Tag Archives: Snell’s Law

What makes things shiny?



Why exactly are some things shiny? 

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To find out more:

Richard Feynman’s book on Quantum Electrodynamics:

Website discussing why metals are shiny:

Image credits:

Reflection image: Lasse Havelund / CC BY-SA ( – filter applied

Keywords:
Science, ASK., Metals, Mirror, Understanding, Technology, Physics, Light, Refraction, Snell’s Law, Vsauce, Veritasium, Mark Rober, Minute Physics, Shiny, Reflective, Why, SciShow, science, Hank, Green, education, learn, light, color, metal, shine, neutrons, protons

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Why don't round lenses produce round images?



Why do cameras make square or rectangular photos?

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To find out more:

Chromatic aberration –

How cameras work –

A quick video showing you how the mirror flip in an old SLR camera happens –

Photo credits:

Chromatic aberration flower – EricFrederich
Creative Commons Attribution-ShareAlike 3.0

Absorption spectrum of a few elements

Almuazi / CC BY-SA (

Sellmeier equation – Maksim

Creative Commons Attribution-Share Alike 3.0

Cheetah – Joshua Burke

Creative Commons Attribution-ShareAlike 3.0

Keywords:
Science, ASK., Camera, Photograph, Understanding, Technology, Physics, Light, Refraction, Snell’s Law, Vsauce, Veritasium, Mark Rober, Minute Physics, Chromatic Aberration

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