Pardon for the old meme here, but... "Pics, or did not happened!"?
Yeah I kind of expected explosionpron not camera rig diagrams.
Los Alamos is capturing images of explosions at 7 millionths of a second
91–100 of 106 posts
Re: Los Alamos is capturing images of explosions at 7 millionths of a second
#92Earlier quoted context omitted.
The slow mo guys did a video [1] at 10 trillion FPS. They also recently did another video [2] at 5,000,000 FPS. Their other videos vary between 50,000 FPS and 850,000 FPS. Edit: They mention in [2] that the Phantom camera they have can go to a 95ns exposure up to 1,750,000 FPS. [1] https://www.youtube.com/watch?v=7Ys_yKGNFRQ&pp=ygUMc2xvdyBtb... [2] https://www.youtube.com/watch?v=BTkZ36g4GOs
The 10 trillion FPS number comes from the fact that they’re taking advantage of a strobing effect in the light they’re filming, such that if the strobe is happening at (for example) 1000Hz, they can get a frame at time T, then a frame at time T + 1.00000000001ms, then T + 2.00000000002ms, and so on. Then you stitch it together and it looks like they’re a 10-trillionth of a second apart. No camera is taking in 10 tril…
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Re: Los Alamos is capturing images of explosions at 7 millionths of a second
#937mths? What unit is that. Did they mean 7μs resolution? How is that special? I see youtubers doing nanoseconds. edit: here is the important information in this article. > Scorpius is a new accelerator project planned for the Nevada National Security Site (NNSS) that will use an electron beam that can be broken into customized pulses to deliver x-rays and capture multiple images only hundreds of nanoseconds apart. So…
While we're nit-picking the title, what does the "real-time" part mean? How would it be different if it wasn't real-time? Dictionary.com defines "real-time" like as, "the actual time during which a process or event occurs", eg "along with much of the country, he watched events unfolding in real time on TV". Or in the domain of Computing, "relating to a system in which input data is processed within milliseconds so th…
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Re: Los Alamos is capturing images of explosions at 7 millionths of a second
#947mths? What unit is that. Did they mean 7μs resolution? How is that special? I see youtubers doing nanoseconds. edit: here is the important information in this article. > Scorpius is a new accelerator project planned for the Nevada National Security Site (NNSS) that will use an electron beam that can be broken into customized pulses to deliver x-rays and capture multiple images only hundreds of nanoseconds apart. So…
The first line of the articles says "seven-millionths of a second", which would be 1/7μs or 0,14μs. They also mention that the camera shot 16 frames in that period, so that would be once every 0,00875μs or once every 8,75ns Youtubers are a couple of magnitudes away from that, AFAIK
I think this is incorrect reading of the numbers
I've never heard of `{number} {plural magnitude}` meaning `mag / number`. I've only ever seen it mean `number * mag`. As in 3-thousandths == 3 * 0.001 not 0.001 / 3.
7 * 0.001ms = 0.007ms or 7us or 7000ns.
Re: Los Alamos is capturing images of explosions at 7 millionths of a second
#95Earlier quoted context omitted.
The first line of the articles says "seven-millionths of a second", which would be 1/7μs or 0,14μs. They also mention that the camera shot 16 frames in that period, so that would be once every 0,00875μs or once every 8,75ns Youtubers are a couple of magnitudes away from that, AFAIK
The slow mo guys did a video [1] at 10 trillion FPS. They also recently did another video [2] at 5,000,000 FPS. Their other videos vary between 50,000 FPS and 850,000 FPS. Edit: They mention in [2] that the Phantom camera they have can go to a 95ns exposure up to 1,750,000 FPS. [1] https://www.youtube.com/watch?v=7Ys_yKGNFRQ&pp=ygUMc2xvdyBtb... [2] https://www.youtube.com/watch?v=BTkZ36g4GOs
Not with X-rays they aren't.
Re: Los Alamos is capturing images of explosions at 7 millionths of a second
#96Earlier quoted context omitted.
Maybe I'm misreading your comment, but you seem like you're talking about privatizing this research whereas the other commenter seems to be talking about public cuts leading to a reduction of research. Just because something gets cut doesn't mean it gets outsourced elsewhere.
I guess my point is that it's hard to simply cut research that's essential for certifying that the stockpile is safe and works. I'll avoid making any predictions, because who the hell knows what's going to happen, but I think dynamic imaging work may prove a tough target for DOGE.
Yes. It is hard to this honestly and correctly. That would mean that normal people wouldn't make these cuts.
It also has very little predictive power for the loon with the checkbook right now. He might just as likely notice that people care a lot about that issue and hold it for ransom.
Re: Los Alamos is capturing images of explosions at 7 millionths of a second
#97Every time I read about one of the national labs doing this research, I wonder how much longer we will head about these. I feel fairly positive that DOGE's layoffs and budget cuts mean this output will fade away in time.
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There are many counter-factual hypotheticals like this in common speech.
"if pigs could fly"
"when hell freezes over"
"when Trump and the GOP care about truth"
They all mean the same thing.
Re: Los Alamos is capturing images of explosions at 7 millionths of a second
#98Earlier quoted context omitted.
The slow mo guys did a video [1] at 10 trillion FPS. They also recently did another video [2] at 5,000,000 FPS. Their other videos vary between 50,000 FPS and 850,000 FPS. Edit: They mention in [2] that the Phantom camera they have can go to a 95ns exposure up to 1,750,000 FPS. [1] https://www.youtube.com/watch?v=7Ys_yKGNFRQ&pp=ygUMc2xvdyBtb... [2] https://www.youtube.com/watch?v=BTkZ36g4GOs
The 10 trillion FPS number comes from the fact that they’re taking advantage of a strobing effect in the light they’re filming, such that if the strobe is happening at (for example) 1000Hz, they can get a frame at time T, then a frame at time T + 1.00000000001ms, then T + 2.00000000002ms, and so on. Then you stitch it together and it looks like they’re a 10-trillionth of a second apart. No camera is taking in 10 tril…
"electron beam that can be broken down into customized pulses" also sounds superficially like strobing.
Re: Los Alamos is capturing images of explosions at 7 millionths of a second
#99Earlier quoted context omitted.
Maybe I'm misreading your comment, but you seem like you're talking about privatizing this research whereas the other commenter seems to be talking about public cuts leading to a reduction of research. Just because something gets cut doesn't mean it gets outsourced elsewhere.
I guess my point is that it's hard to simply cut research that's essential for certifying that the stockpile is safe and works. I'll avoid making any predictions, because who the hell knows what's going to happen, but I think dynamic imaging work may prove a tough target for DOGE.
I think the overall aim of DOGE is simply to move research into privately controlled entities, especially those that can’t be cut. Its simply a continuation of transferring the national asset base (tax/usd) from democratic control, into private control.
It doesn’t need to be profit making in the normal sense (see SpaceX) it just needs to be the only game in town when the US Gov spends on national security
Re: Los Alamos is capturing images of explosions at 7 millionths of a second
#1007mths? What unit is that. Did they mean 7μs resolution? How is that special? I see youtubers doing nanoseconds. edit: here is the important information in this article. > Scorpius is a new accelerator project planned for the Nevada National Security Site (NNSS) that will use an electron beam that can be broken into customized pulses to deliver x-rays and capture multiple images only hundreds of nanoseconds apart. So…
While we're nit-picking the title, what does the "real-time" part mean? How would it be different if it wasn't real-time? Dictionary.com defines "real-time" like as, "the actual time during which a process or event occurs", eg "along with much of the country, he watched events unfolding in real time on TV". Or in the domain of Computing, "relating to a system in which input data is processed within milliseconds so th…
The opposite of "real-time" in this context would be "sampling". It means that the capture represents the high-resolution time history of one particular event (one explosion) instead of fast and successively offset captures from as many events.