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• Is it safer to leave the porch light on all night or off?

  Asked by miasmom from iPhone | 14 responses

• How powerful does a laser have to be to zap a bug dead (not into charcoal) from ten feet?

  Asked by Ltryptophan | 8 responses

• Is the sky transparent at night?

  Asked by Ltryptophan from iPhone | 16 responses

• Why do light from two different sources doesn't form coherent sources?

  Asked by vamsiviswa | 3 responses

• Got any tips for a holga camera virgin?

  Asked by shrubbery | 11 responses

• What is the difference between artificial light and natural light?

  Asked by lexipoorocks | 10 responses

• Can you recommend a small solar charger I can use indoors?

  Asked by JLeslie from iPhone | 3 responses

• Why the primary colours of paints are different from the primary colours of light?

  Asked by t3qn0loqiiic | 6 responses

• Is this invention already made?

  Asked by RedDeerGuy1 | 10 responses

• Does anybody else get a sense of foreboding/ unease when the season changes?

  Asked by fathippo | 11 responses

• What effect does only distance travelled have on light?

  Asked by Ltryptophan | 14 responses

• Does the speed of light change?

  Asked by Satchafunkilus | 10 responses

• I need help to set up a frog enclosure?

  Asked by ctimm15 | 6 responses

• Why does colour/ color exist?

  Asked by nebule | 29 responses

• Do you have your window's blinds/curtains open or closed during the day?

  Asked by erichw1504 | 56 responses

• Would you have use for candelabra bulbs that were energy saving (CFL or LED), yet produced 75+ watt light equivalent?

  Asked by ibstubro | 7 responses

• How does glow-in-the-dark plastic "trap" light?

  Asked by GeorgeGee | 4 responses

• Could we use a quantum telescope to see the earth or the sun in the distant past?

  Asked by Ltryptophan from iPhone | 13 responses

• Light bulbs or Candles... Which is more cost effective?

  Asked by aaronb | 9 responses

• Can you show what industry was wrought from an item or discovery [game]?

  Asked by Hypocrisy_Central | 4 responses

• Do you agree with the following quote about the double-slit experiment?

  Asked by luigirovatti | 3 responses

• How can photons move when at the speed of light there is no time for photons?

  Asked by Myndecho | 16 responses

• Did any of you notice that face book phenomenon?

  Asked by Just_Justine | 18 responses

• Boring question #88: Those men/women who are attracted to anorexic women, what makes them physically attractive?

  Asked by Hypocrisy_Central | 12 responses

• What causes 2 shadows of one item, and one shadow of the other things a few feet away from each other?

  Asked by flo | 4 responses

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