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seen Jun 29 '13 at 18:45

Oct
16
awarded  Notable Question
Jun
29
awarded  Scholar
Jun
29
accepted Determining the center of mass of a cone
May
15
awarded  Custodian
Mar
27
awarded  Popular Question
Sep
29
awarded  Editor
Sep
29
revised Determining the center of mass of a cone
added 11 characters in body
Sep
29
comment Determining the center of mass of a cone
Ofc its not, and thats my problem. It's either my bounds or the r should be a z. I'm not sure.
Sep
29
revised Determining the center of mass of a cone
edited tags
Sep
29
comment Determining the center of mass of a cone
They are not homework, and I did do the sum just making a mistake somewhere. And asking for help with that..
Sep
29
asked Determining the center of mass of a cone
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18
awarded  Student
Jul
17
comment Liquid crystal polarizes light reflection question
Thanks, I understand now!
Jul
16
comment Liquid crystal polarizes light reflection question
But how exactly? The light with the correct wavelength passes trough unafected, while the rest gets polarized and whatnot. After that most of these crystals have a black layer to absorb everything that comes trough, but why doesn't the light of the correct length get absorbed?
Jul
16
asked Liquid crystal polarizes light reflection question