In a way, it is kind of a trick question, because the most common answer (300,000 km/s) assumes that the phrase “in a vacuum” accompanies the question. The reason prisms diffract light into different colors is because some of the light waves go more slowly thru a solid medium than thru empty space.
There was a young fellow quite bright,Who could travel much faster than light,He departed one day,In a relative way,And returned on the previous night.
Richard S Russell Premium Member almost 2 years ago
In a way, it is kind of a trick question, because the most common answer (300,000 km/s) assumes that the phrase “in a vacuum” accompanies the question. The reason prisms diffract light into different colors is because some of the light waves go more slowly thru a solid medium than thru empty space.
Ratkin almost 2 years ago
Muhammad Ali, among others, claimed he was so fast he could turn off the light switch and get in bed before it got dark.
GabryelFrost almost 2 years ago
Duh ! What is a speed of light ? It is a speed light travels !!!
The Reader Premium Member almost 2 years ago
Not downhill, that’s the speeding of light!
don.snowdogs almost 2 years ago
The speed of light depends on how long it takes for me to find a flashlight when the power goes out……
Meg: All Seriousness Aside almost 2 years ago
Is it carrying a coconut?
P51Strega almost 2 years ago
Watt is the need of light.
uniquename almost 2 years ago
Yes.
Lenavid almost 2 years ago
Well, light IS affected by gravity…
sandpiper almost 2 years ago
Depends if the lights are just headlights or the flashers on a cop car.
Steverino Premium Member almost 2 years ago
WHAT is the airspeed velocity of an unladen swallow?
InTraining almost 2 years ago
didn’t he mean to say “Watt is the speed of light”…?
KEA almost 2 years ago
and you wonder why physics teachers cry
Zen-of-Zinfandel almost 2 years ago
Sparks will fly.
ChessPirate almost 2 years ago
“African or European light?”
“Wha… I don’t know that.”
[AAAAAAAAAAAA!!!]
puffyshirt almost 2 years ago
It’s either E, m, c, or 2…it’s hard to keep them all straight
Sir Isaac almost 2 years ago
There was a young fellow quite bright,Who could travel much faster than light,He departed one day,In a relative way,And returned on the previous night.
Sailor46 USN 65-95 almost 2 years ago
The same as the Speed of Dark? We on earth would not see the sun disappear from the sky until 8 minutes and 19 seconds after it had vanished.