FactChecker's latest activity
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FactChecker replied to the thread A question about quantum entanglement.I thought that Bell's theorem/test ruled out the existence of local hidden variables. -
FactChecker reacted to Mark44's post in the thread Hi! Can someone explain about Differential Equations? with
Haha.
And a day late? :oldbiggrin: -
FactChecker reacted to .Scott's post in the thread Undergrad Question about increasing laser power with
Informative.
If I catch the spirit of you question, you will be gratified to discover that one can design a laser that will continue to operate as it... -
FactChecker reacted to DaveE's post in the thread Undergrad Question about increasing laser power with Informative.
Home built confocal (and similar) resonators aren't THAT finicky. Many people have built low performance, low reliability, and often...
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FactChecker reacted to Roberto Pavani's post in the thread Undergrad Question about increasing laser power with Informative.
What you're describing is essentially a passive Fabry-Pérot cavity. This is actually a well-known setup — the intracavity field can be...
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FactChecker reacted to DaveE's post in the thread Undergrad Question about increasing laser power with Informative.
Virtually all lasers use this, or similar, techniques internally to function optimally. You won't make their design better by adding...
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FactChecker reacted to Roberto Pavani's post in the thread Undergrad Question about increasing laser power with
Like.
The answers above are correct. Just adding a safety note: any laser above ~500 mW (Class 4) requires proper eye protection, not just... -
FactChecker reacted to .Scott's post in the thread Undergrad Question about increasing laser power with Informative.
There are two kinds of lasers, continuous wave (CW) and pulse. Since you're thinking of CW, that is what I will address. Most CW...
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FactChecker replied to the thread Undergrad Question about increasing laser power.I believe that is how they work, up to a certain power (20W?). Trying to do that too much starts to melt parts. I am just a casual...
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FactChecker reacted to Demiurge's post in the thread A question about quantum entanglement with Informative.
What you are asking shouldn't possibly exist in a classical-physics universe. But science hasn't settled on a particular interpretation...
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FactChecker replied to the thread Ubuntu slow for compute-intensive applications?.Have you looked at the top command output or other performance monitoring numbers? ( see...
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FactChecker reacted to Dale's post in the thread High School The problem of energy appearing out of nowhere with Like.
You could have a universe that obeyed relativity and did not respect the conservation of energy. Such a universe would also violate the...
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FactChecker reacted to bob012345's post in the thread High School Geometry Puzzle: Cut The Figure to Make Two Identical Parts with Like.
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FactChecker reacted to Roberto Pavani's post in the thread A question about quantum entanglement with Like.
Just a small note: von Neumann was actually very interested in the foundations of QM (collapse postulate, hidden variables proof, etc.)...
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FactChecker replied to the thread High School Geometry Puzzle: Cut The Figure to Make Two Identical Parts.Can you flip one, so that a clockwise outer perimeter becomes a counter-clockwise perimeter? ADDED: Sorry. The one I thought of with a...