ISL

Might it also be associated with fewer deaths?

Those materials exist (see Apiezon vacuum grease and Lesker vacuum sealant). In less-demanding or desperate applications, they can work.

But like similar last-ditch repairs (think automobile muffler tape or radiator sealant), they only occasionally last. Usually the best thing to do is to go actually fix the problem.

The above advice assumes you're trying to maintain high vacuum (10^-5 torr or lower pressure). At low vacuum (10^-3 torr and above), that trickery can work wonders.

I imagine that if one has enough capital to fully arbitrage an opportunity, it is possible to

A) capture the entire available upside

B) estimate how large that opportunity might be, and not attempt to over-stoke it.

C) by capturing the entire opportunity, prevent the signal from being visible to the broader market. The only sign that a need is being met could be trade-volume rather than price movement.

Old smartphones rarely had IPX ratings.

To that list, I'd add xdiskusage.

:(. I've been happy with NUCs. I've been very happy to pay a premium for a product I'd certain would be consistent.

In fact, I've recently been trying to find a NUC-like system that could accommodate a 3.5" drive -- does anything modern exist?

A LaserJet 4mp with a USB interface is all many people need. Bonus points for wifi printing.

Very cool. Thanks!

I am and could, but can't make the time for the inevitable support issues that pop up. If there's a COTS system available, I'd rather spend my time in the mountains :).

The upside of a home-built system is truly serious logging, something that seems to be a nonexistent priority for any commercial option I've yet encountered.

The yardstick is indeed the light-travel time.

Gravitational waves really do change the time it takes for light to travel between two points. We use light travel-times to measure distances, thus we say that the distance between the points has changed.

If it feels counterintuitive for spacetime to be changing, that's good. It is outside our human experience and perception. The strongest gravitational waves ever observed by scientists passed through everyone who was alive in 2015. None of those people noticed before the instruments registered a detection.

Those biologists might have huge image archives, even if they use microscopes.

This approach alone will not get you the peer-review necessary for colleagues to take you seriously nor the publication record necessary to get a job.

Scratches head.

  [ISL@home:~]$ lscpu | grep -i intel
  Vendor ID:                       GenuineIntel
  Model name:                      Intel(R) Core(TM) i5-3330 CPU @ 3.00GHz
  [ISL@home:~]$ uname -a
  Linux home 6.1.0-6-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.15-1 (2023-03-05) x86_64 GNU/Linux
  [ISL@home:~]$ 

The i5-3330 went EOL in 2014, released in 2012. An up-to-date first-class Debian system on decade-old hardware is just a sudo apt update; sudo apt dist-upgrade away.

It is a real bummer that the major hardware vendors choose not to open up their devices when they reach end of life. Phones and old hardware are frequently viable for double their enforced service-lives or longer.

Pulsars are dense compact spinning objects.

From your link: "Pulsars are neutron stars that rotate at very high speeds and appear to emit radio pulses at extremely regular intervals. The pulses are actually all we see of a radio beam that is focused by the star’s magnetic field and swept around like a lighthouse beacon."

I never found a way to buy pizza with crypto without maintaining a FIFO ledger I could file with the IRS detailing every single transaction.

Without that onerous administrative tax-compliance requirement, I'd have made many purchases with bitcoin.

Stress-corrosion cracking would like to have a few words about edge-cases in metallurgy.

https://en.wikipedia.org/wiki/Stress_corrosion_cracking

Scientists routinely request more grant money for research whose difficulty exceeds initial estimates. You're already doing an incredible thing; it is okay to ask for more assistance.

This piece misses the realities of funding and labor for top-tier science.

Labor: Graduate students are inexpensive and doing the work for love. Without them, science becomes extremely expensive (and more effective, but not more-effective enough to, apparently, be worth the price of staff scientists).

Funding: Good luck getting the NSF to fund your proposal at actual market rate, especially if you don't intend to educate any graduate students.

There is a lot of societal value in basic science, but the returns happen on decadal and multi-decadal scales. Few non-governmental partners, other than philanthropic former scientists or science philanthropists (thank you, Keck and Simons Foundations!) have the vision and commitment to reap and sow scientific progress.

Science has always been free to leave the university, and it often does, but the lack of self-emergent long-term science institutions (Where's the private NIST, LHC, LIGO, or Webb?) suggests that it's a tough road to travel. When there's enough near-term promise, as in quantum-computing or genomic sequencing, industry can leap in and drive things forward.

Is that price volatility real?

Automatic lane-keeping assist is generally turned on at all times with modern cars.

For each person, finding those bonds is a remarkable and life-changing event.

In the short term, the solution may be reputation, distributed by keychain.

When author C submits a paper and they're unknown to the journal, the journal consults the keychain to see whom has vouched for C as a credible researcher. If authors A and B have vouched for them, and A and B are in similarly good standing, C is regarded as being in good stead and the editorial process can move forward as usual.

If C is later found to have maliciously faked data, it isn't just C who gets dinged on the keychain, so do A and B by extension, providing an enforcement mechanism.

This is, in effect, how it has worked for centuries. Editor D calls/writes to A and B to ask, "hey, there's this new author C with a provocative paper that's in your subject area, but I've never heard of them. Are they the real deal?" If A and B vouch for C, but C turns out to be a fraud, Editor D will take any future consultation with A and B with a large grain of salt.

It is possible that AI will soon be able to generate entirely-credible looking papers. What AI will struggle to do, until it starts funding research of its own, is to generate novel research that reflects whatever is actually true of nature. A reputation system is the last bulwark against entropy, if no automated tools can sort wheat from chaff.

Lest you think versions of these systems aren't already in place, try posting something to the arXiv as a new author..... https://info.arxiv.org/help/endorsement.html

Both sides may have spent a substantial fraction of that in attorneys' fees.

If one country can put a satellite somewhere, another country can readily put a bomb there. It is especially easy if the satellite is continually broadcasting its position.

If drift/noise is low-enough, it can be used for a long-enough period to be viable.

Ring gyros and precision accelerometers have been used in inertial navigation systems for ages. This is likely another step along that path.

China's quantum-encrypted communication network. The US probably has one, too, but the Chinese publication rate on the subject for the last decade or so has been remarkable.

As long as the encrypted communications are logged and available in accordance with public records-retention policies, using a good encryption system sounds like a good thing, no?

A long-press for flagging/hiding would be great (or even a confirmation-screen).

What happens when you accidentally get a pebble or grain of sand inside these foldable phones and squeeze/sit on them?

I've never done this arithmetic before. With a massively inefficient usage of a french-press, I get something like three cups of coffee from a press and perhaps 7 fillings of the press from a bag from my local store. That coffee is $6 USD when it's on sale and $8 when it's not.

Neglecting the cost of the $20 press, the water, the kettle, the rinse-water, the mug, and the heating of the water, that's about $0.33 USD / cup?