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_rpd

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Penrose Process

en.wikipedia.org
2 points·by _rpd·4 năm trước·0 comments

The Unreasonable Effectiveness of Mathematics in the Natural Sciences

en.wikipedia.org
2 points·by _rpd·5 năm trước·0 comments

comments

_rpd
·5 năm trước·discuss
A more in depth look at the factors causing high fertilizer prices:

https://www.fb.org/market-intel/too-many-to-count-factors-dr...

tl;dr: high natural gas prices, weather caused production delays, COVID caused production/shipping delays, power shortages in China (a major exporter) resulting in lower production
_rpd
·5 năm trước·discuss
This is an article about a still life painter.
_rpd
·5 năm trước·discuss
"Flattening the curve" is about not overwhleming hospital resources, to avoid non-COVID avoidable deaths spiking.
_rpd
·5 năm trước·discuss
You're lucky it isn't just images of their tweets tied together with an 'emerging trend' narrative.
_rpd
·5 năm trước·discuss
With US troops.
_rpd
·5 năm trước·discuss
Counterpoint: high quality journalism must be well funded, and funding based on advertising and 'clickbait' undermines quality. So paywalls it is.
_rpd
·5 năm trước·discuss
If you have enough electricity to do that, you can just put into EV batteries directly and skip the hydrogen middle man.
_rpd
·5 năm trước·discuss
> To me it is sufficient to beat the top 20% of drivers.

It's interesting that you set the threshold there (I presume you meant 'beat the bottom 80% of drivers'). Rationally, we should be happy if their driving performance is above average. I fear that the public (and the courts and the insurers, etc) will require airline levels of per-mile safety and still be wary.
_rpd
·5 năm trước·discuss
Gt of CO2 = (12+16+16)/12 * Gt of Carbon
_rpd
·5 năm trước·discuss
The missing component is curiosity.
_rpd
·5 năm trước·discuss
I don't think your intuition is the problem:

> Forty percent of U.S. adults ascribe to a strictly creationist view of human origins, believing that God created them in their present form within roughly the past 10,000 years.

https://news.gallup.com/poll/261680/americans-believe-creati...

That's over 100 million people.
_rpd
·5 năm trước·discuss
The Google doc doesn't say. The article says:

> details of who was in a geographic area, such as a radius of a few hundred feet at a certain point in time

It probably depends on whether the suspect was on foot or driving.
_rpd
·5 năm trước·discuss
Actual paper ...

> Among participants who tested positive for COVID-19, 68.7% experienced at least one symptom after 30 days, marking the distinction for long COVID. This prevalence increased to 77% after 60 days of follow-up. Researchers also found that individuals who experienced long COVID were more likely to be less educated, have seasonal allergies and pre-existing health conditions, and self-report greater symptom severity than people without long COVID.

https://journals.plos.org/plosone/article?id=10.1371/journal...
_rpd
·5 năm trước·discuss
It makes it easy to comply with the Fair Credit Billing Act:

https://en.wikipedia.org/wiki/Fair_Credit_Billing_Act
_rpd
·5 năm trước·discuss
If you think about what payment processors actually do, dealing with fraud is one of the main costs. There's a lot of fraud associated with porn related transactions, so it can make financial sense to just drop the entire transaction category.
_rpd
·5 năm trước·discuss
Both have been proposed:

http://pure.iiasa.ac.at/id/eprint/16202/1/Hunt2019_Article_C...
_rpd
·5 năm trước·discuss
This is a different paper.
_rpd
·5 năm trước·discuss
Here you go:

An umbrella review of the evidence associating diet and cancer risk at 11 anatomical sites

https://www.nature.com/articles/s41467-021-24861-8
_rpd
·5 năm trước·discuss
> How TF is this news, on Wired

Wired was always a gossip magazine, but now it is just a gossip magazine. It's sad.
_rpd
·5 năm trước·discuss
Workhorse has full on plans for drone delivery that use the van as a base:

https://workhorse.com/horsefly.html