Blue Sky
3:40
Added: 2 years ago
From: AlchemicalGarden
Views: 7,077
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  • But you do realize that your torch is putting out blue light before reaching the solution! Shouldn't it be pure white light that enters the solution and scatters the blue wavelengths turning the solution blue as seen by the eye and letting the remaining colors pass thru turning the light exiting the solution a white-yellow-orange as seen by the eye. At 2:31 you clearly see the torch is tinted to put out blue light. Why?

  • Cool experiment, but terrible light source. I hope you redo it later!

  • The colour red is at 790–630nm in the spectrum.

    Most White LEDs fade out after 550nm of the spektrum so i guess that is why you dont get a effect for red. there is just not much red in your LED.

    Thats also why LED light feels cold.

    Nice video!

  • @PhouFoo Ah. makes sence.

  • Very nice experiment and a clear explanation. Well done! It's a pitty the red colour didn't work in the end. Did you try it again?

  • a little bit of milk in a clear bowl is nice too--gives a nice blue and red for those who don't have HCl and sodium thiosulfate

  • Hooray for Rayleigh scattering!!!

  • These colloid sulfur particles are too small to filter them out with simple filter-paper.

    Even with a glass-frit should be unable to filter this sulfur out.

  • yeah but if you leave it a bit the particals get bigger. in the video thay are way to small but if left for a hour or so they are biger

  • O_O awesome dudee :)

  • ... Life can now end, one of the world mysteries have been solved! J/k , really excellent demo, I appreciated it, along with the visual aids. Keep up the great work!

  • oo very neat experiment

  • A very interesting and nicely done vid. I think I'll try this tomorrow, I have the chems needed on hand. I think even i can do this one. I like the way you used a chemical reaction, interesting in itself, to explain an even more interesting phenomenon in the exterior world (the blue sky). *****5 stars*****

  • nice video (: you find out all of this yourself ? and isnt it possible to somehow turn a sulfur salt into elemental sulfur?

  • Yes and yes. this produce sulphur.

  • but thats in the water.. and doesnt it like go back into water if you try to filter out?

  • no, if you leave this reaction to go long enough then you can get bits of sulphur which you can filter out.

  • oh cool! what about some really easy get'able sulfur salts or H2SO4 i cant believe that its impossible to get elemental sulfur out of such stuff.. i think i can get sodium metabisulfide.. along with 20 grams of potassium permanganate (which is the main reason i found out i can get sodium metabisulfide) you should do a video on how to get elemental sulfur o:

  • You really have a handle on science. BRAVO! I don't know about England but here in the Midwestern USA during the summer we have periods of very hot and humid weather. It gets 35 Celsius with 50% relative humidity and the sky is filled with a whitish haze. Directly overhead there is a slight blue but at the horizons it is white or yellowish white. The sky returns to blue only when cool dry Canadian air spills south. I guess the haze is too large to scatter the blue part of the spectrum.

  • Thats a very interesting phenomenon, does it have a name? The hazes colour may be because the partials in the haze are too big and can reflect all the light.

  • And another great video from AlchemicalGarden =D

    thanks :-)

    I really love you're videos

    Happy new year!!

  • Happy New Year. :)

  • Ouch epic grammar fail xD ofcourse I meant to sya your videos :p

  • yes its just been up loaded. like 2 sec ago. give it til next year, then it will work :P

  • ... : (

  • awh. it says error occured. :(

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