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redis_mlc

1,807 karma · joined July 4, 2019

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redis_mlc··on Chinese athlete accuses former top Communist Party official of sexual assault
What's fascinating in China is the extradjudicial repossession of residential land.

Normally one gets a 99-year land lease to build a house, but the CCP has been repossessing the land after 30-40 years as it increases in value.

The CCP sends a goon squad with no uniform or id and a backhoe to tear down the house. Sometimes they wait for the "owner" to go to work, sometimes they just pull the house down with the occupants inside.

But here's the wrinkle. Since it's extrajudicial, the owner can kill the goons and no arrest or prosecution follows.

This actually happened in 2020. An owner threw a brick at the backhoe operator, IIRC, killing him, without being arrested. Although the court system is fixed in China, the CCP doesn't want the publicity, since it would reveal a war on citizens' property.

So if you can keep killing the goons, you keep your house until the next round.

redis_mlc··on Show HN: I built a CNC-machine from scratch, using 40x 3D-printed parts
Just to express the parent more bluntly, this CNC project is junk. I've seen stronger window frames than this.

I wouldn't even expect to cut several pieces of wood with this toy CNC machine.

It's like something you'd cobble together in a WW2 prison camp behind enemy lines.

redis_mlc··on How Temporal Workload Shifting Can Reduce Carbon Emissions in the Cloud
What you can do is run powertop periodically to see what's consuming the most power, or running frequently thus waking up your cpu from sleep modes.
redis_mlc··on New York City to Close Digital Divide for 1.6M Residents in Racial Equity
No mention of "nuclear", "family", or "marriage" in the article.

It's not a redlining issue in 2021.

Most adults have Internet access via smartphones, regardless of income or background.

redis_mlc··on A read query can write to disk: a Postgres story
Yup, SQL Server performance and licensing (!) consultants came out of retirement after MS doubled the licensing costs in 2012.

Managers don't like paying for optimization consultants, but it's the easiest way to both improve current performance and scale a master.

Note that Oracle positions MySQL as a replacement for SQL Server, as "moderate-performance databases." :)

Source: DBA.

https://metrixdata360.com/pricing-series/1500-price-increase...

redis_mlc··on Substantially more monarch butterflies have arrived in California to overwinter
Monarchs have migrated for thousands of years between remote locations, long before humans had a large impact on the environment.
redis_mlc··on Navy failures destroyed the Bonhomme Richard
1) No one died, mostly because civilian fire departments refused to board it in case they got lost.

There's some interesting parallels with the HMS Stark, which burned after being hit by an Exocet missile in the Falklands War. Their electronic communications and radar systems weren't working properly, they couldn't fight the fire, and the captain was recently assigned from subs. So it was more of an overal systemic failure like the BR than specific to a missile attack - the Exocet was an ignition source, but the failures afterward were leadership-related.

You can watch YT videos on the Forrestall carrier fire, started by electrical faults in Zuni missiles on John McCain's airplane. The Navy supposedly raised fire-fighting skills as a priority after that, but I guess not.

https://en.wikipedia.org/wiki/1967_USS_Forrestal_fire

During WW2, the Franklin carrier burned and when around 100 sailors got blocked off by smoke and flames, they jumped overboard to save their lives. Sadly the captain blacklisted them, and they were interned as deserters in Hawaii.

https://en.wikipedia.org/wiki/USS_Franklin_(CV-13)

2) No lives, but multiple billions of dollars, lost.

3) There's a scenario that China could occupy Australia with 10,000 soldiers using their existing troop carriers. The US actually needed the ship that burned.

NTD Media - How China Might Win a War with the US (Dr. Robert D. Eldridge) @4:41

https://www.youtube.com/watch?v=6oxE5mCOBio

4) My understanding is the fire involved a love triangle. If so, wokeism set back the US military, as expected. I've also heard recently that in time of war, many female personnel are expected to "accidently" get pregnant before deployment, affecting readiness. I bring this up because our current military leadership seemingly can't.

Source: I study WW2, and to a lesser extent, other wars.

redis_mlc··on FAA approves hundreds more engines to use unleaded avgas
There's likely trace elements in fuel. In the case of that area, the Capitol Expressway is a very busy highway system.

If RHV air quality is monitored, then so should some locations around the highway. In fact, there's enough cars surrounding the airport that it would influence air quality measurements inside the airport perimeter.

I mentioned the quake issue because I have seen documentation that RHV is part of the emergency response plan for transporting relief cargo.

redis_mlc··on FAA approves hundreds more engines to use unleaded avgas
> recent pressure to close airports (namely KRHV) with leaded fuel

It's always been a real estate issue with KRHV.

The nearby busy highways emit vastly more emissions than trainers, likely including lead.

What city councils refuse to acknowledge is that once you close a city airport, you can never build another one. This is especially an issue in an earthquake zone.

redis_mlc··on Reasons Truck Drivers Walk Out the Door [video]
There were some truck driving reality shows a while ago that centered around shipping app auctions.

The biggest problem was that whether the bid showed who was responsible for loading/unloading or not, whenever the truck pulled up the shipper was like, "Oh, I thought you knew that you had to arrange the loading/unloading." Some of the items were the size of a house, commercial printing presses, etc.

redis_mlc··on TikTok tells U.S. lawmakers it does not give information to China's government
> Beckerman also testified that TikTok's U.S. user data is stored in the United States, with backups in Singapore.

Why are backups in Singapore?

Never heard of US companies doing that.

redis_mlc··on Too big to cover alone: Newsrooms team up
Both the Capitol protest and antifa/BLM riots involved Democrat politicians shirking their sworn duty to provide security and policing.

The 2 people in charge of adding Capitol policing were the House Manager and Nancy Pelosi. Note Pelosi's Jan. 6 committee doesn't want to talk about that - she cherry-picked Republian members who wouldn't demand that.

Trump offered the National Guard to the Democrat cities that were burned, but mayors refused.

The antifa/BLM riots stopped just before the Presidential election, since the Democratic Party knew it was hurting their support.

redis_mlc··on YouTube deletes rapper's 'Let's Go Brandon' song claiming medical misinformation
> rumors sit in the new for months on Trump

It's much worse than that.

Virtually all news stories in 2020/early 2021 about Trump have been retracted by cnn.com since then.

Almost all sound bytes from the White House and Squad today are the opposite of what they said pre-election, especially about corona - they said they would refuse a vaccine developed under the Trump administration, and that vaccine mandates were not going to happen.

The most striking is that "Trump's Muslim travel ban list" was originally drawn up by the previous Obama administration. (The list was created because there's several countries that have disorganized passport control, so ICE can't verify any of those documents when required, which means they don't know who is trying to enter the US, when that mattered. With Open Borders, those people can now just walk across the Mexico border.)

redis_mlc··on Police can’t demand you reveal your phone passcode then tell a jury you refused
So far it has held up in the court of appeals, but there's another hearing upcoming.

Note that a defendant is in a much stronger position if they have maintained complete silence even before the password is requested - you can't just clam up halfway through a conversation.

redis_mlc··on DC3 Still Flying at 70
You can view videos of a charter service, Buffalo Airways, maintaining and operating DC-3's here:

https://www.youtube.com/c/MikeyMcBryan/videos

They have their own DC-3 parts inventory. His father discusses buying truckloads of parts at auction back in the day in one video, which are worth 10x now.

redis_mlc··on India Counting Down to 1B Doses
> 1B is very impressive

Those are Sino* vaccines, which are only about 51% effective. (WHO considers 50% to be ineffective.)

redis_mlc··on Issues we've encountered while building a Kafka based data processing pipeline
Actually, Innodb, which supports transactions, has been bundled with MySQL since 2001, but existed before then. It became the default storage engine in 2010.
redis_mlc··on Can China afford to stay isolated as world abandons 'zero Covid'?
The author appears to be a CCP mouthpiece.

Note three things not mentioned in the article:

- the Sino* vaccines are only 51% effective, so 85% vaccination rate means nothing

- Xi is a clone of Mao, who once said that 50% of the total population dying to achieve a goal was an acceptable loss.

- the CCP is has been sending BRI workers globally, spreading the coronavirus with them.

redis_mlc··on Obsidian mirror used by Elizabeth I’s court astrologer has Aztec origins
Note the Americas already had civil and external wars long before the Spanish arrived.

When you know the full history of the Conquistadors and their relationship with the local population, things are not so clear.

For example, the Spanish:

- didn't teach locals to do mass ritual sacrifice and throw the bodies down the steps of the temples

- didn't tell one of the local kings to burn his empire's library to erase any history before his reign

- didn't force their "local allies" to march on the capitals of the empires.

redis_mlc··on Why birds can fly over Mount Everest (2020)
1) jet engines are interesting because of the continuous flow and also that all the rotating parts rotate in the same direction, a huge advantage over reciprocating engines. So jet engines can do 50,000 rps, while piston under 20,000 rps.

Note that sleeve piston engines like the Rolls Royce Crecy, are much more efficient than valves, but development stopped at the end of WW2 and resources focused on jet engines.

Rolls Royce Crecy - The Most Advanced Piston Aero Engine Never Made

https://www.youtube.com/watch?v=cxK_zWgw6gY

2) the exception to continuous flow is the WW2 V-1 pulsejet engine, which has a gate that is closed at combustion time, about 42 Hz.

The pulsejet is a very interesting engine in that it's the simplest possible jet engine - literally an empty metal tube with spray nozzles and a sparkplug.

The V-1 was the first mass-produced cruise missile. The Germans also had air-to-ground (anti-ship) guided missiles both wire-guided and radio-guided with a TV screen(!)

But the US Navy was the first to build precision-guided autonomous missiles, both the all-analog Sidewinder and Wall-eye, which shared modules. The Wall-eye made the famous Gulf War photos you've seen of entering via windows. It had analog circuitry to do edge-detection in real-time.

redis_mlc··on Sony to join TSMC on new $7B chip plant in Japan
> China is a lot more open this time around. Their silk/belt-road initiatives, span across continents.

Where to start ...

You realize that BRI doesn't have grants, just debt, right?

The purpose of BRI is to build ports for the CCP navy, but have somebody else pay for them.

redis_mlc··on FAA Fumbled Its Response to a Surge in GPS Jamming
Most US pilots could not fly an NDB approach using a simple ADF today, and would end up dead in mountainous terrain.

The reason is that you have to practise doing relative bearings and wind corrections in your head, or else you fly in a spiral towards the station (unlike VOR, which displays absolute radials.) That means you will be off the protected approach path, and can hit obstacles.

If they could fly an ADF, then AM radio stations can be used if necessary. (Airlines used to pay local radio stations to do a station identification announcement upon a phone call from ops, with the radio station typically near a coastline.)

Just don't hit the radio station antenna!

Note that NDB and VOR approaches are non-precision, which means they have lateral guidance but not vertical. So with low clouds, you won't get descent info to the runway like ILS.

That's a big deal for airlines, since they have company operations minimums that may not even allow NDB approaches, which are more restrictive than standard Part 91 (GA) operations minimums. For example, there are situations where I can takeoff in a Cessna with 0/0, that airlines can't.

Great discussion forum on navigating using radio stations:

https://www.pilotsofamerica.com/community/threads/commercial...

Source: commercially-rated airplane pilot.

redis_mlc··on 2,050-year-old Roman tomb offers insights on ancient concrete resilience
What is being learned in Surfside is this:

- according to two recent independent structural model calculations based on the original plans, the building that collapsed was deliberately designed to meet only 100% to 115% of the original static loads to save money, but not the dynamic loads of rolling vehicles or interior upgrades like granite counter tops and marble wall displays.

Also, there were a few 12" columns, no column caps, and not enough shear wall areas or elevator core tie-in to resist twisting from wind loads or prevent domino column failures.

- any number of events could have started the collapse because there was no safety margin, including water intrusion and previous hurricane wind loads, but it was probably vehicles rolling around the lobby level near the pool.

To answer your question, it would cost more than the building was worth to replace the columns and slabs. The 40-year review for that building really meant a teardown had they redone the structural model. The owners were already looking at a $100,000 to $200,000 bill each for cosmetic repairs. Because of absentee owners (lessors and airbnb), that level of investment for a rebuild doesn't fly.

It's believed that the former building inspector gave a positive building review speech so that cronies could continue selling units, as negative news would have to be reported to potential buyers, killing any sales.

Note that builders who looked at the post-collapse photos even one day afterwards all wrote, "Nothing looks right in those fotos." What bothered them the most were the columns that punched through with no debris stuck to the top (pejoratively called "those toothpicks"), and yards of rebar bundles that also looked too clean.

redis_mlc··on You're Not a 10x Programmer
Yet another screed from an impostor.

Many SV startup applications were written by one programmer - I've met several.

QED: those are 10x programmers.

redis_mlc··on Why kidney failure led me to found an Health Tech Startup
Despite HN being a tech-oriented forum, most members are completely ignorant of science.

I understand that kidney donation risks are not well-understood, but ignorance permeates virtually every topic here.

Off the top of my head, I'd say that salmonella from lettuce or eating out would be one of the greatest risks to a kidney donor, though for women pregnancy might be high-risk with one kidney. An MRI might also be a concern, because of the risk of allergies to dyes affecting kidneys and the liver.

(The reason I'm shadowbanned is because dang is also ignorant about what science is. My posts are nearly 100% factual, but that doesn't fit the Marxist narrative here.)

redis_mlc··on Byzantine warrior with gold-threaded jaw unearthed in Greece
After battle in most countries in the past, you either lived or died as one cohort.

However, the Romans had enough patients over a continuing period of time to perfect plastic surgery.

So I think you're confusing emergency surgery and piercings with the art of plastic surgery.

If you think anatomical knowledge was universal, that's not true either. Japanese doctors were ashamed when they saw the first anatomy book - they had known nothing beforehand.

The US had to dig up bodies from graves at night for decades to draw those books.

redis_mlc··on Byzantine warrior with gold-threaded jaw unearthed in Greece
Bronze worked well for weapons, but was rare. Iron democratized the making of weapons, available almost everywhere on Earth except Japan.

But watch modern people try to smelt iron on Youtube in their backyard.

Very difficult and time-consuming, and very toxic.

Iron smelter staff around 1900 only lived to maybe age 30 before their lungs gave out.

redis_mlc··on Byzantine warrior with gold-threaded jaw unearthed in Greece
They knew that wearing silver or copper rings corrode, and gold didn't.
redis_mlc··on Byzantine warrior with gold-threaded jaw unearthed in Greece
Romans perfected plastic surgery because of gladiators. (Owners take care of their slaves, which are valuable.) They even used obsidian blades, which reduces scarring. That skill was lost for almost 2,000 years.

So it's not a big leap that medical staff at that time were experimenting with sutures.

redis_mlc··on Why kidney failure led me to found an Health Tech Startup
Note that donating a kidney is not free of long-term complications for the donor. This was not emphasized in the pioneering days of donations, but is considered now.

Essentially you're halving your kidney capacity, which is not noticeable in your 20s, but will creep up on you later as you age.

It also means that any toxin or infection that attacks the remaining kidney will be an emergency. Women are especially prone to UTI that cause kidney infections.

(My father was missing part of one kidney, and it was on his mind throughout his life whenever he became ill.)

So make sure you really like the person you're donating to, since there are consequences to yourself.

Also, I hate to mention this, but the CCP has halal kidneys for sale, with a replacement guarantee even. I think you know where they're harvested from.

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