FrickinLazerBeams
FrickinLazerBeams t1_je7ez4s wrote
Reply to comment by coffeecofeecoffee in Ultramassive black hole over 30 billion times mass of our sun has been spotted. The discovery had been made possible thanks to a phenomenon known as gravitational lensing — the first time a black hole has been spotted in such a way. by Wagamaga
Yes. He made some kind of math error on that point. Everything else he said is correct though.
FrickinLazerBeams t1_je7epth wrote
Reply to comment by B4SSF4C3 in Ultramassive black hole over 30 billion times mass of our sun has been spotted. The discovery had been made possible thanks to a phenomenon known as gravitational lensing — the first time a black hole has been spotted in such a way. by Wagamaga
No. Black holes have a size. A black hole with 30 billion solar masses has a radius of a little less than 600 AU (Astronomical Units, the average distance from the earth to the sun).
FrickinLazerBeams t1_je7ebb4 wrote
Reply to comment by B4SSF4C3 in Ultramassive black hole over 30 billion times mass of our sun has been spotted. The discovery had been made possible thanks to a phenomenon known as gravitational lensing — the first time a black hole has been spotted in such a way. by Wagamaga
A 30 billion solar mass black hole has a diameter of nearly 600 times that of earths orbit around the sun. That's pretty big.
FrickinLazerBeams t1_j4tgonz wrote
Reply to comment by visionfire1 in TIL about SubTropolis, a giant former limestone mine under Kansas City that was converted into the world’s largest underground business complex. The 1,100-acre complex is accessed through tunnels, and as of 2015, 1,600 people worked there. by corn_dog_22
What?! That sounds fucking awesome.
FrickinLazerBeams t1_j0s6rca wrote
Reply to comment by Double_Distribution8 in Cambridge scientists have shown that a widely-used drug to treat liver disease can prevent SARS-CoV-2 infection or reduce COVID-19 severity by hot
>Granted it won't keep you from getting it and spreading it
This isn't true. It's not as effective at reducing infection and spread as we'd like, but it certainly does help.
FrickinLazerBeams t1_j0s49yn wrote
Reply to comment by phdpessimist in Cambridge scientists have shown that a widely-used drug to treat liver disease can prevent SARS-CoV-2 infection or reduce COVID-19 severity by hot
It's been 3 years. I'm assuming this has all been explained to you, but you enjoy lying?
FrickinLazerBeams t1_j0s3lk4 wrote
Reply to comment by MALECHIMPI in Cambridge scientists have shown that a widely-used drug to treat liver disease can prevent SARS-CoV-2 infection or reduce COVID-19 severity by hot
That's an anecdote and means nearly nothing.
FrickinLazerBeams t1_j069ihc wrote
Reply to comment by ProfessionEuphoric50 in National Ignition Facility (NIF) announces net positive energy fusion experiment by Robo-Connery
We're not. What are you talking about?
FrickinLazerBeams t1_j069g0a wrote
Reply to comment by SemanticTriangle in National Ignition Facility (NIF) announces net positive energy fusion experiment by Robo-Connery
The x-rays are essentially just heating the fuel capsule, so spectrum doesn't matter much.
FrickinLazerBeams t1_j06980c wrote
Reply to comment by mynewaccount5 in National Ignition Facility (NIF) announces net positive energy fusion experiment by Robo-Connery
Hypothetically, if the reaction itself is net positive, it means there is is no longer a question of whether physics allows this to work; it becomes simply an engineering challenge to make it practically viable. That's not to say the engineering problem is easy, or is sure to be solvable; but it's a meaningful distinction.
FrickinLazerBeams t1_j068q2s wrote
Reply to comment by isleepinahammock in National Ignition Facility (NIF) announces net positive energy fusion experiment by Robo-Connery
>Highly precise, high-power, high-efficiency lasers have all sorts of applications, including in manufacturing, communications, even things as mundane as drilling deep holes. If we get the tech needed for a pulsed-fusion plant, these lasers are going to be used everywhere, not just in fusion plants.
These lasers have absolutely no use in any of those applications. You're talking about a totally different definition of "high power".
>And that's the real concern. You have to worry about some terrorist group buying some surplus mining or manufacturing equipment, and then using it to breed lead into plutonium. Or, if the knowledge is public enough, they might just build the lasers themselves. It represents a path to nuclear weaponry without ever having to get a hold of an ounce of uranium.
That's hilariously absurd. Never will any kind of laser used for manufacturing, telecom, etc. be usable for laser driven fusion or nuclear weaponry. That's not how any of this works.
FrickinLazerBeams t1_j068cce wrote
Reply to comment by isleepinahammock in National Ignition Facility (NIF) announces net positive energy fusion experiment by Robo-Connery
>What's the proliferation risk of pulsed fusion technology?
Absolutely zero.
FrickinLazerBeams t1_j0686rz wrote
Reply to comment by Robo-Connery in National Ignition Facility (NIF) announces net positive energy fusion experiment by Robo-Connery
I think magnetic fusion is more likely to provide a path to power generation, but this:
>There is no comparable reduction available for the lasers on ICF machines which will always need to be pumped inefficiently.
is simply not true at all. Diode pumping is dramatically more efficient. Flashlamps are simply easy and reliable.
FrickinLazerBeams t1_itladd6 wrote
Reply to comment by Ruca705 in Study finds brain changes associated with ADHD remission. As the brains of those with ADHD mature, some individuals may repetitively engage in strategies that compensate for symptoms. These repetitive behaviors may result in the brain changes seen in those who went into remission. by Wagamaga
Yeah there's definitely no "remission" that I've ever heard of, and certainly not experienced. I'm much more functional now than I was as a child, but it's not because the ADD is gone. I'm simply better at dealing with it (and also medicated).
FrickinLazerBeams t1_je7j4hv wrote
Reply to comment by B4SSF4C3 in Ultramassive black hole over 30 billion times mass of our sun has been spotted. The discovery had been made possible thanks to a phenomenon known as gravitational lensing — the first time a black hole has been spotted in such a way. by Wagamaga
Yes. That is what is generally understood as the size of a black hole.