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uhoh
uhoh
15:21
1
Q: In the recent Con-Ed transformer "fire", what exactly produced the color of the huge blue glow over New York City?

uhohBlue is often linked with technology (e.g. "big blue", glowing pools of water with Cherenkov radiation, aliens in general, Nobel prizes for blue LEDs) as well as traditional things like sparks. In a huge transformer "fire" event like this, what causes this blue light? Is it related to chemicals ...

transformer discharge spark arc
copper vapor?
 
1 hour later…
M.A.R. ಠ_ಠ
M.A.R. ಠ_ಠ
16:41
-5
Q: Scientific products, Which is the best use?

mohamed jamzithVarious products are produced using scientific advancement. Fan, Telephone, TV, Mobile Phone, etc.. Some wealthy buy these for luxury Some poor people buy these as essential items My question is on what basis these products are produced

consumer-products

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