jbay808

77 ms·

361.
by jbay808 5y ago
Shelter isn't housing, it's rent. Housing is up much more -- 21.7% YoY (as of January 2022, on top of 9% the previous year [1]) -- but that isn't directly captured in the CPI. Shelter CPI goes approximately as a massive low-p
362.
by jbay808 5y ago
> do you think that housing prices running away like this might instigate some policy shifts? Probably, yes. It was easy to see this coming, so I think policymakers should have shifted policy earlier, but it will be hard not to do so at
363.
by jbay808 5y ago
The reason shelter is the biggest story is not because shelter inflation is leading the pack (of course it's not, so energy is grabbing all the attention!), but because shelter has so much inertia behind it, and couples so much more
364.
by jbay808 5y ago
> Inventory is still bumping along record lows. Absolutely, but that's part of the mechanism through which price rises happen, more than a causal explanation of it. It further suggests that shelter has a lot of momentum. > Housin
365.
by jbay808 5y ago
The biggest story here is in shelter prices. https://www.bls.gov/charts/consumer-price-index/consumer-pri... March saw a continuation of a year-long trend in which YoY shelter inflation accelerated by almost exa
366.
by jbay808 5y ago
Ah yes -- the Erdogan school of economics.
367.
by jbay808 5y ago
DJI seems pretty big. Whose tech are they stealing?
368.
by jbay808 5y ago
That seems like a terrible joke. Even as a joke rather than a real policy, that's a great way to create a culture where people are afraid to ask questions and instead pretend to understand things they don't.
369.
Master Hands – Chevrolet Manufacturing (1936)(youtube.com)
2 points by jbay808 5y ago|0 comments
370.
by jbay808 5y ago
Compare with 1936 Chevrolet factory, itself a feat of industrial automation: https://youtu.be/8bT6txm4RpA
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by jbay808 5y ago
> Still, while the idea sounds crazy now, it must have seemed possible in the heady 1960s when supersonic airliners were the holy grail of air travel. It was an era that spawned Europe's Concorde and America's abortive SST Give
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by jbay808 5y ago
The trend is towards DC motors that are electromechanically AC motors, but supplied with AC current generated by an inverter from a DC power source. The inverter can control the motor more precisely than a fixed-frequency grid voltage can
373.
by jbay808 5y ago
In terms of motors, yes -- virtually all motors need to provide AC to the coils to run, so DC motors need to use an inverter. But increasingly these days, even AC motors are being run from variable-frequency drives, in order to squeeze out
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by jbay808 5y ago
> Maybe even more than is physically possible inside our brains, but the simulation fudges it. Are you basing your argument on the assumption that human brains violate the known laws of physics?
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by jbay808 5y ago
Perhaps this one? https://en.m.wikipedia.org/wiki/2006_Lebanon_War Or maybe these: https://en.m.wikipedia.org/wiki/2008_Lebanon_conflict https://en.m.wikipedia.org/wiki/Syrian
376.
by jbay808 5y ago
You don't need to transform every vertex of the 3D model though. If you're rendering an astronaut on mars, you just feed the graphics engine the relative position of the astronaut and the camera. The detailed rendering of the astr
377.
by jbay808 5y ago
The rendering can be done relative to the camera position though, can't it? So for the graphics you just subtract all world coordinates from the camera coordinate, and cast the result to float; for the game physics and AI, you work dir
378.
by jbay808 5y ago
Is there a reason that game developers don't use fixed-point math for Cartesian coordinates? A 64 bit integer and a 64 bit float both chop up your coordinate system into the same number of points, but with the integer, those points are
379.
by jbay808 5y ago
Unfortunately I don't have an institutional login, or else I would be able to comment better. :( But it sounds to me from the abstract like the result is not significantly different from the thermal noise voltage on a resistor? I don&#
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by jbay808 5y ago
That variation would account for some premature failures, not a few motors randomly lasting 100 years by exceptional luck and skill. 100 years is just the performance you get when the thing is assembled correctly.
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by jbay808 5y ago
Silver, you mean? That's an option, but now we're getting pretty exotic...
382.
by jbay808 5y ago
Really well made or really well designed? Even a century ago, there wouldn't be that much variation between one motor and the next on a given production line.
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by jbay808 5y ago
The article skips over the obvious downsides of this sort of motor design, which are: - It requires a high volume of rare earth magnets to get good performance. They should be comparing against similar motors with rare earth magnets and int
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by jbay808 5y ago
Shinsei corporation made a (macroscopic) electrostatic motor that operates on that principle. I guess they did it just out of curiosity because I don't think it has many advantages. It required high voltages and all the active surfaces
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by jbay808 5y ago
Maybe at big companies it's hard to convince the team that a desktop application is the way to go, but individual developers can do what they want and many are making desktop apps. I'm using a new, still-in-development electronics
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by jbay808 5y ago
Or Michael Faraday's masterpiece "the chemical history of a candle", which deep-dives not only into what every part of the fire is, but also how we know what it is. https://www.gutenberg.org/cache/epub&
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by jbay808 5y ago
Pushed bond yields down, by pushing bond prices up. If you believe in value investing, the same process has pushed stock yields down (where yield is measured in terms of earnings, ie the reciprocal of the P/E ratio). A step chan
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by jbay808 5y ago
> the current 8% inflation is mostly due to temporary factors. In particular the war in Ukraine 8% was from data as of February. By the way, shelter inflation is steadily climbing at 0.3% per month. That's going to be a fearsome tre
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by jbay808 5y ago
Yes, thermocouples can work as heat pumps, and Peltier elements can work as thermocouples.
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by jbay808 5y ago
Almost any high-efficiency energy transformation is reversible, in fact!

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