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sio8ohPi

592 karma · joined March 15, 2020

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sio8ohPi··on Goodbye Windows Mixed Reality, we hardly knew Microsoft's VR software
I'm using a Pico 4 with Il-2, no assists. Dials are 100% a non-issue (headset resolution has been good enough to read them easily for years). Spotting and recognition are fine.
sio8ohPi··on Anti Tank Vespa
There are various photos online that claim to show it in the field in Algeria during their war of independence. Given that it was used by French paras who were deployed there during that time, I have no particular reason to doubt those captions.
sio8ohPi··on Anti Tank Vespa
The scooter is just a light, air-droppable vehicle for schlepping the gun around the battlefield to a location where it can be set up and ideally dug in. It's no different than moving a light artillery-piece with a jeep, a truck, a tractor, or a mule (except that a mule is going to object rather vehemently to being booted out of a plane).
sio8ohPi··on Man captures 'weird anomaly' of Storm Babet lifting forest floor in Scotland
As a counterpoint: https://xkcd.com/795/
sio8ohPi··on False canopies on fighters work, one almost killed me
I've usually seen both presented at the merge, e.g. https://en.wikipedia.org/wiki/Basic_fighter_maneuvers#/media...
sio8ohPi··on False canopies on fighters work, one almost killed me
> The main tactic was to draw the bandit into a ‘single-circle’ fight, meaning that one aircraft was chasing the other around the circle.

I'm curious about the use of 'single-circle' here. The way it's described makes it sounds like a nose-to-tail engagement ("one aircraft chasing the other around the circle"), which is usually called "two-circle" online (although I've always found that terminology confusing). Does single-circle have different meaning to Canadian pilots, or am I misunderstanding what's described?

sio8ohPi··on Where in the USA is this?
Obviously Wordle is uninteresting if you're only allowed one guess.

This game reminds me very much of chronophoto (https://www.chronophoto.app/game.html), which prompts with photos from different years, and so I was expecting it to work more like that.

sio8ohPi··on WW2 Mosquito Found in a Barn
Alongside what looks like a P-51 and a pair of DH Goblin(?) jet engines!
sio8ohPi··on I've procrastinated working on my thesis for more than a year
> There's lots of people in similar situations, and I'm sure a few of them finally broke out of it.

I went through a very similar death spiral as a grad student. Frustration leads to dread leads to slower progress leads to more dread leads to no progress and depression.

I wish I had some magic trick to reset my mind in times like that, but I don't. I wound up dropping out and went to industry instead... and while the failure stung at the time, it was the best decision I ever made. Academia is a job. If your job is making you miserable, it's probably time to move on to another job -- especially if you have marketable skills. For me at least, it was so much easier to reset facing new problems, problems that I didn't go to work dreading.

My big takeaway was that this is a failure state for me, and that I need to be aware of myself and head it off before I'm trapped. I need to therapy, coaching, or other help before the death spiral sets in. But breaking out of it and making progress on the hell-project? I dunno, sorry.

I'll also say that, if you're like me, you may have struggled with suicidal thoughts. The thought that kept me sane, prior to leaving, was reminding myself that it would be ridiculous to kill myself over work. Work isn't the purpose of living, being at the top of your field isn't the purpose of living, even being an academic isn't the purpose of living. There's billions of people on earth living fulfilling lives with boring, mundane jobs, finding satisfaction in friends and family and hobbies instead... so I would remind myself that, worst come to worst, I'd go find a boring, mundane job to pay the bills and find my satisfaction elsewhere.

sio8ohPi··on Ask HN: How do you choose your usernames?
pwgen
sio8ohPi··on Why Not Mars
Why drop into the Lunar gravity well at all then? LEO <-> Demos is less delta-V than LEO <-> Luna, and doesn't require low-ISP chemical rockets except for the initial boost.
sio8ohPi··on Why Not Mars
I believe you're missing a factor of 1/(4 pi ** 2), which gives a 446m radius for 0.5g @ 1RPM.
sio8ohPi··on Why Not Mars
Human civilization is only 5000 years old; Homo Sapiens is 300,000 years old. We have 5,000,000,000 years to plan for this eventuality.
sio8ohPi··on Why Not Mars
Earth remains more habitable than Mars even following staggeringly large asteroid impacts. As evidence, note that 25% of species on earth survived Chicxulub; those species would not have survived transportation to Mars.

And humans are well situated to be one of the survivors of a future large impact, by virtue of our tendency to burrow in the ground and to cache food. Indeed, one silver lining of the cold war is that major powers spent tremendous sums of money building fortifications with independent power and life support, as well as substantial food stockpiles, as well as numerous nuclear submarines which would weather the impact.

Another Chicxulub might kill 8 billion people, and would be an immense humanitarian tragedy -- putting people on Mars won't save us from that. But we have the technology for survivors to ride it out today.

sio8ohPi··on Can a Tarot card reading be defamatory?
Really interesting analysis. I was about to post it too, but tptacek beat me to it.

Previous discussion of this case:

https://news.ycombinator.com/item?id=34121873

sio8ohPi··on Twitter Office Supply Auction
(Effectively) reducing comp while also telling employees to be hardcore and work longer hours seems counterproductive.
sio8ohPi··on Twitter Office Supply Auction
My experience working in such places has been that most people bring better food. Soup, pasta, rice and beans, etc. I'm sure some people bring sandwiches and eat at their desk, but most people prefer hot food.

Food prep at home is cheap, but has a labor cost in time. Are employees really going to do their own food prep in the middle of 80 hour weeks?

When I prepped my own meals I was much more inclined to go home at 5pm sharp.

sio8ohPi··on Twitter Office Supply Auction
That's wild. It's untaxed comp that minimizes the time employees need to spend thinking about food during the day. He's mandating employees come back to the office for long hours, but now they need to (at least) order and receive their own lunches and dinners? If he's trying to retain some sort of high-intensity hardcore ninja startup bullshit, I would think free food would be the last thing cut. Or is he planning for them to subsist on nothing but soylent?

I've not been impressed by Musk, but this feels like the most boneheaded thing I've heard about his management yet.

sio8ohPi··on Dallas midair tragedy: New videos show startling change in flight path of p-63
Look at the 12th photo in the gallery, which shows the cockpit from the right-hand door. No armored windscreen.

There's no particular reason for wikipedia to mention it because it was a very common feature in this era. It would be like mentioning that it had self-sealing fuel tanks. It was also a feature that could be present or not between different models, and could even be retrofitted to a plane once it was in service.

Regarding the wreck-finder below: he likely does know exactly what it was because he likely started by looking up the crash report (and based on his claimed date, it's probably s/n, 44-2031)

This is exactly what a typical armored windscreen looked like in this era (e.g. https://ww2aircraft.net/forum/threads/armored-windscreen-for...)

sio8ohPi··on Dallas midair tragedy: New videos show startling change in flight path of p-63
Bulletproof windshields were very common during this period, although 43-11719 doesn't appear to have been fitted with one, likely because the F variant never advanced beyond the prototype stage.

https://warbirdsnews.com/warbird-restorations/caf-bell-p-63f...

sio8ohPi··on Dallas midair tragedy: New videos show startling change in flight path of p-63
The P-63 has the engine behind the pilot.
sio8ohPi··on Google to lay off 10k “poor performers”
Don't blame Google yet. This is Forbes fabricating a story for clicks, and the Independent parroting it uncritically. It's possible (and IMO likely) that Google will undergo layoffs (but you don't need to be Nostradamus to predict "company will undergo layoffs" during a recession), but both Forbes and the Independent appear to be misrepresenting their speculation as special knowledge.
sio8ohPi··on When going somewhere does a thing: on links and buttons
Sometimes Command+Click will open in a new tab when Middle Click doesn't work, and sometimes Middle Click will open in a new tab when Command+Click won't work.

If you're using Gmail, you get both types of behavior on the same page!

sio8ohPi··on Missing the Point of VR
I think parent commenter is talking about something like TrackIR, that uses a scaling factor to turn small head movements into large in-sim movements. It has been around since 2001 and has some advantages over VR for seated applications, particularly in terms of cost and comfort.
sio8ohPi··on What to Do If a Nuclear Disaster Is Imminent
The relevant Yes Minister:

https://www.youtube.com/watch?v=o861Ka9TtT4

"Will you press the button if they invade West Berlin?"

sio8ohPi··on The Strid: The ‘deadliest stretch of water’
Sometimes people tuck the grab-loop inside their spray skirt by mistake, which is why it's worth practicing one of the back-up techniques. It's also possible for an improperly burped dry-suit to trap someone in a boat (I know of at least one fatality in this way). I wouldn't expect an instructor to make these mistakes, but it's possible.
sio8ohPi··on The Strid: The ‘deadliest stretch of water’
In a river, they're called strainers. If someone is caught against one, water pressure often makes it impossible to extricate themselves without assistance, and if their head is underwater when they become trapped, rescue may not come quickly enough.

They're also less predictable than a lot of other river hazards. It's possible to come around the bend and be faced with a big strainer that wasn't there the last time you ran the river.

Here's a good video showing a rescue from one: https://www.reddit.com/r/whitewater/comments/cn6k8k/nasty_st...

sio8ohPi··on The Strid: The ‘deadliest stretch of water’
10 seconds isn't long at all, and it doesn't look like he was stuck (probably just trying to roll before committing to the wet exit). He walks away under his own power in the uncut version. I've seen footage of far, far closer calls.
sio8ohPi··on The Strid: The ‘deadliest stretch of water’
I don't believe much of what is said on the internet about the Strid. It's not a magical river. The Strid is dangerous, but it acquired that reputation by killing unprepared people who fall in. I've not seen much to indicate it's especially deadly to helmet and PFD equipped paddlers.

It's possible that the man depicted could have been dragged under an undercut if he'd swum the full rapids, but the video doesn't show evidence of that. Rather, he's pulled out of an eddy without much drama.

sio8ohPi··on The Strid: The ‘deadliest stretch of water’
I'm no whitewater expert, but this doesn't look like a near drowning to me. He probably attempts to roll but is obstructed by the rock and current, then exits just as assistance arrives. The hydraulic is potentially dangerous, but most of the circulation he's stuck in looks to be horizontal, and I don't see reason to think he couldn't have swum out if need be.

Trees, on the other hand, are scary.

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