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• How does prismatic paint work?

  Asked by syz | 3 responses

• (Unanswered question from 2008) How does prismatic paint work?

  Asked by syz | 3 responses

• Why do objects in mirrors still appear blurry for people with poor eyesight?

  Asked by paulc | 3 responses

• Who can benefit from Pinhole Glasses?

  Asked by dpworkin | 5 responses

• Are Objective lenses standardized? [microscope]?

  Asked by Beta_Orionis | 2 responses

• What would it be like to have three functional eyes?

  Asked by Ltryptophan from iPhone | 19 responses

• What could cause the sun to appear to be missing a chunk? [Details]?

  Asked by ibstubro | 21 responses

• Question about guns and scopes?

  Asked by jaketheripper | 7 responses

• How could a human eye become an Optical Black Hole?

  Asked by radcliff | 12 responses

• Is there a term for someone who is nearsighted in one eye and farsighted in the other?

  Asked by Carly | 9 responses

• Who makes a powerful pirate style collapsing monacle?

  Asked by Ltryptophan | 8 responses

• Is it necessary for sunglasses to have tinting to block all 100% UV rays, glare, and be polarized?

  Asked by Ltryptophan from iPhone | 8 responses

• I plan to buy a new telescope which one should it be?

  Asked by sandystrachan | 8 responses

• Why does one eye become weaker than the other?

  Asked by lilikoi | 14 responses

• What is wrong with my camera display?

  Asked by rojo | 3 responses

• Is it possible to invent photo magnification without the use or manipulation of lenses?

  Asked by talljasperman | 7 responses

• For Microbiologists, Chemists, Researchers – Can you think of a use for this material in your work?

  Asked by Lupin | 1 response

• How do I make this work for under $100?

  Asked by Ltryptophan | 10 responses

• Is there any way to make diamond flouresce in the visible or near IR region?

  Asked by LuckyGuy | 10 responses

• Can anyone help me decide what sort of optics to buy?

  Asked by CaptainHarley | 5 responses

• Rerout an IR signal to a receiver from a remote?

  Asked by XCNuse | 1 response

• Battlefield 3 magnum question in relation to real-life airsoft?

  Asked by shniernan | 4 responses

• Reading glasses with negative corrective power?

  Asked by Vincentt | 5 responses

• Can you explain the difference between a prime/fixed focal length lens and one where the focal length can be varied?

  Asked by tekn0lust | 4 responses

• I'm having trouble looking at the white board in school any suggestions?

  Asked by whitecarnations | 13 responses

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