Viewing profile — captainperl

Being from the Detroit area, I find many of the comments here naive as one can't compare Detroit to an average urban city. To understand what Detroit is like, watch a film like "Es…

One of the most interesting geology articles I've ever read.

> Odd wording to describe a replanted forest as "desolate waste". I know you're trolling, but planting trees doesn't replace an entire ecosystem. Check out a palm oil plantation so…

> in the US, it’s basically impossible to involuntarily lose citizenship Over the past 20 years, several laws have been passed that erode proof of citizenship: - id documents with …

The money is there - $250 million per year for social workers alone in SF and increasing ... The will to build a single unit of housing for homeless people isn't though.

> I'm now locked out unless I upload a driver's license or passport id to prove my identity. No, If you wait long enough (12-24 months of inactivity) they'll email you a magic "ope…

> Isnt the point of the certification to be the expert? I'm just a math guy that can read. Enrolled Agents (EA) are very good on average as tax accountants. Not perfect, but if tal…

> Because as I understand it, the US was largely aloof until Germany started pursuing atomic weapons ... No. The USA public was isolationist until the bombing of Pearl Harbor. Germ…

BigCGI looks interesting. I signed up for your newsletter.

I'm ambivalent about WW1 since the US didn't do much fighting (too late into the war), and it was mostly trench warfare that wiped out European royalty, not necessarily a bad thing…

Yeah, I've been following the laundromat saga. If he can't develop a property like that one, then nobody can in SF.

Similarly, you can see a remarkable model airplane collection by Edward Chavez at SFO now. It was sponsored over two decades by the Nut Tree restaurant owner: https://www.flysfo.co…

Same with the Chilean Atacama mine collapse rescue. The Chilean president gets credit for unwavering support for a rescue, but the American drilling team ultimately was the success…

What's interesting is that this is happening in aerodynamics today as students and researchers rediscover on youtube the amazing Shell Oil-sponsored "High Speed Flight" videos from…

TLDR; 11,000 words of gossip about GE CEO promotions with no insight into the actual business problems. Makes the authors look like incompetent wannabe "journalists."

Atmospheric disturbance was a major problem for the SDI (Star Wars) project. They came up with solutions, and no doubt there are more and cheaper solutions today, given advances in…

I believe he was 19 years old.

The reddit post was interesting but not helpful (actionable) for other patients. In the USA, if you experience the symptoms of a heart attack, you just take a taxi to the emergency…

> Anyone know ... Chinese companies are controlled by the Chinese government. Any partnership in China with a Chinese company is controlled by the Chinese government. Got it?

> this is many orders of magnitude less likely than you getting killed by a meteor strike. No, a thousandth of a percent = 1/100,000, which is more likely than the meteor or murder…

> There is also the environmental impact to consider. Air travel has a much larger emission profile compared to train travel I'm not sure that's true. Heavy locomotives require a l…

For the people reading these postings, I noticed there's some misunderstandings about California HSR ... 1) It's not for transportation. It's a jobs and pension program for appoint…

> Right to work laws say you have to a right to work or not work. No, they mean employees have a choice to join a union or not (ie. pay union dues or not.) In other words, they're …

Boundary-layer aerodynamics. The head is literally flying on a cushion of air.

> DC motors are multiple times smaller and lighter than the equivalent powered turbine engine when you consider the entire system. Airplanes this size can use cruise missile engine…