mdturnerphys

19 ms·

61.
by mdturnerphys 5y ago
There are a few experimental physicists on here. I work for Microsoft now, but I found out about HN from a grad school officemate, who found out about it from a YC grad who did a postdoc in our research facility. I credit HN with helping
62.
by mdturnerphys 5y ago
I have one memory of Napster. My senior year of HS, 2000-2001, one of my teachers told me I could skip an assignment in exchange for helping her install it on her (school-owned) computer. It would make a better story if the class was Ethi
63.
Great Unconformity(en.wikipedia.org)
5 points by mdturnerphys 5y ago|0 comments
64.
by mdturnerphys 5y ago
I wonder if the right weather conditions could result in enough atmospheric refraction to make the mountain visible.
65.
by mdturnerphys 5y ago
Related: https://en.wikipedia.org/wiki/Free_will_theorem
66.
by mdturnerphys 5y ago
That is evidence for dark matter, not dark energy.
67.
The centerpiece of Microsoft’s new expansion is 550 feet underground(fastcompany.com)
1 points by mdturnerphys 5y ago|0 comments
68.
by mdturnerphys 5y ago
Previous discussion on similar article: https://news.ycombinator.com/item?id=16936769
69.
by mdturnerphys 5y ago
Good question. They say that they need 10^-11 pascals. The pressure in low earth orbit is 10^-8 pascals [0], but the suggestion is to put it at a Langrange point (L1 or L2), where the pressure should be much below that. [0] https:/&
70.
by mdturnerphys 5y ago
I think finding someone reputable to publicly attest to the legality (which appears questionable in the US) will be difficult. The best bet may be law school faculty who could write a paper on the subject.
71.
by mdturnerphys 5y ago
You create matrices that represent the operator. For instance, suppose you had a 1D function and were interested in the evenly spaced points (x1, x2, x3, x4, x5), with the function values at these points being y1 y2 y3 y4 y5
72.
by mdturnerphys 5y ago
I like the Shark brand. I get it at a local Asian market, but you can also find it online [0]. [0] https://importfood.com/products/thai-sauces-condiments/item/...
73.
by mdturnerphys 5y ago
There's an nice episode of a Wyoming PBS series that covers similar work in Wyoming: https://www.youtube.com/watch?v=KZyD74vNdcc .
74.
by mdturnerphys 5y ago
Yes, the Slavic "хлеб", etc., appear to be cognates with the Germanic "loaf", etc. Wiktionary [0] says they both come from Proto-Germanic "hlaibaz" (reconstructed [1]). [0] https://en.wiktionary.org
75.
by mdturnerphys 5y ago
I did my PhD in the Eöt-Wash group [0] at the University of Washington, where many of the "world's best" torsion balance experiments have be done: tests of the equivalence principle, measurement of gravity at short distances,
76.
by mdturnerphys 5y ago
Apiezon sells a vacuum putty (Apiezon Q) that can be used for temporary seals down to 10^-4 torr. Best I can tell it's a mixture of bentonite clay and petroleum jelly.
77.
by mdturnerphys 5y ago
Not just equipment you have to enter. This is used in situations with "stored energy" or other systems that need to be turned off or otherwise disabled for safe maintenance. There are multi-lock hasps that can be used if multipl
78.
Logjam - A journey to the heart of the lumber shortage(slate.com)
2 points by mdturnerphys 5y ago|0 comments
79.
by mdturnerphys 5y ago
If you're insterested in other scientific instruments built (mostly) from Legos, take a look at the watt/Kibble balance designed by former colleague of mine and his team at NIST: https://aapt.scitation.org/doi&#x2F
80.
by mdturnerphys 6y ago
This was finally done away with in 2011. I only found out because I was surprised that our second child's SSN (issued in 2012) had a different prefix than that of our first child (2009).
81.
Facebook Reality Labs: The Next Era of Human-Computer Interaction(tech.fb.com)
1 points by mdturnerphys 6y ago|0 comments
82.
by mdturnerphys 6y ago
Maybe in the US, but I've seen some horribly dirty waterways in other countries.
83.
The Craft of Experimental Physics(jameshedberg.com)
3 points by mdturnerphys 6y ago|1 comments
84.
by mdturnerphys 6y ago
That's the cost for one-time use of the helium. If you're running a liquefier the cost is much lower, since you're recycling the helium, but it still "costs" ~400W to cool 1W at 4K.
85.
by mdturnerphys 6y ago
Those are probably for food allergies, not allergies to cosmetics.
86.
by mdturnerphys 6y ago
I just bought an Aroma pressure cooker [0] to replace our 15yo Aroma rice cooker that had reached its end of life after multiple uses per week (the cord and the lid latch both broke within a couple months of each other). It does a great jo
87.
Alcohol-free hand sanitizer quickly and effectively inactivates SARS-CoV-2(journalofhospitalinfection.com)
2 points by mdturnerphys 6y ago|0 comments
88.
by mdturnerphys 6y ago
At the bottom: "All times are shown in your local timezone unless otherwise noted."
89.
‘Sistine Chapel of the ancients’ rock art discovered in remote Amazon forest(theguardian.com)
7 points by mdturnerphys 6y ago|0 comments
90.
by mdturnerphys 6y ago
You're getting downvoted because this isn't something that Peter is claiming to be an expert in. He's an attorney, not an economist.

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