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I have a fan, to keep me cool.

I can sometimes explode, but that's very rare.

I can show you what you want to see, when you want to see it.

Some say I am magical, some say I'm just science.

What am I?

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closed as too broad by Sconibulus, Ankoganit, Gamow, Beastly Gerbil, user58 Dec 24 '16 at 19:26

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    $\begingroup$ I hope Rubio and I have both failed to guess what you have in mind. Both our answers seem (to me) to fit pretty well, but in either case this isn't really a riddle, just a not particularly cryptic description of a commonplace object. $\endgroup$ – Gareth McCaughan Dec 23 '16 at 23:39
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If Rubio's very plausible conjecture is wrong, perhaps instead you are a

projector.

I have a fan, to keep me cool.

So they do. (Mostly to keep the bulb cool.)

I can sometimes explode, but that's very rare.

The bulbs certainly do. (Mostly on account of not using that fan correctly.)

I can show you what you want to see, when you want to see it.

Fundamental purpose of the device.

Some say I am magical, some say I'm just science.

Back before there were fancy video projectors, slide projectors were called "magic lanterns". But of course they are all just a matter of optics (and in some cases electronics).

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    $\begingroup$ ... demonstrating that this riddle is likely Too Broad? $\endgroup$ – Rubio Dec 23 '16 at 23:39
  • $\begingroup$ I think it may very well be. $\endgroup$ – Gareth McCaughan Dec 23 '16 at 23:39
  • $\begingroup$ No need for this now, I've already had the answer added :) $\endgroup$ – IMustBeSomeone Dec 24 '16 at 2:37
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I think you may be

a laptop computer.

I have a fan, to keep me cool.
I can sometimes explode, but that's very rare.
I can show you what you want to see, when you want to see it.
Some say I am magical, some say I'm just science.

  • Laptops have cooling fans.
  • If the battery goes into thermal runaway, the battery can potentially literally explode, effectively exploding the laptop. (Samsung's Galaxy Note 7 is banned from airplanes because this has been happening to them.)
  • Laptops display what you ask them to, are portable so you can bring them with you, etc.
  • To less tech-savvy people, laptop computers are basically Arthur C. Clarke's third law made reality: Any sufficiently advanced technology is indistinguishable from magic.

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