hwillis

18 ms·

181.
by hwillis 2y ago
You're overcomplicating it; you only need a single clutch and in/out springs[1] to do this. If you're spinning at 4000 rpm and your springs cover 6 degrees of rotation, then your clutch needs to be able to actuate at 4000 Hz
182.
by hwillis 2y ago
> If you measure it across a high impedance then it looks like a voltage spike. If you measure it across a low impedance then it's not necessarily much of a spike. "Disconnect" implies an open circuit and high impedance.
183.
by hwillis 2y ago
It's plenty real, and it matters for more than just strength. Cold rolled grain oriented electrical steel has better magnetic properties than non-oriented steel and is used in some applications where the field is in a straight line.
184.
by hwillis 2y ago
> Can you forge metals in a highly controlled and directed magnetic field where you can orient the grain/alignment of atoms/fields in whatever direction you want. This is how you make magnets. "Soft" ferromagnets hav
185.
by hwillis 2y ago
annealing, which resets the grain structure, happens at a lower temperature than melting or sintering.
186.
by hwillis 2y ago
The second moment of area is quadratic with thickness (t^2), so 250/8" plate. But in reality 2-3x more than that, because at that scale steel gets a bit... goopy.
187.
by hwillis 2y ago
> Forgings have the added advantage of variable grain direction which generally can be tailored to the stress patterns of a specific design. This is a super underappreciated fact! It's often repeated that forging is just stronger,
188.
by hwillis 2y ago
> like cast iron doesn’t have fantastic high-performance material qualities Cast iron is a material, not a process. It's an unfortunate legacy term for very high carbon steel (>2% by weight, or <11 iron atoms per carbon atom).
189.
by hwillis 2y ago
I wanted something slightly more realistic. It works just as well if the garage is an apartment building where everyone keeps their apartment unlocked.
190.
by hwillis 2y ago
Search warrants are usually public record after they are unsealed. If they aren't included in evidence its a Brady violation and if caught the case is essentially dead. If the defense sees that the search warrant was given or execute
191.
by hwillis 2y ago
Human fingertips and skin in general are extremely precise high resolution pressure and vibration sensors that robots almost completely lack. Tactile feedback takes up the second most human sensor bandwidth behind vision. Imagine doing
192.
by hwillis 2y ago
https://www.law.cornell.edu/wex/fruit_of_the_poisonous_tree > Fruit of the poisonous trees is a doctrine that extends the exclusionary rule to make evidence inadmissible in court if it was derived from evidence that
193.
by hwillis 2y ago
A suspect runs into a garage with several unlocked cars, including yours. The suspect had drugs when he went into the garage and didn't when he came out. The drugs may be in any of the cars or none of them. You would not get a search
194.
by hwillis 2y ago
The cost of thunderstorms has doubled from 5 years ago. https://www.swissre.com/press-release/Insured-losses-from-se...
195.
by hwillis 2y ago
Thunderstorms damage things like house cladding, roads, and water and power infrastructure. Things built 20+ years ago. Inflation is a reasonable control since it may make the repairs more expensive. The stock market is not a reasonable c
196.
by hwillis 2y ago
> Losses from severe thunderstorms have steadily increased by 7% annually in the last 30 years. 2023 marks an increase of almost 90% compared to the previous 5-year average (USD 32 billion), and more than doubles the previous 10-year ave
197.
by hwillis 2y ago
it's because "megagram" and "milligram" are a hassle. With the added bonus of mm/MM being used to abbreviate millions, I'm personally very grateful for tonnes.
198.
by hwillis 2y ago
> .50 cal sniper rifles and shoulder launched weapons like Carl Gustaf, the M72 LAW or the AT4 can [produce shock waves that induce cavitation in brain tissue] The US military, and militaries in general, do not use weapons like the M82&#
199.
by hwillis 2y ago
It was a health advisory in 2022, and it was revised from .004 ppt (note that you are off by an order of magnitude) to zero . Per the EPA: > Drinking water health advisories (HAs) provide information on contaminants that can cause huma
200.
by hwillis 2y ago
plastic packing peanuts vs paper stuffing, paper/plastic bags, blister packs vs cardboard boxes, paper-backed tape, paper/plastic plates, straws, etc
201.
by hwillis 2y ago
2 of the 3 lawsuits were filed jointly by two large water utility trade associations, and the lawsuit (which is a petition for review) is here along with their statement: https://www.awwa.org/Resources-Tools/Resource-To
202.
by hwillis 2y ago
Wrong. The EPA limit is 4 ng/L for PFOA and PFOS: https://www.epa.gov/system/files/documents/2024-04/drinking-... An off the shelf Agilent spectrometer with EPA approved methods can detect PFOA at
203.
by hwillis 2y ago
1. where's the case law that makes it apply to corporations? 2. how is 100x the crime excessive, but $150,000 per pirated song isn't? That's a lot more than 100x the cost of a song.
204.
by hwillis 2y ago
That means 400+ kilowatts- doable, but pretty disruptive for grid operators. Typically that will mean expensive (>.5 MWh) onsite batteries. Gas stations are inherently capital-intensive but making a $200k+ bet may still be a struggle.
205.
by hwillis 2y ago
I totally agree, but it does only apply to drivers who have chargers at home. If you're parking on the street or in an apartment garage without enough chargers, things are different. That's less range anxiety and more range PITA
206.
by hwillis 2y ago
Capillaries are around the same width as the central bodies (soma) of neurons
207.
by hwillis 2y ago
There are 10^18 voxels in that cubic mm, so a petabyte (10^15 bytes) is not too bad. Must be a lot of empty space in there. Put another way: this is pretty close to a football-field-sized cube, filled with sand. Each grain of sand is a vo
208.
by hwillis 2y ago
No, you're actually reading it wrong. Its a unit of power, not energy. You can follow the link on that line and see the EIA also using watts. It's talking about the ability to supply power to the grid, not how long it can supply
209.
by hwillis 2y ago
The LLM isn't being perfectly reset. It chooses words randomly; internally it should be slightly different every time. That's the whole point of temperature.
210.
by hwillis 2y ago
If either of those were true Musk would sell Tesla and/or step down so he could have cash and time to do something else. Something tells me there isn't a chance in hell of that happening.

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