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• Blackened Sales Receipts and Glowing Scotch Tape.?

  Asked by arnbev959 | 25 responses

• What's with the lights/colors/motion you see when you close your eyes?

  Asked by arnbev959 | 13 responses

• If you are sealed into a sphere with a highly mirrored interior and you turn on a flashlight and then turn it off will the interior stay lit up?

  Asked by Ltryptophan from iPhone | 13 responses

• I've decided to start a new family tradition. Care to join in?

  Asked by Jeruba | 22 responses

• Do you have any photos, drawings, or scribbles you'd like to share?

  Asked by hominid | 57 responses

• How come fat makes paper transparent?

  Asked by Magnus | 5 responses

• Does anything move faster than light?

  Asked by chucklmiller | 72 responses

• How does this aspect of visual perspective work?

  Asked by Ltryptophan | 27 responses

• If we are looking into the past when we look at distant stars, doesn't that mean that when we look at objects in everyday life we see them as they were a moment ago?

  Asked by Hobbes | 21 responses

• What has been your prison? (I’m not talking about criminal prison)

  Asked by JLeslie from iPhone | 14 responses

• Do any of your neighbors pollute the darkness with lights shining out of their house?

  Asked by Kraigmo | 42 responses

• If the speed of light is 186,282 miles per second, what is the speed of dark?

  Asked by blueiiznh | 39 responses

• Have you made any unfortunate typos recently?

  Asked by Mariah | 3 responses

• Why is lightning jagged instead of smooth?

  Asked by Ltryptophan from iPhone | 8 responses

• Does this JC Penney catalog from 1982 jog any memories?

  Asked by hominid | 9 responses

• Will we ever be able to see the beginning of the universe?

  Asked by poisonedantidote | 24 responses

• Why is nightvision green?

  Asked by Mtl_zack | 1 response

• Have you ever used a "Vitamin D" artificial sunlight lamp?

  Asked by LC_Beta from iPhone | 17 responses

• How do you feel about the demise of incandescent light bulbs?

  Asked by marinelife | 40 responses

• Why is there a light in the fridge and not in the freezer?

  Asked by Armanarora | 7 responses

• Why does bright light help one to see details?

  Asked by RedDeerGuy1 | 10 responses

• Why do ice cubes look yellow when you put them in milk?

  Asked by arnbev959 | 18 responses

• How does a dual light switch work?

  Asked by RedDeerGuy1 | 9 responses

• Heard the Latest Neutrino Joke?

  Asked by ETpro | 22 responses

• Do you keep your Christmas tree lit?

  Asked by Hawaii_Jake | 29 responses

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