DaveE's latest activity
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Google says this: And I use "sunk" as a verb, like "the whale sunk the boat". -
DaveE reacted to Dale's post in the thread Other Struggling with illness and existential despair with
Like.
Maybe you need a psychiatrist instead of a psychologist. Many mental illnesses begin to manifest severe symptoms at around your age... -
DaveE replied to the thread Today I Learned.This was (is?) a significant human factors design issue with aircraft cockpit displays. In older or cheaper aircraft the gauges were...
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DaveE replied to the thread Undergrad What happens to a person's body in space without a spacesuit?.While maybe a bit off topic*... By "swim around forever" I think you mean without decompression stops in your ascent. Time at depth...
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DaveE replied to the thread Undergrad What happens to a person's body in space without a spacesuit?.The article above is in this ball park. Recall that 33 feet of water is 1 atm. "Air embolism can occur in as little as 4 feet (about 1...
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DaveE replied to the thread Undergrad What happens to a person's body in space without a spacesuit?.https://www.merckmanuals.com/home/injuries-and-poisoning/diving-and-compressed-air-injuries/barotrauma
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DaveE replied to the thread Undergrad What happens to a person's body in space without a spacesuit?.Sorry, y'all missed my point. Scuba divers know that reduced pressure creates air emboli in you blood. Anyway, I don't think you can...
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DaveE replied to the thread Undergrad What happens to a person's body in space without a spacesuit?.Clearly not a scuba diver asking. Even though space is cold, it's also a pretty good insulator. Heat transfer is from radiation and...
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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
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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...
