spqr0a1

6 ms·

1.
by spqr0a1 1y ago
Beyond regulating brightness, 4 US states ban billboards entirely. (Hawaii, Alaska, Vermont, & Maine)
2.
by spqr0a1 2y ago
While a bee stinger may get stuck in you, that's not so when stinging fellow insects. The barbs don't catch on an exoskeleton like they do for thick and elastic mammalian skin. An elegant way to deliver more venom to larger target
3.
by spqr0a1 3y ago
Tungsten carbide jewelry is a mixture of tungsten carbide powder and a metal binder, typically cobalt or nickel. The metal binder is electrically conductive and thus susceptible to the induction heating you felt.
4.
by spqr0a1 3y ago
It's more than just the chain length. The most common synthetic rubbers are styrene-butadiene copolymers. Natural rubber is polyisoprene. While it is true that shorter chain synthetic polyisoprene is available, it is a much smaller par
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by spqr0a1 3y ago
Surely the process of using fingers to measure discrete pulses is digital.
6.
by spqr0a1 4y ago
Ethane (R-170) is a fine low-temperature refrigerant for lab equipment. The performance characteristics are at least as good as halocarbon refrigerants. The main drawback is flammability but propane has a similar concern and is already wide
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by spqr0a1 4y ago
This is largely a story about excessive copyright duration. The casting requirement for this 70 year old play is based on legal threats by the estate of the author who died over 30 years ago.
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by spqr0a1 4y ago
A correction. The Kudo et al., 2002 study found that estradiol lowered the filtration rate in ovariectomised rats. But supplemental estradiol did improve the clearance rate for intact male rats.
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by spqr0a1 4y ago
Unfortunately this sort of mining has long-term impacts on deep sea ecology. It causes substantial loss of species diversity and activity even 26 years later, with this paper estimating recovery will take at least 50 years for a small test
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by spqr0a1 4y ago
I've found this site helpful. Not exhaustive, but reasonably accurate for the types it lists. https://www.pickyourown.org/USharvestcalendar.htm
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by spqr0a1 4y ago
These days I use the "hourly graphical forecast" from the National Weather Service. I've found it to be at least as accurate as Dark Sky and easy enough to display 3 images side by side and refresh periodically to always have
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by spqr0a1 4y ago
Most of evolution is repurposing existing infrastructure for different purposes; The details are still interesting.
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by spqr0a1 4y ago
I had someone try the same grift to me in NYC but they went for my decoy pocket that only had used tissues.
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by spqr0a1 4y ago
Plenty of fiberglass uses polyester resin rather than epoxy.
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by spqr0a1 4y ago
The largest unit demonstrated in this video output 35 watts. Not quite 5 megawatts, lest anyone get the wrong idea. That's mentioned in the paper linked in the description. https://arc.aiaa.org/doi/abs/10.2514
16.
by spqr0a1 5y ago
The information density is even higher than that (double), because one pair of bases has 4 possible states. The pair A-T is symbolically distinct from T-A, for example.
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by spqr0a1 5y ago
It boggles my mind that the general public, media, and even healthcare workers treat N95 mask as if they are as good as it gets. Industry routinely uses elastomeric half- and full-face respirators with P100 filters, and they have been easy
18.
by spqr0a1 5y ago
Or using a better source video. As there's no way the original film was interlaced.
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by spqr0a1 5y ago
There are dozens of bumblebee species in Vermont, but Bombus impatiens is particularly common. That's much more likely than B. pensylvanicus mentioned in the article.
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by spqr0a1 5y ago
HEPA filters were developed for radioactive dust during the Manhattan Project. Only several years later did the technology get declassified and started being used in biology and medicine.
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by spqr0a1 5y ago
In New York the majority of land use regulations are at the town/city level rather than county or state.
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by spqr0a1 5y ago
~40% of Americans live in states that have laws against wearing a mask in public spaces. Preventing people from protecting themselves is absolutely a live issue. http://www.anapsid.org/cnd/mcs/maskcodes.html
23.
by spqr0a1 6y ago
If it's optimizing for combustion cars it won't be a perfect match for electric. The ICE route will penalize intersections and hills due to engine idling and lack of regenerative braking.
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by spqr0a1 6y ago
In case anyone is wondered why there is benzene in hand sanitizer: Ethanol forms an azeotrope with water, which makes it impossible to dry completely without further processing. Benzene forms its own azeotrope with water at an even lower bo
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by spqr0a1 6y ago
This is the basis for customary nail sizes, as it's (for example) how many 6d nails you could get for 6 pennies in medieval England. https://en.wikipedia.org/wiki/Penny_(unit)
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by spqr0a1 6y ago
iGPU performance is currently limited by memory bandwidth. Not much point in upgrading from Vega until DDR5 is used.
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by spqr0a1 6y ago
The half life of C-14 is much shorter than geologic formation time for coal. Coal's radioactivity is due to primordial nuclides and their decay chains.
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by spqr0a1 6y ago
There are thousands of native bee species in the Americas beyond bumblebees. Including sweat bees, stingless bees, orchid bee, and carpenter bees. https://bugguide.net/node/view/475348
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by spqr0a1 7y ago
Peaches and pineapple are some of the few foods still distributed in tin-plated cans without a plastic lining.
30.
by spqr0a1 7y ago
There are plenty of wood stoves available these days with what are effectively catalytic converters. Wood stove particulate emission can be a lot lower than it used to.

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