Aerogel total internal reflection

This is a demonstration of total internal reflection on a gradual polar scale. Laser beam enters all the time from left, only the scale with the rectangle is rotated. Moments of interest are when the beam splits - when refraction turns to reflection. This effect is best proof of the sample being aerogel - no other material is able to make this small refraction.

Category:

Science & Technology

Tags:

• aerogel

[R52OSO]

so glad i'm doing A-level physics cos now I actually understand this stuff! :)

[pimbilibom]

@R52OSO i am so happy for You because it took 2 years and 11200 views before someone understood it! Thank You very much and wish You all the best!

[pimbilibom]

Really? Can you base your opinion? Aerogel has refractive index of 1.02. That's why laser beam is bent so little and that is what this demonstration is all about. The refractive index equals inverse sine of total reflection angle, shown in the video. No other material has this low index and thus is proven that the cube in the video is aerogel.

[Unintelligenda]

@pimbilibom Don't bother with the person who said it's fake. I'm sure they are just saying it for the purpose of trolling.

[HaydenHatTrick]

@CommentStation aproximatly 1 year ago



[HaydenHatTrick]

@HeCtorCapitalCe omg, no trolling, what else on the internet is a lie... omg, i dont think i can handle this AAHHHHHHH!

[HeCtorCapitalCe]

@Unintelligenda there is no such thing as "trolling" ! FAKE!

[ninjaspion]

@pimbilibom fake and your comment is also fake, it's a cube of pure witchcraft, you should be ashamed for trying to fool ppl!

[MrUbertubers]

@pimbilibom Don't feed the trolls.

[TuneMaestro]

@CommentStation Well, that is now an un-answerable question!