gshubert17

8 ms·

31.
by gshubert17 3y ago
ISRU - In-Situ Resource Utilization The farther humans go into deep space, the more important it will be to generate products with local materials, a practice called in-situ resource utilization.
32.
by gshubert17 3y ago
Global advertising spending is around $750 billion. Assuming advertisers believe most of their money is well-spent, can I infer the percentage of human beings that actually do ignore advertising is small?
33.
by gshubert17 3y ago
Ariel and William James Durant, authors of "The Lessons of History", where the quote appears on page 12, itself a quote of their earlier volume 6 from "The Story of Civilization", specifically "The Reformation"
34.
by gshubert17 3y ago
Yes, Martin is now Lockheed-Martin. Other tech companies included IBM, Hewlett-Packard, Oracle, Level3, EchoStar, DISH, and others.
35.
by gshubert17 3y ago
Yes. Here is the list of music on the Voyager disks: https://voyager.jpl.nasa.gov/golden-record/whats-on-the-reco...
36.
by gshubert17 3y ago
A similar tragedy was losing an effective treatment for scurvy, later rediscovered and connected with Vitamin C. https://idlewords.com/2010/03/scott_and_scurvy.htm
37.
by gshubert17 4y ago
I was surprised that the 52 KB PDF compressed to only 45 KB on my machine. There seems to be about 13 KB of text; perhaps the rest is the illustrations?
38.
by gshubert17 4y ago
The mass of the Greenland ice sheet is about 2.5 E15 tonnes. The average melt rate between 2003 and 2016 was about 2.5 E11 tonnes/year. At this rate it would take 10,000 years to melt completely. But the melt rate is increasing with in
39.
by gshubert17 4y ago
Yes, the Latin root means "three ways", such as an intersection of foot paths where people who met would stop to exchange "trivia".
40.
by gshubert17 4y ago
The Federal Reserve Bank's current balance sheet (as of last Thursday, https://www.federalreserve.gov/releases/h41/current/h41.htm ) shows they hold $4.5 trillion in Treasury notes and bonds and $2.6 tri
41.
by gshubert17 4y ago
> reserves are for more than a rainy day fund. Exactly. Many HOAs are now required to get periodic reserve studies that calculate predicted maintenance costs going out sometimes 30 years. Association Reserves did our study (<300 homes
42.
by gshubert17 4y ago
I got a Master's degree from St. Johns liberal arts program in my 50s, in part to complement a Master's degree in computer science from three decades earlier, together to help me be a better teacher of high school computing. For m
43.
Boeing to be arraigned in court on criminal charges over 2 Max jet crashes(pbs.org)
5 points by gshubert17 4y ago|0 comments
44.
by gshubert17 4y ago
Similar translations from the Greek by Andy Gaus titled "The Unvarnished Gospels" and "The Unvarnished New Testament". https://en.wikipedia.org/wiki/Andy_Gaus
45.
by gshubert17 4y ago
I think the legal term voluntary means the assailant willed the action taken. For example, first-degree murder involves forethought and a desire to see the victim dead. Involuntary murder or manslaughter covers accidents without malice.
46.
by gshubert17 4y ago
Author William Deresiewicz some months ago commented on why academics (administrators, professors, and students) push this view in "American Education's new dark age" https://unherd.com/2022/03/ameri
47.
by gshubert17 4y ago
Oldcomputerbooks.com focuses on computer material from the 1940s through about 1975. Some years back they bought my volumes of Knuth's TAOCP and one book by Edsger Dijkstra, _The Discipline of Programming_, but not anything more recent
48.
by gshubert17 4y ago
Medicare covers a lot, but excludes a lot (glasses, hearing aids, long-term care, for example). Add in Medicare premiums, supplemental premiums, and co-pays, and it's not inexpensive.
49.
by gshubert17 4y ago
Indeed, Neal Stephenson in _Anathem_ (2008), in describing an alternate world (in which his "reticulum" is our "network") wrote "Early in the Reticulum—thousands of years ago—it became almost useless because it was
50.
by gshubert17 4y ago
Pirsig's "Zen and the Art of Motorcycle Maintenance", which I read while recovering from flu one year in college. His description of the road trip from Minnesota to California motivated me to mark his path on my highway atlas
51.
by gshubert17 4y ago
Indeed, Neal Stephenson in _Anathem_ (2008), in describing an alternate world (in which his "reticulum" is our "network") wrote "Early in the Reticulum—thousands of years ago—it became almost useless because it was
52.
by gshubert17 4y ago
Yes, it's a big step for parents to leave the default neighborhood school, look over the various options, even staying in the same city, let alone moving to a different district. I agree with you there. The admissions people take some
53.
by gshubert17 4y ago
I taught computing for 13 years at a public charter high-school. It doesn't charge tuition (it's a public school), but does have a dress code, and a commitment to a curriculum based on E. D. Hirsch's core knowledge program in
54.
by gshubert17 4y ago
The Oakland example was one cited in Time magazine recently. One of the teachers who earlier advocated eliminating phonics was described as now "heading up a campaign to get his old school district to reinstate many of the methods that
55.
by gshubert17 4y ago
A post here a week ago of a book review https://lareviewofbooks.org/article/the-making-of-a-prophet/ got no comments at that time, but caught my eye. It seems the author, Alec Nevala-Lee, of the biography _Invent
56.
by gshubert17 4y ago
Rain and snow which fall on the western slope do not inevitably flow westward. There are a number of trans-mountain diversions of Colorado River water eastward under the continental divide. Denver Water alone collects 50% of its drinking wa
57.
by gshubert17 4y ago
"Every gun that is made, every warship launched, every rocket fired signifies, in the final sense, a theft from those who hunger and are not fed, those who are cold and are not clothed. "This world in arms is not spending money al
58.
Science and Civil Liberties by Carl Sagan (1987)(quillette.com)
2 points by gshubert17 4y ago|0 comments
59.
by gshubert17 4y ago
I think I found a small typo, where you have delta (instead of delta/2) in the third line. I believe it should be sqrt(h(2R+h))-R * arccos(R/(R+h))-delta/2 = 0 This can be solved for h given delta numerically, such as with a
60.
by gshubert17 4y ago
Using 2200 mph (not 22,000) I get about 0.6 g acceleration. What surprised me is that to do a 180 would take 314 miles / 36 miles per minute or 8.5 minutes.

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