181–190 of 231 posts
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Who measures light wavelengths in angstroms rather than nm?
I was curious too so I checked Wikipedia [1]. Apparently, angstrom was invented exactly for measuring light wavelength. Its (arguably more common today?) usage for atoms and other microscopic structures actually came after that. [1] https://en.wikipedia.org/wiki/Angstrom
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Not sure if you read the rest of my comment, but I'm saying it wasn't a negative thing that he tried to get the project canceled and it seems like he was right about how it was going to go. So maybe not ignore it, but praise that he tried to get it canceled?
> Not sure if you read the rest of my comment, but I'm saying it wasn't a negative thing that he tried to get the project canceled and it seems like he was right about how it was going to go. That's specious reasoning at best. It's absurd how you try to depict a Robber Baron move as a simplistic fiscally responsible stance. It's even sillier once you realize the only reason Elon Musk did his best to sabotage the prog…
The only specious reasoning I'm seeing here is the weird assumption that one high speed rail line in California would meaningfully suppress Tesla car sales. It's competing with air travel, not car ownership.
It's ridiculous enough to suggest that it would suppress the sale of cars generally. It's especially ridiculous to suggest that it would suppress sales of Tesla vehicles. It's a 760 mile round trip between SF and LA — not an issue for an EV if you're doing it occasionally. But someone buying a new car for the specific purpose of driving this route simply wouldn't consider an EV.
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This is talking about radio wave frequency, not trading frequency.
The funny thing is that in most ham radio usage, the "high frequency bands" are actually about as low a frequency as most people will ever use. I don't think I've come across anything about low and medium frequencies except in reference materials. People generally use "high frequency", "very high frequency", or "ultra high frequency".
I’m guessing that when radio first came out frequencies were lower, though I don’t have any facts there.
“Shortwave radio” is another one that’s confusing term these days for the same reason.
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It just so happens that those who advocate and benefit directly from it are the ones who already have the power to make markets. The product of a company is based on its labor utilization, which doesn't change materially in the (very) short timespans of HFT. Liquidity aside, five minutes isn't going to make much of a difference when most people generally wait weeks or months to make major asset purchases like a car o…
Labor utilization is only one piece of a very big puzzle. Other pieces that change more quickly include commodity and supply chain costs, competitor activities, technological advances, and many other factors, all of which can change quite quickly in our globalized world.
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Well, the article itself does a pretty good job of describing why it is not an exactly good idea. What it does not say (and what probably nobody suggesting that ever though about) is that the sky-wave propagation mode is either about reflection off the ionosphere or refraction effects of the ionosphere, both of which means that the propagation path is significantly longer and in the refraction case over “slower” medi…
Another thing that got posted here a couple days ago was the Burrito Tunnel: https://idlewords.com/2007/04/the_alameda_weehawken_burrito_... That's where the high-frequency traders should put their fibers ;)
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Zero?
Tesla's sales of approximately 4.5 million vehicles have each offset about 20 tons of CO2 over their lifetimes compared to a traditional gas vehicle [1]. This equates to preventing a total of 90 million tons of CO2 from entering our atmosphere. As we continue to transition to renewable energy, the environmental benefits of each Tesla vehicle are set to increase further. In contrast, a SpaceX launch generates around 3…
We humans are stupid. We always underestimate the consequences of small stuff that simply adds up over time. This is a pattern. We polluted the planet with forever chemicals, lead, and tons of other pollutants that our descendants will have to deal with and suffer from!
All this needs to be regulated, a risk-benefits analysis made, and there needs to be a huge excise tax for all such activities!
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LEO is big, but only a few orbits are desirable and all circular orbits at the same altitude cross twice, by definition. It’s like slot cars, but much lower probability of an “intersection event.” That’s fun! Of course, we do already have something analogous to FAA altitude separations. But that requires everyone everywhere to cooperate in real-time, and mandates some degree of maneuverability. I guess orbital decay…
You also have people who would largely prioritize for astronomical observations over rural internet—perhaps because they think people should be living in cities anyway. I’m only being mildly sarcastic.
When is the tentative timeline to be building and launching rockets up from the outer atmosphere? While we occasionally launch payloads of raw materials from earth instead of the regularly launches that we have now?