[[quoteright:350: [[Film/EventHorizon http://static.tvtropes.org/pmwiki/pub/images/EvenHorizonEngine_3699.jpg]]]]
[[caption-width-right:350:Even astronauts can forget to stand behind the yellow line.]]

The captain of the CoolShip shows off the fantastic power source of the vessel to others, usually hapless passengers (and of course us, the audience,) to impress them with just how powerful indeed the ship is. Included will be dialogue of how [[WhatCouldPossiblyGoWrong dangerous it is]] to be exposed to such terrible energies, and that were it not for the radiation suits/visor/lead glass that were provided to gaze through, it would have otherwise been certain death to merely look on such elemental fury.

Related to TakeOurWordForIt, a PerilousPowerSource can be used to compensate for lack of budget or SpecialEffectsFailure.

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!!Examples:

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[[folder: Anime ]]

* Done in ''LastExile'' when Dio wants to see the power source of the ''Silvana''
* During ''OutlawStar'' the ship's computer, Gilliam, helps the new crew activate the XGP's engines during start up.

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[[folder: Comic Books ]]

* One member of the ''ComicBook/{{Legion Of Super-Heroes}}'', Element Lad, was left the only one conscious when they were all cast into a different universe, and seems to have this reaction to the energies of the forming universe, terrified of looking out the windows of their spaceship. After he sends the others back but is left alone in the new universe without the ship, [[spoiler:he spent billions, if not trillions of years simply floating through space- his powers allowed him to survive by transmuting his body and the air that came with him. He watched ''stars come into being and die'' several times before he realized that was what was happening. Eventually, growing lonely, he drifted down to a planet and started to use his powers to help life come into being... and by the time his teammates came along, the entire galaxy was essentially embroiled in an ongoing conflict between the Progeny, the species he was currently using as his instrument to shape the evolution of the local races, and the "variant" species which he'd decided didn't fit into that shape.]] When his teammates finally met up with him, his way of thinking was [[BlueAndOrangeMorality completely unrecognizable]]. [[spoiler:According to Brainiac 5, he's not necessarily mad or sane or good or evil anymore- he's simply living in an incomprehensibly larger time scale, from which the eyeblinks that are mortal lifespans simply don't matter, and the galaxy is his petri dish because he doesn't need to care about the feelings of the beings living there- regardless of what the germs in the petri dish think of him while they're alive, regardless of anything, they'll be dead before he blinks one way or the other.]]

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[[folder: Film ]]

* ''Film/ForbiddenPlanet'', where the scientist even compares the source of the Krell core to {{Medusa}} ("One cannot behold the face of the gorgon and live!").
* The Creator/{{Disney}} version of ''Film/TwentyThousandLeaguesUnderTheSea'', from 1954 - when Nemo offers a big riveted visor and chestplate to Messr. Arronax, before hiding his own face in his arm and opening that big lead door to the atomic reactor. To be fair, ''Film/ForbiddenPlanet'''s writers probably didn't rip off this movie - [[TheFifties '50s]] magazines were no doubt full of scenes of scientists in goggles peering at atomic piles...
* The Russian engineers of ''K19TheWidowmaker'' have a bad experience in their gorgon gaze; forced to enter the reactor compartment to prevent a meltdown, they pay the price of close-up and unshielded work with an atomic reactor. A sad and [[TruthInTelevision real-life]] example of why working with such forces in person rarely comes to a happy ending.
** They did have safety suits... but they were designed for ''biochemical'' work and provided little, if any, protection from radiation.
* ''Ice Station Zebra'' has a scene where submarine captain Rock Hudson shows Russian agent Ernest Borgnine the ship's nuclear reactor. "Where is reactor?" he asks. "Under you," our captain answers, and shows how Ernest is kneeling on a thick hatch with an equally dense glass viewport to show red hot reactor action.
* ''Film/EventHorizon'' might be an example of this, in having an expository scene in the spike filled, ominous Engine Room Of Doom - that is [[spoiler:utilizing a motive energy that opens the very doors of Hell itself]]. That pretty much trumps any 92 suns worth of whatever, Doctor Morbius.
* In ''Film/{{Sunshine}}'', the ''Icarus'' ships have a special Sun-gazing room where the crew can sit and do exactly that. We (and the crew) are told that the filters are set at maximum or near-maximum capacity, and the sunlight is already blinding white. To release the filters would [[ChekhovsGun undoubtedly be fatal to whoever stood there]]. One crewmember has taken to donning a pair of sunglasses and turning the filters down as low as is safely possible (apparently in the visible-light spectrum only, as he doesn't have a noticeable tan) and describes it as a very spiritual experience.
** It's uncomfortably noted by other crewmembers that this obviously-slightly-crazy person is actually their ship's psychiatrist.
* In the climactic scene of ''Film/RaidersOfTheLostArk'', Indiana and temporary love interest Marion are tied to a stake in the middle of things as the Nazis are about to open the Ark of the Covenant. Indy tells Marion not to look at whatever power or entity comes out - sound advice, as it turns out, as nasty, {{Nightmare Fuel}}ish things happen to the Nazis, including one guy getting his ''[[ImMelting face melted off]]''.
* ''Film/{{Star Trek II|The Wrath of Khan}}'' includes a scene wherein a critical piece of the ship's engines is sealed in a small room. Anyone entering the room will be subjected to lethal radiation [[spoiler: as demonstrated when Spock sacrifices himself to repair the warp drive.]]
** The novelization makes this apparent design flaw ''slightly'' more understandable: ordinarily the room ''wouldn't'' be lethally radioactive (and of course ordinarily the engineers would have time to put on a proper protective suit). It's just that radioactive gasses are currently leaking into the sealed small room due to a breached pipe.
* 2013's ''Film/{{Star Trek into Darkness}}'' makes reference to ''Film/{{Star Trek II|The Wrath of Khan}}'' only [[spoiler: this time Kirk is the one who exposes himself to lethal levels of radiation while Spock remains safe outside (and wholly ignorant of Kirk's intentions and actions until it's far too late to do anything about them).]]

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[[folder: Literature ]]

* Rhysling, the blind singer of Creator/RobertAHeinlein's ''Literature/TheGreenHillsOfEarth'', loses his sight this way - he peers past the baffles of a rocket's reactor and is then blinded by Cherenkov radiation. Ouch.
* In the book {{Halo}}: The Fall of Reach, Captain Keyes is given a tour of his new ship's state-of-the-art fusion reactor, the most powerful in the fleet.
* In one of the ''{{Nightside}}'' books, John Taylor finds out that one of his friends is being used as a powersource for the local power plant. Naturally he does something drastic.
* In Creator/AlanDeanFoster's novelisation of the animated ''[[WesternAnimation/StarTrekTheAnimatedSeries Star Trek]]'' episode "One Of Our Planets Is Missing", one of the Enterprise's nacelles is constructed internally of antimatter components; restarting the warp engines requires walking down a narrow pathway suspended magnetically down the center. Not exactly the same thing but, true to the idea that the power source of the ship is made of some VERY dangerous stuff.

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[[folder: Live Action TV ]]

* ''Series/DoctorWho'':
** In "The End of the World", the guests have come to watch the destruction of Earth when the sun goes nova. Shield failure due to sabotage proves that even before the actual explosion, the sun is giving off tremendous energy enough to kill an unprotected onlooker.
** Looking at the Heart of the TARDIS turns you into a god, but you will die after even a minute or two. Fortunately, the Doctor had some spare lives.
** In "Midnight", xtonic radiation prevents the Doctor from looking at the planet's landscape for more than a few seconds.
** The Eye of Harmony is a friggin' ''black hole'' kept in juuuuust such a balance (''that's'' the "harmony" part) that it can be used as a power source. Just leaving it exposed causes time distortions, and being near it for too long subjects you to a BodyHorror FateWorseThanDeath, and that's when it's ''working right.'' Screw with it and the balance is thrown off and the UnrealisticBlackHole could become a ''regular'' black hole, in which case, it's adios for the nearest solar system. Squish!
* Pretty much any episode of ''Series/StarTrekTheNextGeneration'' that showed Main Engineering, considering that the Warp Core contains {{Antimatter}}. A few episodes depict the results of a Warp Core Breach, which essentially converts the entire ship (and everything nearby) into a rapidly expanding ball of white-hot energy.

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[[folder: Mythology and Religion]]

* GreekMythology: Perseus needed a mirror to look safely at Medusa, one of the original Gorgons, without her turning him to stone with her gaze.
* Similarly, [[Literature/TheBible Moses]] only gets to see God's back, since looking Him in the face would kill a mortal man. Moses comes back sunburned.

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[[folder: Real Life ]]

* Staring at the sun is a bad idea, at any time. Most of the time people instinctively know not to do this (as any ancestors who made a habit of it went blind) but during an eclipse the sun is different, so our gaze tends to be drawn to it. While the sun is ''totally'' covered by the moon, it's fine to look at it.
** Please note that this safe time is only a few minutes at most and can be as little as a few seconds.
* Arc welding without a safety helmet can cause severe eye damage, even if you aren't looking directly at the arc.
** Then again, it is not what you see that is dangerous - it is what you can't see, the UV radiation. A better example is gazing into a DVD burner's laser - this time, it is the actual visible light that ends up burning its ones and zeros into your retina.
* Heysham Nuclear Power Station in the north-west of England has a visitor's centre, and part of the tour includes a viewing gallery (through some very thick glass) looking onto the top of the reactor housing (albeit, the reactor itself is sealed and shielded, and visitors are not allowed to view when they are changing out fuel rods as the top of the housing has to be open to load the new ones in). It's rather impressive to look upon.
** Actually, the bit you look on from the (now closed) visitors' gallery is the charge hall, and is perfectly safe, and the radiation is barely above background (as I know from walking around on it while wearing a dose meter). The reactor itself is beneath several metres of concrete and steel shielding. It's refuelled by attaching a shielded hoist to the top of the pressure vessel, so even then the radiation barely rises, visitors probably weren't allowed to look more for the commercial safety of British Energy's refuelling process. \\
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Now the cooling ponds are a different matter. Radiation levels are slightly elevated in there, and you can look through 5m of boronated water at spent fuel elements that glow purple in the dark, and would give you a lethal dose in less than a second were you to go anywhere near them

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[[folder: Web Comics]]
* The White Hole energy used by ''Webcomic/LadySpectraAndSparky'' is said to be highly unstable and radioactive. And indeed, [[spoiler:exposure to the unshielded energy killed Lady Spectra's husband.]]
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