moment.
- The Stone Zealot, a giant stone statue of a Zealot, fires the exact same thing, though now called Eye Beams.
- The Squiggoth in Dawn of War has a Zzap gun mounted on its back that does huge damage to any unit including vehicles. It's a shame that like all orks, you stand a better chance of hitting something with by grabbing it by the barrel and taking a swing.
- Planescape: Torment has the Mechanus Cannon, which is a huge extraplanar gun that fires through a portal to vaporize enemies near you.
- Girl Genius:
- It's almost a rite of passage for an evil Spark (and a number of non-evil ones) to make a Death Ray, like the following exchange shows from this strip shows.
What about a good death ray? That'd be perfect! Gil: I don't have a death ray!
So what you're telling me is that you
—Gilgamesh Wulfenbach—the person next-in-line to the despotic, iron-fisted rule of the Wulfenbach empire
—have got no weapons
powerful enough to destroy those things. That's just great
. What kind of an evil overlord are you going to be
, anyway? Gil:
Apparently a better one than I'd thought...
- So he started with his lighning generator project and scaled it up. And then, yes, built a big death ray.
- Agatha herself seems to have a fascination with death rays if going by the number of times she can be cited using her immediate materials wishing for/building one. Her current one shown here...well, if you're looking at the damage to the wall, you're not looking far enough.
- One strip of Casey and Andy features a ray gun called the Kill-O-Mat. While this one doesn't work, the Casey Vaporiso-Annihilatomat does wonders.
- Gunnerkrigg Court: The Enigmarons from Dr. Disaster's space battle simulator possess a Death Ray that's somehow able to target every capital city on Earth simultaneously. It also explodes spectacularly when Annie knocks it over.
- Neglected Mario Characters mainstay Fred the Spanyard (sic) uses the attacks "Deathray," "Ray of Death," & "Deathly Deathray of Deathly Deathness."
- The "Is There In Roof No Beauty?" story arc in The Inexplicable Adventures of Bob! involved Space Pirates trying to obtain some Unobtainium called borfomite to power their unstoppable Death Ray. They hit a small delay when they finally got the borfomite but realized it needed to be combined with caramel, which they didn't have.
- Narbonic has Dave get killed by one. Why did you do that, Dr. Narbon? "I had a death ray." But it's more complicated than that...
- In S.S.D.D the Tower of Babel almost counts as the planetary version, as it's a skyscraper sized maser cannon that can roast everyone in an anti-missile defense base (though the base itself appeared intact). The way things are going it's likely to be destroyed before it's used to destroy another country.
- One Packrat strip features the MAD-Ray (Memorymoog Acoustic Death Ray).
- In Schlock Mercenary, LOTA gains control of one of these (which was formerly known as Credomar). It shoots a laser through space-time, unblockable (well, unless you have extremely overpowered shields), impossible to run away from, and very deadly. It's also immune to Teraport-Area-Denial. Pi is the first one to figure it out.
Pi: "Hyperspace death ray" is completely logical! Credomar was built before teraports, and is too big for wormgates. That means it had to be fired where it was built. Now...since it's not sharing the system with anything worth attacking or defending, it was never meant to be fired at local targets.
Ebby: Okay...I guess firing through hyperspace makes sense, assuming it's even possible. But...death ray?
Pi: It sure isn't gonna launch prayer beads.
- Norman of Dragon Tails at one point attempts to use an ion cannon apparently capable of wiping out an entire city to destroy Enigma. It, of course, does not go as planned.
- Dr. Horrible converts a Stun Ray into a Death Ray to use against Captain Hammer. In the end it is damaged after Captain Hammer punches him and it ends up exploding, causing Captain Hammer great pain and killing the Wide-Eyed Idealist Love Interest Penny.
- Earlier, he takes umbrage at Johnny Snow calling it a Death Ray.
- Apparently, R2D2 has a Death Ray.
- The Salvation War has an AEGIS cruiser using its radar as an improvised Death Ray against Uriel. The results are quite messy. He survives, but he doesn't have much skin left afterwards.
- It is said that Nikola Tesla actually built a prototype of a tower that could kill anything within a certain radius. For some strange reason, the military wasn't at all interested when he pitched it to them. He called it a Peace Ray, rather than a Death Ray, of course. Despite the name, it was actually closer to Some Kind of Force Field. It was supposed to create an electromagnetic bubble around an area and anyone that tried to pass through would be electrocuted to death. The idea was to deploy them around every country to create world peace by making it impossible for anybody to invade anybody else's land. Also, like nearly all of Tesla's ideas post-1914 or thereabouts, it didn't work.
- The Medusa Particle Beam Cannon, which is currently in the late stages of development and is going to be used in a field test soon, if successful, will result in the creation of what is essentially a real-life portable Death Ray.
- The MTHEL, on the other hand, has already had functional prototypes built, capable of shooting down not only missiles but artillery shells and mortar shells, feats almost no other weapon can do. Because of the precise details of how high-energy lasers work, the MTHEL wouldn't be able to kill a person easily (though it would cause serious harm) - but it can destroy small, fast-moving explosive projectiles more accurately, and less expensively per shot, than any other current weapon.
- Neutron Bombs are essentially nukes that emit more Death Rays and slightly less Kaboom than their more conventional cousins.
- For the technically minded: about 50% of the yield is in the form of high energy (20MeV) neutrons, compared to about 5% of a standard thermonuclear bast which produces about 5% of its yield as thermal (2MeV) neutrons.
- Often misunderstood as an antipersonnel weapon that would kill humans but leave buildings standing, the basic 1kT neutron bomb design would destroy non-hardened structures in a mile-wide blast. All unshielded humans within a two mile wide area would receive a lethal radiation dose. A conventional nuke of the same size would still kill everyone in a two mile wide area, but by crushing and incinerating them. An airburst neutron bomb might not level a city, but would still do a vast amount of property damage.
- The original use for the neutron bomb was against neither cities nor people but tanks. Tank crew were well shielded from nuclear blasts and radiation, but a sufficiently high dose of highly penetrating radiation (such as high energy fast neutrons) would both incapacitate and fatally irradiate the crew, but also render the tank shell dangerously radioactive and therefore unuseable. Modern tanks are far better protected than those of the 60s, and a neutron bomb would have to be detonated so close to them that using conventional nuclear explosives would be just as effective, if not more so.
- The Pentagon's nuclear warfare strategy moved away from nuking tank formations some time before tanks became largely immune to these weapons, simply because herding an armour column into a nuclear killing zone is pretty impractical even if it were politically and ethically acceptable to make use of battlefield nukes.
- Large particle accelerators can generate some impressively powerful beams, which would act like death rays if anyone wandered into the path. Luckily for them, the beams are usually kept in vacuum chambers, confined by powerful magnets. The only exception is when it comes time to turn off the beam, when it gets "dumped" into something so that it doesn't ravage the accelerator when the magnets come down. For the Large Hadron Collider, each of two beam dumps must be able to absorb 362 MJ of energy in 90 microseconds, for 4 TW of power. Since that would blow a hole clean through the tens of meters of metal usually used for that purpose at lesser facilities, engineering the LHC beam dumps was something of a challenge.
- Who the hell hasn't tried to invent a death ray? Pretty much no one, it seems. Tesla! Archimedes! A bunch of crackpots!
- Two French chemists named Pierre Joseph Macquer and Antoine Baume made a "solar death ray" in the 1750s, using a concave mirror of mercury-coated glass to melt grains of platinum in 1758 (which has later been duplicated with large lenses).
- During World War 2, when German communications concerning the V-weapons were intercepted, British scientists viewed with deep suspicion Hitler's references to a "devastating weapon with which we ourselves cannot be attacked". The actual weapons referred to - early pulse-jet cruise missiles and ballistic rocket missiles - were several guesses below "death rays" on the scientists' list of suspects.
- Another ray-weapon of World War II vintage which can and will kill something which is organic is the ubiquitous radar. If the radar waves (which are actually microwaves) can be focused on an organic target, they can fry it quickly. In normal conditions, radar waves are less focused and do not penetrate metal due to the way they work and do not have enough energy to kill, but very large radar installations may be very dangerous for their crews and anyone in close proximity.
- Strangely enough the development of radar in Britain was spurred by this trope. In the 1930's the Air Ministry was bombarded with crackpot ideas for developing death rays that could be used to destroy planes or at least kill the pilot. Eventually the Air Ministry offered a public reward of 1000 pounds for anyone who could invent a death ray that could kill a sheep at 100 yards. At the same time discreet inquiries were made to two scientists, Robert Watson-Watt and Arnold Wilkins, as to whether such a weapon was indeed possible. The scientists easily proved otherwise, but in order to be helpful to the Ministry said that using radio waves to detect approaching aircraft was theoretically possible. Their paper arrived just in time to be considered by a committee on the subject of air defense, and the rest is history.
- Lasers. Most aren't powerful enough to really count as death rays, but you really wouldn't want to stand in front of something like the Nation Ignition Facility's 2 megajoule laser system.
- Project Excalibur, a Cold-War era X-ray laser satellite design which would have been powered by a detonating small nuclear bomb within its core. Nuclear bombs put out a lot of X-rays, so the Excalibur was simply a sphere of mirrors which could individually aimed to take out dozens of Soviet nuclear missiles in one fell swoop with copious amounts of Beam Spam.