scythe

49 ms·

721.
by scythe 3y ago
The sweet potato is an extremely unusual case in that it was transported across the Pacific by Polynesians before the Colombian exchange! In fact, this is some of the most reliable evidence that the preindustrial Polynesians reached Sou
722.
by scythe 3y ago
The "clever" version I've seen in some papers is to use reverse electrodialysis to recover energy as you dilute the waste brine with seawater. AFAIK, this has not been incorporated into any existing installations.
723.
by scythe 3y ago
Not quite that simple. Even isotonic water would probably be too corrosive for existing pipework.
724.
by scythe 3y ago
A lot of politicians have challenged the two-party system over the years. Some examples: Ross Perot, Ralph Nader, Jesse Ventura, Gary Johnson, Andrew Yang, Tulsi Gabbard, and now Cornel West. One thing you might notice about this list is th
725.
by scythe 3y ago
I thought the article was reasonably upfront about the limitations of the use of total biomass as a measure of ecological value. But the subtitle, unfortunately, omits those details. There is a bit of "until next time" in all of t
726.
by scythe 3y ago
https://archive.ph/7RpfK
727.
Deep-sea mining may soon ease the world's battery-metal shortage(economist.com)
58 points by scythe 3y ago|106 comments
728.
by scythe 3y ago
It's a very long page, but only a third of it is actually "the rules", and a lot of that is justifying and explaining the rules.
729.
by scythe 3y ago
Domino theory was false in the Vietnam War. "Contagion" didn't spread further than Laos and Cambodia, and the Vietnamese themselves deposed the Khmer Rouge in favor of moderates due to the latter's extremism and massac
730.
by scythe 3y ago
>Radioactivity in the contaminated soil has been measured at 8,900 rad per hour. Ah, Gell-Mann amnesia, how I forget thee. The rad is a unit of radiation exposure, or "dose"; it measures how much radiation impacted a target (su
731.
by scythe 3y ago
Reddit's Eternal September began no later than 2018 when Tumblr banned porn. What's happening now is that it has hit an apparent growth ceiling (most of the most upvoted posts are from more than a year ago) and the owners have rea
732.
by scythe 3y ago
Kagan's dissent regarding the standing of Missouri was fantastic. I am not a lawyer, but she seemed to clearly cut through every argument for hearing the case offered by the majority. MOHELA is not financially tied to Missouri; states
733.
by scythe 3y ago
The function 1^x is constant everywhere. You can write (-1)^x to get the kind of effect you are looking for, but doing this with 1^x is madness. >The only disadvantage of this approach is that symbolic differentiation and integration are
734.
by scythe 3y ago
If you're really slick about it, you even "fix" the Gaussian integral this way. Let é = e^sqrt(2pi), déx = dx/sqrt(2pi), and we have int_{R}(é^(int_0^x(t dét)) déx) = int_{R}(e^(sqrt(2pi) x^2/(2 sqrt(2pi))) dx/
735.
by scythe 3y ago
You can always define angles in turns. But the problem is that it conflicts with the definition cos(x) = Re{e^(ix)}. Trig is not so easily separated from the rest of mathematics.
736.
by scythe 3y ago
I was with him until this point: >This notation could be abused even further by denoting đx = 1/(2π) dx , which can then simplify some integral formulae, But now you're screwing up all of your previous integral formulae!
737.
by scythe 3y ago
https://archive.ph/IbRah While the article does not say "phase III", the Gates Foundation confirms that it is indeed this last stage of trials: https://www.gatesfoundation.org/ideas/media-cent
738.
New tuberculosis vaccine heads for Phase III trial(economist.com)
3 points by scythe 3y ago|1 comments
739.
by scythe 3y ago
Electricity + meat + (long-distance) travel comes to less than half of emissions in developed countries. Expand that to all transportation and you're just over half. Furthermore, electricity is probably the easiest sector to decarboniz
740.
by scythe 3y ago
>Personally I’m in favor of pretty broad federal land protections. I'm generally in favor of broader protections than the Court permitted with this decision. However, determining what policies are appropriate is simply not in the re
741.
by scythe 3y ago
Human beings have poured billions of tons of concrete into infrastructure that is designed for the climate to be the way it was in the twentieth century (or earlier). Sure, there may be more rainfall in some places, but we would have to bui
742.
by scythe 3y ago
I think the parent commenter meant "investment" in the narrow sense of "financial security" and not in the broader sense of any activity that generates a figurative return for the effort applied — in the case of roads, t
743.
by scythe 3y ago
An interesting article, but an extremely editorialized title: the original is "Europe's Economic Outlook Depends on how Corporate Profits Absorb Wage Gains". It raises the question of whether submitters should have their karm
744.
by scythe 3y ago
>Somehow obviously arriving at 110%? Because decreases in effective tax rates account for –10% of the observed change. Including negative contributions is a little confusing, but it gets a lot more confusing when you omit that part witho
745.
by scythe 3y ago
>The vendor had apparently assured both JP Morgan and the Financial Industry Regulatory Authority (FINRA) on multiple occasions that its media storage complied with the relevant Exchange Act rules regarding the 36 month retention period,
746.
by scythe 3y ago
>It has a lot do when you discuss California’s land use policy, which does not apply to nearly half of California, including an even larger share of the land to which controlled burns might sensibly apply, which are largely national park
747.
by scythe 3y ago
ESS should not be mentioned except as an example of how prone the green news cycle is to fraud. As I detailed last year, their claims are highly dubious: https://news.ycombinator.com/item?id=31430227 (previously I misspelle
748.
by scythe 3y ago
California is more than twice the size of Florida. Ignoring a third which is "desert" — much of this is actually steppe — doesn't tip the scales. I'm not sure what the arbitrary human-imposed classification of "cont
749.
by scythe 3y ago
I can't say for "intuitive", but the introduction to the paper involves breaking p-groups — groups having p^k members where p is a prime — into the cases k > lg(p)^5 and k <= lg(p)^5, which likely explains why the numbe
750.
by scythe 3y ago
Similar proposals have been made previously, particularly for boron, which has ten times the energy density of iron, and yet similar low combustibility: http://www.eagle.ca/~gcowan/boron_blast.html

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