I always like seeing the most recent reviews since it can sometimes show that people have started receiving knockoffs or that there's been a rapid change in quality of a product. The most helpful review is like months to a year old so it sometimes doesn't accurately reflect the product anymore. Some people really are just idiots and either purchased something very cheap expecting high quality or they give high ratings for a product when they outline serious flaws in the review.
I usually don't buy random junk off of amazon all the time like some do so when I make a purchase, I already know exactly what I want and it's something totally necessary.
Interesting that it started out as typeless but as C came from B, they introduced types only for Python to come along and make typeless popular again. Types definitely do have their usefulness but you can certainly get by without them.
That's a lot of data to transmit via satellite and satellite bandwidth is expensive. Most planes don't crash into the middle of the ocean with all of the transponders turned off so it's an expensive solution for a very rare problem. Satellite-based ADS-B seems to be the future going forward. Everyone can see a plane out in the middle of the ocean and can immediately know where to look if it happens to go down.
Basic jobs get expensive invoices from pros because they'd rather be out there working a more substantial job. They don't want to drive out to your house, maybe need to make a trip to the store, and then be out of a job for the rest of the day since they couldn't schedule in anything else afterwards. I don't bother calling a pro for something unless I know it's something that will either take the whole day or isn't something I can finish before it must be done by. I can take my time redoing a spare bathroom or painting the exterior but a kitchen renovation would need to be finished quickly.
You could apply your logic to home building though. Builders get volume discounts on materials and labor. When someone is working the same repetitive job for months on dozens of homes, they can afford to charge their base hourly rate because they know their schedule will be full. If I built the exact same home the builder cranked out, it's going to cost me more despite using the same materials and people. When people build their own homes, they are usually going for something custom so a builder-grade starter home is not the goal.
I remember it not being a huge deal to have a bunch of people at work come with flu-like symptoms. "It's just something going around." Work gave out flu shots every year but that isn't 100%. It wasn't even considered much of a faux pas to show up to work feeling a little ill. Now, showing up to work with flu-like symptoms could put you in the hot seat with HR. Having a bunch of people fall ill in the office now results in it being closed for the day for cleaning. It won't stay this way forever but it's going to be a while until most people go back to being lax on contagious diseases. Imagine companies forcing employees and schools forcing students to mask up during flu season.
Depending on the number of people in the room, this could easily turn into insane waits between when you sent your message and when everyone hears it. This would probably work best in a conference call sort of situation where you have people mostly speaking one at a time rather than just a normal IRC room where there's a dozen conversations going on simultaneously.
The sampling rate and frequency range are tied together though. The Nyquist rate says the sampling rate must be 2x the bandwidth. If you sample at 96KHz, the most bandwidth you'd get is sound waves up to 48KHz and still be able to accurately reproduce them. However, if human hearing taps out at 28KHz, then you could sample up to 56KHz and still reliably reproduce the same sound.
In RF engineering, it's typical to have all of your equipment referencing the same 10MHz clock (or a 1 pulse per second or IRIG-B). If I don't have a GPS receiver or a rubidium source, then I'll just pick the newest, most expensive piece of equipment with a built-in reference clock and fan it out to the rest of the equipment on the bench. Some portable spectrum analyzers have built-in GPS receivers so even out in the field you know you have a good reference.
People are probably more embarrassed to ask for their money back on something they have partially or entirely eaten. I can barely muster up the courage to tell my waiter that my dinner order wasn't quite right but I have zero problem with buying a couple different versions of a product and returning the ones I don't like.
The electronics on-board will degrade over time due to radiation effects and the batteries will at some point hold no charge. It's probably cost-effective to just send up an MEV to cover you for a few years while you decide if that satellite actually needs to be replaced. Commercial GEO satellites are not as popular as they once were. The new thing now is launching constellations in LEO for dirt cheap (a la Starlink). You don't need to keep LEO satellites up there for 15 year missions because they can easily and quickly be replaced. Planned obsolescence is the future.
Where I've worked, they will hand out RSA-style tokens that constantly generate new codes if you don't have a phone or don't want to install an app on your personal phone. There are even tokens out there that will totally replace any Authenticator-compatible app since the token is programmable.
People have already touched on setting the addresses using the pins but sometimes you can just buy near identical I2C parts that have slightly different part numbers because the range of user-selectable addresses is different.
Analog Devices and Linear Technology (now owned by Analog Devices) have the cleanest looking datasheets. Texas Instruments is ok but not great. Standard Microcircuit Drawings, the kind of government datasheets used for milspec parts, are absolutely horrendous and should be avoided if the manufacturer has a normal looking datasheet to look at.
It goes consumer grade, automotive, military, and then you have levels above that meant for things like space and down-hole oil drilling. Automotive is certainly a step up above consumer grade but it's not like Intel is throwing an i7 into a car. They are going to just offer fab capacity to anyone that can build on the various technologies that can be built at Intel's fabs.
I have four adapters in my house, I have one TL-WPA7510 and three TL-PA7010. They are sold as pairs so when I wanted the version with an access point built-in, I had to buy another wired version. But, you can add them individually to an already existing network. The Homeplug protocol is a standard so as long as you buy the right versions, you get max performance. These things are great. I have one in the basement for the Verizon router to plug into, one on the second floor for my PS4, the AP version behind the 4K TV in the family room, and another at a desk in the guest room. The Verizon router has a lot of interference nearby so quality is poor in some spots in the house. Quality is good, it sometimes reaches gigabit speeds but it's way more robust than wifi extenders. The apartment I lived in previously was built like a brick shithouse so wifi dropped off pretty fast once you got to the other end.
I always laugh when I see Comcast commercials for "fastest in-home Wifi". An 802.11ac router isn't going to help anything when you can only get 10/10 bandwidth on a good day.
I bought a $200 wireless Turtle Beach headset for my Xbox 360 in 2010 (released in 2008) that came with Dolby Surround 7.1 and Dolby Pro Logic IIx which is meant for creating surround sound from stereo sources. It has both a stereo RCA and Toslink inputs. You're over a decade behind the times.
I guess the weakpoint in all of these techniques to prove a photo was taken by a certain device, at a certain time, in a certain place is for someone wearing a very good disguise to publicly commit crimes in your name. Any witnesses or photo evidence is going to point to you. A full movie costume makeup kit probably costs less than what it takes to hack Apple for someone's iPhone private key.
I did a lot of searching through the Ashley Madison dump back when it came out. It was pretty easy to find people living on my neighborhood that had accounts. They might not have done anything (it was just billing details after all) but any of that information could have easily been used to blackmail someone. There were also a whole bunch of people using .gov or .mil email addresses. Like if you are going to cheat on your wife, don't make it that easy for someone to realize that you can be exploited for government secrets.
That last point might still be the case. Forget to plug your car in overnight and suddenly you don't have enough mileage to get to work. Not everyone will have access at home to a fast charger so the option will be to slow charge over a 110V extension cord or go wait at a public charger that might be a little out of the way from your commute.
I'm definitely ready for an EV but my car sits in a parking lot at home (for at least a couple more years) rather than a driveway or garage and my work has no chargers. It seems kind a dumb decision right now to purchase an EV only to rely on availability public charging stations. I guess that's kind of what I do now with regards to filling up on gas, I don't own my own gas pump at home. But, I know where to reliably find fuel that I can pay for. Maybe gas stations can start to offer charging stations for a small fee. They would be competing with grocery stores that offer free charging but I'd imagine the free part will go away quickly once there is major demand for a public charger.
The QWERTY layout isn't the best but everyone makes their keyboards the same layout. QWERTY isn't beautiful nor the most effective, it's functional and familiar.
Lead time is usually not a huge issue as long as the lead time is consistent. 3 days or 3 months is usually not a problem since you can build you manufacturing process around a given lead time. The cost of transport is going to be much more of a concern. If it takes one month to get a driveshaft in and three months to get windshields, you just order the windshields a couple months earlier than the driveshafts since you won't need the windshields until the last bit of the assembly line. Lead times are an issue for perishable goods though. If your pomegranates are going to be rotten by the time they arrive in port, whats the point.
The other additives in hand sanitizer can be anything from methanol to discourage consumption (and avoid liquor taxes) and fragrances. I've bought some little bottles before that leave such a strong fragrance you have to go wash your hands before eating anything anyway.
I bought a gallon of some stuff early into the pandemic from a online retailer that sells commercial fog machine supplies. It smells likes farts. I felt bad giving bottles of it to friends and family but it wasn't like there was much else available on the shelves and at the time touch contamination was still a big concern. I added some fragrances so it smells mostly like lemons now and only a hint of farts.
We bought another gallon from a cosmetics supply wholesaler and it was much less stinky.
You could make the same argument for any sort of negotiation the government engages in with a private citizen or corporation. I really don't see the difference between a worker employed by the government and one employed by a private corporation. Both want to pay the worker as little as possible. Both want to provide as little protections in the workplace as possible.
It won't be pretty but if you can access the CPU from the top or bottom, you can strap a desktop heatsink down with zipties running both ways around the laptop.