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Comment Re:Not the MAX (Score 1) 123

The hidden issue with the MAX was the lack of adequate pilot training. Nothing I say is meant to vindicate or defend Boeing. But much of the growth are in foreign low-cost airlines that save money on maintenance and pilot training. (An improper activation of MCAS would mimic a runaway trim, which is a condition that all pilots are supposed to recognize right away, and the solution is the same: turn off the automatic stabilizer trim.)

The MAX crash on Lion Air was caused by a defective AOA sensor. The part was known to be bad, and supposedly replaced before the final flight. The flight before the doomed one saw the MCAS trigger but the crew knew how to deal with the problem. They turned off the trim system and continued to the destination. However, the crew of the doomed airplane kept on fighting MCAS instead of turning off the trim system.

The Ethiopian Air incident saw the crew react properly by turning off the electronic trim system when MCAS activated. However, the crew accidentally got their airplane flying too fast so they were unable to manually trim their plane up. The last thing they did was to turn on the electronic trim system again hoping to use it to trim up, but MCAS fired again and killed everyone.

Again, Boeing really fucked up. Using only one AOA sensor? Allowing the system to trigger an unlimited number of dives? Giving the system the power to almost fully deflect the horizontal stabilizer? Hiding MCAS from pilots? All of that was incorrect. But Lion Air wouldn't have happened if the defective AOA sensor was correctly replaced.

Comment Not the MAX (Score 3, Interesting) 123

The airplane in question is a 737-800, not the MAX. The plane basically went straight down into the ground. MCAS would have caused a rollercoaster pattern because the system only activates for a few seconds at a time. I can't even imagine what would cause a plane in cruise to dive straight down like that.

Comment Re:And how does he defend the false positives? (Score 1) 145

That's why they aren't debuting this feature in China but how long will that take to occur? The most common way of sending child porn is actually Facebook Messenger. End to end encryption will prevent this from being caught. But the tradeoff is lack of privacy.

Comment Heat Pumps Are Basically "Free" With Central Air (Score 1) 361

Here's an interesting video on heat pumps from Technology Connection. Essentially, heat pumps are just air conditioning units with circuitry to reverse the flow of coolants. He's angry because we could make all central air conditioners heat pumps without too much added expense. Depending on the climate, heat pumps may use a quarter of the electricity as regular heaters using resistors. The downside is that it doesn't work in extreme cold.

Tesla started putting heat pumps in their cars with the Model Y. Up until now, heating an electric car took a lot of energy. The heat pump will allow an increase in range in cold weather by reducing the amount of energy needed to heat the car.

https://www.youtube.com/watch?...
https://cleantechnica.com/2020...

Comment Re:I don't get how this is different from AstraZen (Score 1) 148

Novavax has shown strong efficacy in trials. It's 96% effective against the native Wuhan strain, 86% against the UK strain, and 55% against the South African strain. There were no deaths or hospitalizations in any of the vaccinated participants. Notably, AZ isn't effective against the SA strain.

https://ir.novavax.com/news-re...

Comment Re: Johnson & Johnson is not an mRNA vaccine (Score 2) 148

Both AZ and JJ use the adenovirus to carry DNA into the nucleus, which then makes the mRNA that goes to the cytoplasm where the spike protein is made. The DNA remains apart from the chromosomes. Neither have spike proteins on the adenovirus. Furthermore, the adenovirus vector is replication deficient and cannot spread or infect the human host beyond the amount delivered in the dose.

Comment Microsoft 365 Doesn't Support Security Keys (Score 2) 23

At this point, industries in secure fields should require security keys (FIDO). That's it. Why do we keep seeing dumb crap like this happen again and again? The federal government should pass a regulation requiring all financial and health companies to support FIDO or OTP on their consumer-facing websites within three years. It's crap that we're letting this happen again and again.

Comment Re:What? (Score 2) 180

The heavy movers are already here in the effort to beat the shorts. Look at Friday's trading. The shorts were ladder trading (selling the shares back and forth between themselves to lower the price artificially), dropping the price precipitously. However, the share price hit a $250 wall set up with a party who threw in a multi-million dollar purchase order. Similarly, the shorts tried to dump the stock fifteen minutes before the markets closed in an attempt to have the January calls finish out of the money. All of a sudden, huge money flies in at the last five minutes to push the price to $325 at closing. So don't believe the hype that it's all Reddit. Heavy-hitters are out against the shorts.

Comment Re:social media needs some good ol' democracy, fas (Score 1) 180

There's no "agreement" on Reddit. It's more like someone saw that the Emperor was wearing no clothes, published the information that lead him to that conclusion, and then a bunch of commoners starting buying up all the clothes so the Emperor would have to pay a ton of money to cover his ass.

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