ridgeguy

33 ms·

361.
by ridgeguy 8y ago
I view economics as the gating factor. If, as you posted downthread, you don't have lifetime financial security, don't drop your tenured job. This is like the preflight "put on your own oxygen mask before you assist others wi
362.
by ridgeguy 8y ago
>...nine times faster than a fired bullet... I don't think so. A NASA publication [1] gives the SOFI piece impact velocity as about 800 feet/sec. Rifle bullets reach 2.5K - 3K fps muzzle velocity routinely. [1] https:/&#
363.
by ridgeguy 8y ago
I agree. It was crabbed a few degrees to its left while aligned with the runway (3:24 - 3:33 in GP's video). That would indicate crosswind from the aircraft's left.
364.
by ridgeguy 8y ago
They really do make it look easy, don't they? These days, it seems like the hardest part of a SpaceX launch is maintaining the drone recovery ship video link. Even though it looks easy, it's never gonna get old. Not for me, anyway
365.
by ridgeguy 8y ago
I don’t agree. In your example, being in someone else’s home doesn’t put you in a public space for purposes of recording consent. A dumb recording device can’t do something illegal without its owner’s/user’s affirmative action. If the
366.
by ridgeguy 8y ago
So I’m sitting in my office, talking with a colleague… “OK, Google patent 9,876,543 and see if we’re infringing.” or if my colleague is named Alexa… “Alexa, let’s hammer those idiots.” I think the first would wake Google Home. I guess Alexa
367.
by ridgeguy 8y ago
re inquiries as to specifics: both cases involved treatment-resistant depression with acute suicidal crises. One is a family member, the other a friend-of-friend. Many of you are aware that Ketamine has been used off-label for rapid treatme
368.
by ridgeguy 8y ago
Access to medical research articles through Sci-Hub has saved the lives of at least two people whom I know. Well done, Ms. Elbakyan.
369.
by ridgeguy 8y ago
I hope these are archived as they accrete content. Assembling and torrenting sub-petabyte archives can't be easy, but it beats stirring the ashes of a digital Alexandria to find snippets of knowledge. Donating to Sci-Hub today.
370.
by ridgeguy 8y ago
Yeah, it would have. It's just that the ghost of my 5th grade English teacher would have emerged from the mists to point out that "they" is plural, whereas I was referring to an individual. Can't win.
371.
by ridgeguy 8y ago
Well said, thank you. Few seem to understand how debilitating treatment-resistant depression can be. Source: wife's cousin, who when s(he)'s ok, is super smart, capable, and lives a good life. When s(he)'s in the depression h
372.
by ridgeguy 8y ago
It's long settled that biochemistry affects mood, depression, and a host of other difficulties people encounter. It makes no sense to me to exclude agents that affect biochemistry ('drugs') from consideration as having therap
373.
by ridgeguy 8y ago
He's utterly clueless. Having two identities can save your life if you're a battered woman. Or of the wrong political persuasion in some countries. I'm ok not 'liking' Zuckerberg's idea of integrity.
374.
by ridgeguy 8y ago
Celestial navigation works in the daytime. Star tracking was part of the SR-71 G&C system. The stellar inertial platform was aligned preflight with the aircraft at rest. Day or night made no matter. It had many initialization modes, at
375.
by ridgeguy 8y ago
Older fluorescent lights (those run off a magnetic current limiter, or "ballast") flickered at 120Hz if they were connected to a 60Hz power source. Every time the voltage declined below a level needed to maintain a discharge, the
376.
by ridgeguy 8y ago
Brief etymology of "professor": From Latin "profiteri", to the form "profess-" meaning "declared publicly", and to "professor", then to Late Middle English as "professor". So a pro
377.
by ridgeguy 8y ago
Mainly aerodynamic forces. The heating event is so quick there's not time for the interior of a sizable meteor to warm up. Meteors' thermal conductivity and diffusivity are generally pretty low. Even at 25km altitude, aerodynamic
378.
by ridgeguy 8y ago
You're in good company: "There's a divinity that shapes our ends/ Rough hew them how we will." Hamlet, to Horatio, in Hamlet Act 5 Scene 2.
379.
by ridgeguy 8y ago
I think it's different in the US. Post-incident efforts to repair usually aren't considered an admission of responsibility in US tort law. Social policy reason is to encourage repair of hazards, rather than reinforce the circumsta
380.
by ridgeguy 8y ago
My tour was earlier (1969-1970), when Bill Pickering ran the place. Not sure about the proportion of multiple degree-holders, but regardless, your last sentence fits it as well then as now.
381.
by ridgeguy 8y ago
An idea for you as you serve whatever time remains to you... Go learn how to make a good Sauterne, in the mold (as it were) of Chateau d'Yquem. People may drink it a couple of centuries from now and thank you for it. About 20 years ago
382.
by ridgeguy 8y ago
Even if not reactive in the sense of forming chemical bonds with cellular material, interactions through mechanisms like Van der Walls forces could change 3D shapes of enzymes, altering their reactivity. If those enzymes participate in cell
383.
by ridgeguy 8y ago
It's not personal, but it's no less an attack for that. I hope death ultimately resolves to an engineering problem.
384.
by ridgeguy 8y ago
"Nine Billion..." is a great short read on the perils of being on-site IT support. ...and 'Nightfall' is for certain an example of the perils of astronomy. Loved them both when I read them as a kid.
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by ridgeguy 8y ago
>I'm genuinely making an effort to understand how this is relevant to someone with a cancer diagnosis. Not having faced such yet, I can't say for sure. But I've noticed among a few friends I've lost to illnesses that
386.
by ridgeguy 8y ago
You're in good company in my household. We have four MBPs (2015, 2012, 2x2011). Not getting rid of them until, as you said, Apple starts making laptops I want again.
387.
by ridgeguy 8y ago
App store tells me it requires MacOS 10.14. Any chance of eventual 10.13 compatibility?
388.
by ridgeguy 8y ago
Agreed. I'm grateful for the shared story. It's an example of one way to deal with what comes to us all. I'm always thankful for reports by those further down the road.
389.
by ridgeguy 8y ago
>What? Agreed. See Theranos.
390.
by ridgeguy 8y ago
To amplify just a bit - I watched the linked video. The parallel that struck me was the description of Korolev as an amazingly multitalented person. I regard Musk as a polymath as well. It interested me that these two chose work that requir

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