Added: 3 years ago
From: raffleslss
Views: 56,985
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  • i still dont get it ...:/

  • I LUV IT THANK YOU

  • This is amazing, easy to understand, great explanations. You have saved my life.

  • Excellent! I'm using this video with my french pupils attending science in english.

  • An hour with a Physics book = 10:03 min with Youtube

  • The most thorough video on the basic theory of refraction I have seen.

    Excellent

  • gud videoo!

  • Thanks, this video includes everything I was looking for. I will use this for my physics lesson next week.

  • @gavinfuzzy

    lol

  • thanks this video is very helpful! but where's part 2? i want to know what will happen if the sides are not parallel :(

  • Where's part 2?

  • very helpful!!!thanks

  • i haven't finished watching this all the way through yet but doesn't the theory of relativity state that light will always go at 300000000 meters per second relative to everything? however this video talks about working out the speed of light through a transparent substance how can this be?

  • @SpykoXX

    We know that glass is made of atoms, well when a light beam hits a glass what happens at the atom level is, the first atom that encounters the light beam absorves, oscillates and then produce another light beam, which will do the same process on the adjacent atom until it exits the glass.

    In some object this process of absorbing, oscillating and remitting light is quite faster than other thus slowing the "speed" of the light as it travels through the object.

  • @eddieonofre i see so whenever it is a beam of light it is in fact travelling at the speed of light but the time between when one beam is absorbed and the second beam of light is created gives the illusion of slowing light and all that is really being worked out is the time it takes for a photon to enter the transparent substance and the time it takes to leave

    does that sound about right?

  • @SpykoXX exactly

    different atoms take more time to recreate the photon they absorve thus making the average speed of light through the material slower and it bends (refracts) the light as well

  • where is refraction part 2?

  • Comment removed

  • i don't know what will happen if the sides are not parallel :(

  • thanks, this is really great.

  • Well what happens then!!!!!!!! Where's part 2? Could you upload it please?

  • well explained! :D

  • when i do the sine of 27.22 i get 0.4574

    (approx 03.26 in the video) not 0.4594 as in the video

    im trying to learn this stuff ,

    is it a mistake or am i doing something wrong?

  • Can You please tell me from where you got this video?

    Please tell from which documentry it is from or what ever is the name of this video.

  • Thanks for uploading this, I'de be grateful if you uploaded part 2 of this topic.

  • I never get refraction . :S It sucks

  • thanks for this!

  • Thank you a lot! You helped me so much...thanks again!

  • very helpuf video! Upload No2, plz.

  • very VERY helpfull, but the part of 1:30 till 2:59 is that also Snell's Law?

    VERY HELPFULL, thank you so much!

  • how the fuck did he discover the sine of blah blah blah is constant. Why not tan/ cos

  • because tan and cos aren't you fucking retard

  • Wow, excellent video. I enjoyed it.

  • Very helpful indeed, ignore Thommyo0's comment...

  • rexxer86 is a tool this video isnt helping at all ignore rexxer86

  • fuck off den!

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