Stopping A Laser Beam In Mid-Air

Stopping A Laser Beam In Mid-Air



Lasers travel at the speed of light. You can’t stop one in mid-air like Kylo Ren. Except: we just did. Here’s how. • Seb’s video: …

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Lasers travel at the speed of light. You can’t stop one in mid-air like Kylo Ren. Except: we just did. Here’s how. • Seb’s video: …

tom scott,tomscott,seb lee-delisle,laser,rolling shutter


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44 responses to “Stopping A Laser Beam In Mid-Air”

  1. Tom Scott Avatar

    Thanks so much to Seb and everyone who helped out with this! Go check out Seb’s video — it includes some advice on how to start with laser art!

  2. Der Richtige Arzt Avatar

    Well technically the "lasers" in most sci fi is plasma created either by superheated gas or just energy. So it could be stopped by force? Dunno, sci fi has way more fi than it has sci so it doesn't matter really.

  3. Druffdan Avatar

    So all you need to do is give the audience "rolling shutter" goggles?

  4. Pebble Avatar

    Tom: I cant look at it without wearing these goggles
    Me whos looking at it without wearing them: pathetic

  5. Gojiro7 Avatar

    I love that the reality of a "small" laser is it being the size of a car battery XD

  6. FootyDaily Avatar

    can anyone tell me the music piece at 4.48. It's stuck in my head and i can't find it. I will forget it for now and come back later

  7. GBrooks Avatar

    Is there a link to sample instructions for how to create these effects? Including what kind of laser attachments?

  8. RadicalErin Avatar

    We can actually make light stop. Plasma too. It's a lot more complex, though.

  9. Erazet Avatar

    So in theory, with help of some really complicated programm, one could stand in front of s camera, swing around one of these Lasers and the programm makes it end at a certain length, the way lightsabers do?

  10. Ashurean Avatar

    Can the cgi industry unionize to the same level that the practical effects industry has so production studios start using practical effects again?

  11. mc stark Avatar

    Any camera with a 2 curtain focal plane shutter will expose the film/sensor like that.

  12. THIS GUY HD Avatar

    Not gonna lie. Anyone else thought that “laser dude’s” voice was annoying?

  13. Beerstealer Avatar

    "You're ruining my test right now." you're ruining Toms video mate 😀

  14. Thomas Braeuning Avatar

    Just remembered me about Talos Principle

  15. JHS Avatar

    Rolling shutter? Why not just sync the frame rate? That seems way easier

  16. OFFtheCHIZANE Avatar

    Gotta say it, Gav’s matrix bullet dodge on the slow mo guys channel was better.

  17. htomerif Avatar

    This is the most boring way it could possibly be accomplished.

  18. DaHyi Mi Avatar

    What you didn't explain is: how is the beam made visible? Laser beams aren't visible. You need something to refract it so that it gets to your eyes or camera.

  19. 23hublock1 Avatar

    I will never…ever forget a night club in Bournemouth circa 1992 or possibly 1995. I have never seen a laser show like it before or since. The club was opposite a church with a graveyard. I was blown away, totally.

  20. Manav Avatar

    "can this burn me?"
    "yea"
    "okay"

  21. JP Avatar

    Tom: Can this burn me?

    “Yes”

    Tom: *proceeds to put hand in front of laser*

  22. Brickticks Avatar

    Okaaaayy, but can I blow something up with it?

  23. BatCatDickBabsJayTimSteph CassDukeKateLukeHarlHel Avatar

    I like Tom immediately starts touching the laser AFTER being informed that it can burn him

  24. Saswot Lamichhane Avatar

    So, what do you want to be when you grow up?

    A lazarist

  25. #1Fieldmedic Avatar

    are the blasters in star wars actually laser weapons though? Because they behave like plasma weaponry, rather than laser weaponry

  26. Timothy Conover Avatar

    Keanu Reeves, not feeling the least bit threatened.

  27. Kohen MacDonald Avatar

    Would you be interested in helping me and my associates construct a laser chainsaw of sorts

  28. S hifty Avatar

    Hes like the blue peter presenter you always wanted

  29. Aldo Ramírez Avatar

    Where was this shot? NYADA?

  30. Sujal Gupta Avatar

    THAT IS SHINJI'S CELLO COMPOSITION FROM EVANGELION DEATH AND REBIRTH AT 4:50

  31. Novaxy Avatar

    "…you can't stop laser in real life…"

    Pauses video

  32. Rilakkuma Playing osu! Avatar

    This is just fighting Guardians in Breath of the Wild

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