DaveE's latest activity
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DaveE reacted to Baluncore's post in the thread Undergrad What happens to a person's body in space without a spacesuit? with
Haha.
With age, the skin becomes wrinkled. Space works faster than Botox. May I introduce you to Monsieur Bibendum, the Michelin man. -
DaveE replied to the thread High School Reducing loss of energy for Lasers.Alta used either 257nm or 244nm from a large frame ion laser, I don't recall. Diodes have a tough time with the shorter wavelengths...
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DaveE replied to the thread High School Reducing loss of energy for Lasers.I guess I'm not surprised I'm out of date here. I've been out of the tech game for a while now. We sold Ion lasers to Etec Systems* for...
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DaveE reacted to gentzen's post in the thread High School Reducing loss of energy for Lasers with
Informative.
No, high end masks are written by e-beam lithography, either by VSB (variable shaped beam) machines, or by electron multi-beam (grey... -
DaveE replied to the thread High School Reducing loss of energy for Lasers.Yes. Lasers are used at many steps, each tailored to their very specific task. There ate many applications; mask creation and...
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DaveE reacted to bhobba's post in the thread Undergrad "The wavefunction never collapses" with
Like.
Indeed: Thanks Bill -
DaveE replied to the thread High School Reducing loss of energy for Lasers.Yes, they do. Single frequency TEM00 propagation is a thing people have been using for nearly 50 years. About as perfect as anything in...
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DaveE replied to the thread High School Reducing loss of energy for Lasers.Do you mean the laser beam, or the entire laser? What's in the vacuum? There are some laser applications that require a vacuum, but...
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DaveE replied to the thread Basic skills that kids are lacking.I'd move it. Although, as @symbolipoint said, it might, or has, drifted off topic. The other good alternative is to close it and wait...
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You are probably thinking about organisms that have reversed molecules (like D vs. L amino acids), not the organisms themselves, like...
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DaveE replied to the thread Basic skills that kids are lacking.yes, Situs inversus.
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DaveE reacted to PeterDonis's post in the thread Undergrad "The wavefunction never collapses" with Like.
Not according to MWI proponents. They have an explanation of why we only observe measurements to have single outcomes, that, to them, is...
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I think a clock and a speedometer (or tachometer, which as a one-time autocrosser is more what I was thinking about) are fundamentally...
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DaveE replied to the thread Basic skills that kids are lacking.Oh slammed dude. He thinks you're THAT old! LOL.
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Can we move this to the teaching forum?