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Dec 1, 2018 at 20:41 answer added Michael Hardy timeline score: -1
Dec 1, 2018 at 1:25 history protected AccidentalFourierTransform
Dec 1, 2018 at 1:13 answer added phr timeline score: 2
Nov 30, 2018 at 15:31 answer added katana_0 timeline score: 0
Nov 29, 2018 at 15:47 comment added a concerned citizen Why paper and not mousepad, or bed sheets, or brick wall? What does a mirror, or a polished silver plate, or the surface of water have that those don't?
Nov 29, 2018 at 12:57 answer added morten timeline score: 2
Nov 29, 2018 at 8:04 comment added phresnel Some kinds of paper are actually pretty reflective (apart from the whiteness, which proves the reflectance already) - typically the not-so-environment-friendly-very-bleached kind of paper. If you take the pencil and lay it down on the paper, you may see it. A second effect that then becomes apparent is when you minimize the angle to the paper plane - it will become more mirrorly then (same effect as on a long, hot summer road).
Nov 29, 2018 at 3:40 comment added craq In case your question is about the difference between the reflectiveness of paper and mirrors (diffuse and specular) you might want to have a look at the wikipedia page: en.wikipedia.org/wiki/Diffuse_reflection.
Nov 28, 2018 at 0:00 history tweeted twitter.com/StackPhysics/status/1067568965583626245
Nov 27, 2018 at 23:01 answer added lurscher timeline score: 0
Nov 27, 2018 at 22:46 answer added Ján Lalinský timeline score: 2
Nov 27, 2018 at 21:29 answer added Jan Hudec timeline score: 4
S Nov 27, 2018 at 21:08 history suggested StayOnTarget CC BY-SA 4.0
The question actually is much more general than the specific example being used.
Nov 27, 2018 at 20:25 review Suggested edits
S Nov 27, 2018 at 21:08
S Nov 27, 2018 at 18:34 history suggested David Richerby CC BY-SA 4.0
Copy-editing
Nov 27, 2018 at 17:37 answer added Ilmari Karonen timeline score: 170
Nov 27, 2018 at 16:15 review Suggested edits
S Nov 27, 2018 at 18:34
Nov 27, 2018 at 14:22 history edited katana_0 CC BY-SA 4.0
edited body
Nov 27, 2018 at 10:20 history edited Qmechanic CC BY-SA 4.0
added 1 character in body; edited tags
Nov 27, 2018 at 10:15 answer added Cardinal Sine timeline score: 14
Nov 27, 2018 at 10:12 history asked katana_0 CC BY-SA 4.0