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The Fastest Camera Ever Made Captures 100 Billion Frames Per Second
Jason Koebler writes A new imaging technique is able to capture images at 100 billion frames per second—fast enough to watch light interact with objects, which could eventually lead to new cloaking technologies. The camera was developed by a team at Washington University in St. Louis—for the team's first tests, it was able to visualize laser pulse reflections, photons racing through air and through resin, and "faster-than-light propagation of non-information." It can also be used in conjunction with telescopes and to image optical and quantum communications, according to lead researcher Liang Gao.
Don't tell Peter Jackson
No... no it isn't. And no you can't. And no they won't.
yup thats exactly how i feel
World's Fastest Camera Captures 4.4 Trillion Frames Per Second August 14, 2014
http://tech.slashdot.org/story...
"faster-than-light propagation of non-information" -- Politicians will looove that technology
Table-ized A.I.
Didn't MIT already show off their Femtosecond camera in a TED talk a few years back? That's 1 trillion per second, so this new one is slower!
They wanted to make the distinction that "things" can travel faster than light, but not mass or information.
Learn to love Alaska
But the costs for developing all that film would be outrageous..
Event horizons.
Picture scissors. The edges come together as they close. So increase the size of the scissors, and the speed you close them. Eventually the "point" where the scissors come together will eventually go faster than the speed of light.
It's "real". It's visible. And it isn't mass, energy, or information.
If you don't like that, take a laser. Point it at a cloud. Move the light as fast as you can. The point of light (as seen as the reflection on the cloud) can travel faster than the speed of light.
Learn to love Alaska
http://slashdot.org/comments.p...
No, not love. I thought techies on a tech site would have learned something in physics class. What are they teaching these days, and is there an opening for roman_mir?
Learn to love Alaska
Imagine a powerful, hand-held laser that you can point at the moon and see the reflection. Point it at the far end of the surface of the moon. Now flick your wrist, sweeping the laser across the surface of the moon within 1/100th of a second. The reflected dot will _appear_ to move faster than the speed of light. That is, it will appear to move smoothly* across 3476km (the diameter of moon) of the surface in 1/100th of a second. The speed of light is 299792km/second, and the dot moved at 347600km/second. In other words, it appeared to have moved faster than the speed of light.
Actually, there's really no need to italicize the word appear, I guess. There is a dot and it is moving (even if you define it as a series of discrete reflections, they're all causally related). It's just not the kind of "thing" that can convey information. You can't encode any information in the movement that conveys information to an observer faster than the speed of light.
* You may need to use time-lapse video. I just used the moon as an example because it's concrete. If the moon were larger and farther, the sweeping motion of your wrist could be slower.
For a receiver situated on the moon, limited by the speed of light between him and his tracking devices (which are also situated on the moon), this part gets a little tricky, doesn't it? (i.e., "tricky," I mean "impossible.")
If it can watch photons move, what exactly transfers the existence of those photons to the camera's sensor? some of the photons that refract from dust and air?
All those moments will be lost in time, like tears in rain... time... to... die...
Alice now knows what Bob will do.
No, she only knows what Bob has agreed to do, because she agreed it with him while they were in causal contact. This is not the same as knowledge of what Bob will do. For all Alice knows, Bob could have had a heart attack last night, or his equipment could be faulty, or he might just decide to be contrary and not do what's been agreed just to prove to Alice that no information has actually exceeded the speed of light.
You're confusing the common-place meaning of "know" (as in, "I know my husband is working late at the office") with the very strict information theory version. I "know" that Alpha Centauri hasn't exploded up to this moment, but I won't know it until the light gets here in four years' time.
systemd is Roko's Basilisk.