tamcap

Based on my personal observations, most of the local zoning restrictions in the US come from conservative local residents, and not a cabal of developers. The latter want to build.

And I am using the word conservative in the non-political sense here - opposed to change. The individual motivations are many, but ultimately, a lot of people tend to avoid change around where they live.

The thesis was known from the very beginning. The rest is just window dressing to justify the outcome.

I still scratch my head about some no-brainer vaccines such as HPV. All upsides, prevents the literal cancer. No downsides.

> It has a cruise speed of about 200 km/h (\(124\) mph), a payload of \(350\) kg (\(770\) lbs), and a range of approximately 300 km (\(186\) miles)

While it’s a real plane, I think we can both agree this is more of a prototype than what the general public would consider to be a passenger plane.

Yes, energy recovery is possible. It’s not happening currently in commercial aviation.

You can use a turbine to generate electricity, so yes, you are converting potential energy into electrical potential. However, no real mass produced passenger plane today can use that electricity for flight (thrust).

RAT is only used when sh*t hits the fan. Even then, it can help you power some hydraulics / electrical, not “store” energy for further flight.

The OP asked - in a low fuel situation, can the energy spent on a climb get effectively recovered - and the answer is not really. We convert as much as we can into unpowered (low-powered) descent. But once you are at a spot where you make a final decision to land or not, you are by design low and slow - and all that energy you had 15m ago is gone.

If you need to keep flying, those engines need to spool back up. And that takes fuel.

Not really. While you have a large potential energy buildup at a higher altitude, you cannot "bank it" / "save it" on descent. There is no way to store it in batteries or convert it back into fuel.

One of the challenges of aeronautics is the efficient disposition of the potential energy without converting it all into kinetic energy (ie speed) so that the landing happens at an optimally low speed - thus giving you a chance to brake and slow down at the end.

Many airports (in the US, at least) make much more money from parking fees than everything else. On top of that, at least some operate their retail in a royalties model too (ie 20% of all sales goes to the airport, before any costs).

Thus, there is very little incentive to keep you in the airport less, and multiple incentives to keep you there longer.

> Reviewers can be professors, PhD students, etc. and are paid by the journal for their time.

Most journals do not pay for reviewers time. There are some experiments that allow for this, but I would say 99% of the reviews out there are done... "out of the goodness of the reviewer's heart".

There are indirect benefits to being a reviewer, such as early access to unpublished work, "goodwill" with the editor, etc.

It's possible they checked before (and the article suggests they had an inclination where the gene should be) but the resultant backcrosses involved a spontaneous recombination of the relevant fragment. It's possible someone checked the wrong vial in lab, or mislabeled results. It's possible something funny "just happened".

Wet lab is hard, and everyone is chasing the eureka moment.

* overhead - people cost a lot of money: this includes ongoing maintenance of the tech stack, including rewrites of obsolete parts, but also ops cost - preprinting can include more than one human touchpoint

* converting PDFs to HTML is an annoying problem

* searchability of the repo is likely an annoying problem

* any new features that stakeholders want added (commenting, annotations, etc) * ongoing hosting / CDN cost

Magically using billions of federal money to hold assets to maturity is a bailout. If hypothetical JPMorgan is willing to pay for the (ie) bonds $20B, but they "support" $25B of deposits... that $5B is a bailout. Even if in 10 years those bonds would be worth $25B.

Happy to report that it actually has happened in the end.

In their defense, if the backup requires accessing archive tape drive records, long processing queues in non-scalable systems, etc - this could easily take 24 "physical" hours of things getting lined up correctly.

It's one thing to show you the last 24hr of tweets. Another to get a complete twitter history for given uid.

I've been waiting for an archive of my data for 3 days now. And my activity on Twitter is probably bottom 25%.