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How far does light travel in 1 millisecond?

Light travels at a speed of 3.0 x 108 meters per second, or m/s. One light year represents the distance light travels in one year. We can use both of these facts to calculate how far light travels in ... read more

Ask Ethan: If Light Contracts And Expands With Space, How Do We Detect Gravitational Waves?

But how does that work? Amrish Pandya wants to know ... to the end of the interferometer arms and back. You agree to both travel at precisely 1 mile per hour. Just like LIGO’s laser light waves, you l... read more

Faster-than-light travel discovered? Slow down, folks

Photons travel ... 2.43 milliseconds, and the neutrinos appear to have outraced that speed by 60 nanoseconds. If true, that means they were traveling just a scosh faster than light, by about 1 part in ... read more

How to achieve 1-meter accuracy in Android

Figure 1, with the access point in the center ... RF packet from an access point to a phone and back again. Because radio signals travel at the same speed as visible light, if we multiply the total ro... read more

The Science Behind Kinects or Kinect 1.0 versus 2.0

Figure 1 ... in travel distance since all sensors have some amount of thermal noise (i.e. free electrons floating through the semiconductor lattice) that look like light photons as well as having limi... read more

Video buffering or slow downloads? Blame the speed of light

While light travels slower in glass than it does in air, the result is a considerable improvement ... the round trip time between London and New York can be brought down below 100 milliseconds, reachi... read more

The Edmonton Oilers win their 8th of the season 4-3, a score that flattered the home-town Detroit Red Wings

Ended up +1 with 3 shots in 18:44. CF% of 76.19 led the team (16-5). Won’t be on the hi-light reel but did the ... t on his stick for more than a millisecond. Caggiula finished with 2 shots ... read more

Extreme numbers: the unimaginably large and small pop up in recent experiments

The gravitational waves travel at the speed of light, so the black holes that generated ... It doesn’t go out as far as the black holes that created the gravitational waves, nor does it go as small as ... read more

Your Questions About Gravitational Waves, Answered

The maximum amount of time for this trip is about 10 milliseconds ... wave? Does it have mass? If it doesn’t have mass, is it possible for it to move faster than the speed of light? Stuver: Gravitatio... read more

Danish physicists claim to cast doubt on detection of gravitational waves

On September 14, 2015, at 5:51 AM EST, both detectors picked up signals within milliseconds ... waves travel at the speed of light, but since the detectors are so far apart, there should be ... read more