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What's the best wearable light for a 5k runner?
Asked by serenade from iPhone | 7 responses -
How big a standing generator would I need to get?
Asked by janbb | 15 responses -
Some questions about rainbows.
Asked by El_Cadejo | 17 responses -
How much of the energy the earth gets from the sun is in the visible spectrum?
Asked by 6rant6 | 10 responses -
Does the speed of light change?
Asked by Satchafunkilus | 10 responses -
Can anybody find a picture of the Milky Way as viewed with the naked eye?
Asked by Nullo | 12 responses -
What's a reasonable price for good glow-in-the-dark paint?
Asked by Nullo | 5 responses -
Are mirror images 3 dimensional?
Asked by LostInParadise | 15 responses -
How does an IFR observer measure the speeds of two craft going oppisite directions approaching "C"?
Asked by mr_g | 8 responses -
How are particle accelerators created from radiowave frequency?
Asked by radcliff | 9 responses -
How could a human eye become an Optical Black Hole?
Asked by radcliff | 12 responses -
How to wake up one only instead of their partner too?
Asked by yungtik | 12 responses -
How often do you wear sunglasses?
Asked by Plucky | 29 responses -
Where can I find a 78mm Type J 120 Volt Halogen bulb locally?
Asked by ETpro | 7 responses -
Caption competition! Name that acronym caption to the news photo (#7).
Asked by rebbel | 11 responses -
What are some music groups/artists similar to the Avett Brothers?
Asked by likipie | 7 responses -
What type of lighting will produce the most visible beam in daylight?
Asked by pallen123 | 10 responses -
Why do LED lights seem "digital" when you take your eyes off them?
Asked by fordest | 13 responses -
If the speed of light is 186,282 miles per second, what is the speed of dark?
Asked by blueiiznh | 39 responses -
Can something (a particle?) arrive somewhere before it is sent?
Asked by rebbel | 11 responses -
Is it normal for a light bulb to break and hang from the light fixture by a wire?
Asked by owenburnett | 9 responses -
Heard the Latest Neutrino Joke?
Asked by ETpro | 22 responses -
How do you feel about the demise of incandescent light bulbs?
Asked by marinelife | 40 responses -
Theoretical question involving relativity. Faster than light!
Asked by pikipupiba | 8 responses -
Have you ever noticed that if you look at your iris in a mirror, you can see your face reflected in it?
Asked by Hobbes | 6 responses
