mkwt

@mkwt@lemmy.world

• ⁨Comment⁩ on ⁨Land where⁩ ⁨⁨8⁩ ⁨hours⁩ ago⁩:

  The capsules can do a water splashdown with parachutes alone.

  The capsules that land on land all seem to have some additional system to slow down in addition to the parachute. Boeing Starliner has airbags that deploy around and below the heat shield. Soyuz has a braking rocket system that fires immediately before impact.

• ⁨Comment⁩ on ⁨Wake up sheeple⁩ ⁨⁨3⁩ ⁨days⁩ ago⁩:

  It was a three-barreled gun that fired shotgun shells, rifle rounds, and rescue flares. 10 rounds of each type of ammunition were supplied. The stock could be detached and used as a machete.

  For a while, these guns were on every Soyuz capsule that docked with ISS, and they were under the operational control of the Soyuz commander. I’ve read that they may have been retired in 2007 because Russia finally ran out of the very unique ammo.

• ⁨Comment⁩ on ⁨Wake up sheeple⁩ ⁨⁨3⁩ ⁨days⁩ ago⁩:

  They later said it was less than 1 mile away from the target spot.

  A big benefit of the ocean is if the capsule loses all attitude control, it can still reenter and survive. But it will be a “ballistic reentry”, much more punishing with the g forces, and also about 1500 miles short of the target zone.

  The Pacific Ocean makes it easy to ensure that those backup contingency landing sites are also safe landing sites.

• ⁨Comment⁩ on ⁨Wake up sheeple⁩ ⁨⁨3⁩ ⁨days⁩ ago⁩:

  The Russian system has a braking rocket that fires at the very last second to soften up the landing. On one early Soyuz mission, this rocket didn’t fire, and the solo cosmonaut suffered substantial injuries from the landing.

  The Orion capsule hits the water at the final parachute speed of 20-30 mph without injuring the crew. But as you state, they also have to design the capsule for flotation and egress in potentially rough sea state.

  Boeing Starliner is designed for a land landing, but it uses deployable air bags instead of a braking rocket. It’s not clear that Starliner will ever fly again after the RCS thruster problems.

• ⁨Comment⁩ on ⁨Lmao⁩ ⁨⁨3⁩ ⁨days⁩ ago⁩:

  Whoops! That’s my mistake.

• ⁨Comment⁩ on ⁨Lmao⁩ ⁨⁨3⁩ ⁨days⁩ ago⁩:

  “Nightfall”, by Arthur C. Clarke is a short story based on this premise.

  Except in the story it’s a complex multiple-star solar system that makes it very rare for all suns to set at once.

• ⁨Comment⁩ on ⁨Control theory⁩ ⁨⁨5⁩ ⁨days⁩ ago⁩:

  I highly Python Control Systems Library, python-control on PyPi, as a replacement for the control systems toolbox.

• ⁨Comment⁩ on ⁨Wasted potential.⁩ ⁨⁨1⁩ ⁨week⁩ ago⁩:

  “Red dirt” specifically refers to a region straddling the Red River, including parts of Oklahoma and Texas. The soil in the region is actually red. But the musical area is much larger than the geological area.

• ⁨Comment⁩ on ⁨⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  The proof is not that ancient. Pi was proven to be irrational in 1761, and proven to be transcendental in 1882.

  For a long time the problem was known as “squaring the circle”: Given a circle in a plane, construct a square with the same area using a compass and straightedge. This was a famous unsolved problem in mathematics from antiquity all the way through the renaissance.

• ⁨Comment⁩ on ⁨How do movie theaters work? Which seats in theaters are the best? (never done this before) Also is the IMAX thing actually any different?⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  IMAX film is twice as wide as standard film. 70 mm instead of 35 mm. The IMAX film platters are physically ginormous. All that extra film gives you a bunch of extra resolution compared to regular film.

  The first catch is that “IMAX standard” may not be real IMAX. I don’t know exactly what that means. Perhaps it could even be digital projection that aims to be comparable to IMAX in some ways?

  Second catch is that a lot of films that are shown in IMAX theaters were not actually shot on IMAX originally. If a film was shot on 35mm, say, and then printed onto IMAX, you don’t get all of the resolution benefits, and you may also get letter boxes or pan-and-scan because the aspect ratio isn’t the same. IMAX cameras are massively more expensive and logistically difficult than regular film cameras.

• ⁨Comment⁩ on ⁨How are criminals apprehended by vigilantes able to go to prison?⁩ ⁨⁨3⁩ ⁨weeks⁩ ago⁩:

  Usually in these stories, Batman or whoever leaves behind enough evidence to support a successful prosecution, along with the tied-up bag guy.

  The vigilante broke the law to gain evidence, so all the evidence the vigilante obtained would be thrown out,

  That’s actually an interesting situation. The fourth and fifth amendments put restrictions on the government, not private vigilantes. So if the cops just happen to find evidence in plain view, there won’t be a direct constitutional reason to suppress it.

  Now if the local prosecutor has a pattern or practice of deliberately turning a blind eye to the unlicensed private investigators that routinely supply them with illegally obtained information, there’s probably a claim there. But it’s a lot more complicated to make that case than a straight-up 4th amendment case.

• ⁨Comment⁩ on ⁨ShitpostID: 4185519047⁩ ⁨⁨4⁩ ⁨weeks⁩ ago⁩:

  120 giga-grand-pianos-per-square-football-field.

• ⁨Comment⁩ on ⁨Why is the USA attacking Iran?⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  They don’t like the U.S. either, as they believe that they are an imperialist power that wants to take advantage of the Middle East. That is one reason that the United States deems Iran an enemy.

  In 1953, the CIA and MI6 effectively ended representative democracy in Iran when they backed a coup d’etat that deposed Iranian prime minister Mohammed Mosadegh. Mosadegh had tried to audit the books of the Anglo-Iranian Oil Company (which later became a division of BP).

  The 1953 coup resulted in the Shah of Iran, Reza Pahlavi, ruling autocratically and with heavy support from the United States. This status continued until 1979, when an Islamist revolution deposed the Shah and installed the Islamist government led by a clerical Supreme Leader that exists today.

  In 2013, the CIA released declassified documents that showed that the CIA planned and carried out the 1953 coup using all kinds of abhorrent tactics, including bribery of public officials, astroturfed paid protesters, and false flag operations.

  So hopefully that explains why the US is “the great Satan” to Iran, and why Iran keeps spouting “death to USA” rhetoric.

• ⁨Comment⁩ on ⁨Did I discover a fake conspiracy theory?⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  It would have been really helpful if Steve Patterson could have cited a case number or a caption or something.

• ⁨Comment⁩ on ⁨Yeeeeeeeeeeeeee-Haaaaw!⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  Damn revenuers!

• ⁨Comment⁩ on ⁨Yes this year is going to be really good and productive⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  And severance pay and notice of layoffs are de facto fairly common in corporate America.

• ⁨Comment⁩ on ⁨it's just science⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  Which theory explains why he has not accomplished the above.

• ⁨Comment⁩ on ⁨When did it become normalized to start passing credit card processing fees to the customer?⁩ ⁨⁨1⁩ ⁨month⁩ ago⁩:

  The credit card companies have always tried to prevent merchants from doing this by inserting language prohibiting either credit card surcharges or cash discounts into the contract agreements with the merchants. Obviously, credit card companies want to make it easy and convenient for consumers to use their credit cards.

  I can’t immediately find it, but at some point I think 10-15 years ago, some merchants sued the credit card companies over this, and they won a court ruling that said that the clauses forbidding cash discounts and surcharging are unenforceable. As a result, merchants are now free to do it, but there are various rules. And some state legislatures have started to get involved with regulating things.

• ⁨Comment⁩ on ⁨Can anyone explain why?⁩ ⁨⁨2⁩ ⁨months⁩ ago⁩:

  alcohol in pretty much any quality has negative effects

  The key is that this guidance came out somewhere between millennial and gen z coming of age.

  When I was a child the TV news would run “health” stories about how moderate amounts of red wine are good for you. It turned out those studies were funded by the alcohol industry.

• ⁨Comment⁩ on ⁨Deep Time⁩ ⁨⁨2⁩ ⁨months⁩ ago⁩:

  If that’s a Tomcat, where’s that lizard’s RIO?

• ⁨Comment⁩ on ⁨I got a DMCA notice for having a fork of GPL 3.0 code⁩ ⁨⁨2⁩ ⁨months⁩ ago⁩:

  OP needs to counter-notice this shit.

• ⁨Comment⁩ on ⁨Woke up with hate in my heart⁩ ⁨⁨2⁩ ⁨months⁩ ago⁩:

  Achtung! likely originates from the same era, propagating through allied machine shops during WWII. And I’ve seen that in the wild.

• ⁨Comment⁩ on ⁨He took it literally⁩ ⁨⁨3⁩ ⁨months⁩ ago⁩:

  If you confess a crime to anyone, that’s an admission against party interest. And it can usually come in under that hearsay exception. It’s pretty common for cops to testify to what the defendant said in custody, and also for jailhouse snitches to testify to what the defendant said in custody (i.e. this is not a special cop hearsay exception).

  And the kicker is that this doesn’t help you, the defendant. Anything you say will be used against you, but it can’t ever be used for you. Because as soon as you’re trying to introduce your own prior statements, it’s inadmissable hearsay and not an admission against interest any more.

  You’re right though that it’s going to be an argument on this every time.

• ⁨Comment⁩ on ⁨He took it literally⁩ ⁨⁨3⁩ ⁨months⁩ ago⁩:

  Funnily enough, the supreme court ruled that you cannot invoke your right to remain silent by remaining silent. You have to actually say something about “I want a lawyer.”

• ⁨Comment⁩ on ⁨⁩ ⁨⁨3⁩ ⁨months⁩ ago⁩:

  millia pasuum, literally “1,000 paces,” was a common unit of measure in the empire, and the basis of various modern miles. It was slightly shorter than the modern statute mile.

• ⁨Comment⁩ on ⁨Drive safe⁩ ⁨⁨3⁩ ⁨months⁩ ago⁩:

  Seems like it might be 60 km/h.

• ⁨Comment⁩ on ⁨Is audiophile bullshit cheating?⁩ ⁨⁨3⁩ ⁨months⁩ ago⁩:

  But, but, the other terminal on those batteries is floating?

• ⁨Comment⁩ on ⁨Accidental rapture⁩ ⁨⁨4⁩ ⁨months⁩ ago⁩:

  In many jurisdictions, deer season is like 1 or 2 weekends per year, and the limit is 1. It’s not a lot of time to actually find and shoot a deer. So this guy is probably setting this up several weeks in advance to get some level of assurance that some deer will show up to his spot at the appointed time.

• ⁨Comment⁩ on ⁨[deleted]⁩ ⁨⁨4⁩ ⁨months⁩ ago⁩:

  I’m not sure what attracts down votes to your comment. People should read up on the know nothing party. This shit has happened before.

  America has always been a contradiction. It is Ralph Waldo Emerson and Robert E. Lee. It is both ICE and this nativity.

• ⁨Comment⁩ on ⁨I fall for it every year. Every. Year.⁩ ⁨⁨4⁩ ⁨months⁩ ago⁩:

  It’s funny because earlobes are, like, all gristle.