By the time the Cray-1 was designed, Seymour Crays children where in college. This might have applied to when he was designing the CDC 6600 when the children were younger. I know this because the Cray kids were a couple years ahead of me in high school. There are a lot of stories like this put out by John Rollwagen to build up Seymour's design creds.
You need to think of the cost of this kind of treatment at this stage as R&D. If it works thousands of people will benefit, have longer lives and contribute back more than the lifesaving treatment will cost.
States should stick to running a state patrol, maybe a university or two and a court system. Otherwise, stay out of peoples way. Don't collect huge bribes from cable providers to limit competition.
I have one firm rule these days. No rent seeking behaviors. This avoids talking to phone centers in India or some other foreign country, where the person on the other end of the phone barely speaks English to try to get the service cancelled or to fight aggressive billing.
When they said there were thousands of derailments each year in the U.S. i found a source on the internet that said the total for all derailments in Japan in 2020 was a grand total of 6.
Not to mention how these heavyweights will crush the hell out of our highways.
Road damage is to the 4th power of axle weight. Will a fleet of electric cars and trucks we will be spending a huge amount on new concrete and tar. Both are significant CO2 sources.
Maritime Law had a provision for salvors that saved ships in distress from sinking. If a salvor saved a ship from sinking, they were entitled to a percentage of the worth of a ship. Maybe terrestrial law needs something similar in the case of uninsured building on fire.
Look on Hackaday for "Why do you need to use decoupling caps". I am not seeing any talk of decoupling caps in any of this persons writeups. Maybe they are there and I am just not seeing them. It used to be when designing with LS ttl you needed one per chip to make sure switching noise did not get onto your power supply rails.
Otherwise, a great project for learning.
University of Minnesota hospitals have developed a method of doing Fecal Transplant using freeze dried pill that can be taken orally. I'm looking for someone to make a sample high in prevetella stecoria that has benefits for prostate cancer patients.
According to Wikipedia, California has 5-7 billion barrels of oil in untapped fields in their coastal waters. Some can be tapped using existing wells offshore or onshore wells using directional drilling. This is 10x what is in a full US petroleum reserve. Maybe tapping these would go a long way to lowering prices?
(4000/3500)^4 = 1.70 so that 70% more road damage with a fleet of EVs. I don't know how high Vehicle Registration is in your state, and Fuel Tax, but it does add up to a surprising amount that mostly goes into rebuilding highway infrastructure. So it does need to be accounted for. Our transportation highway network is a system.
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The environmentalists killed a zinc mine in my state due to pollution concerns.
Of course every pound of zinc not mined meant more steel without zinc protection, and hence more rust and more mining of iron ore. Arguments like this were completely lost on them.
How much will they weigh compared to a Diesel bus? Road damage is to the fourth power of axle weight. Any cost savings may be just shifted to the road department for fixing pot holes. I think the VW EV is almost twice the weight of a same size ICE car. 16x the road damage.
Plus, how much damage when this EV bus slides on the ice and hits something? Twice the damage if twice the weight.
I worked for Cray Research in the 1980s. A lot of the CAD software for the Cray 2 ran on a Z80 based CPM machine called the Intertec Suberbrain. Then we got a bunch of PCs from ATT called the ATT 6300 (Actually made by Olivetti). We figured out that if we replaced the 8086 in the ATT 6300 with a NEC V20, we could run all the Z80 software on the ATT 6300 by putting the V20 into Z80 compatibility mode. Saved a lot of work and time for us.
I haven't trusted Charlie Munger at all since reading a paper he wrote about how wonderful an investment in Coca-Cola stock is. He told all about their great growth rate, cash flow etc but never once mentioned if drinking caffeinated sugar water on a regular basis is good for you (its not, its very unhealthy).
One of the most intelligent people I went to college with just always seemed to ask the dumbest, most simple questions to the professor. I know now, that what he was doing was establishing the ground floor so to speak of his knowledge. The first principles. Once he had those in hand, he knew he could use logic and deduce most of the rest. Especially when grounded in the mathematical equations that went along
with the first principles.
The "Stuff Made Here" guy on youtube is working on an "unpickable" lock. He has made some neat stuff including a pool cue that can't miss and a basketball hoop that doesn't miss.
Have you tried the simple solution of putting an ice pack on your back? Also, stop driving in your car with your wallet in your back pocket. Also, avoid hot tub as this will make it worse. Don't sit for long periods. Get up and walk. You look young and healthy and these are the solutions I had when I was younger when I had back pain.
Left out my favorite from Steve Martin. "The French have their own word for practically everything!"
But seriously, left out from the list of great of Frenchmen Laplace, Lagrange, Galois, DeLambert etc. But I guess the list of mathematicians would have made the book too thick.
So do pdf-417 barcodes. I remember writing the code for pdf417_decode and pdf417_encode (freeware) back in the day. The Blahut book on error correcting codes was a great help, but all the examples where using binary galois fields. The pdf-417 used a field of powers of 3 mode 929, so my brain had to figure out how that worked and put it into code.
I did some work in 2000's (aughts) using a Zigby and a spare water meter to keep track of leaks and water usage on a computer for home use. I even made a youtube video (since deleted by youtube). I was a Best Buy recently and saw essentially the same produce that was "invented" by a guy in California and developed by his son into a multi-million dollar company. Trying to piece together what happened 13 years ago is tough, I can only wonder at how hard it is after 30 years. There is a lot of corporate mytheogy that
is allowed. When I worked for a certain supercomputer company, they put out the myth that the founder spent his spare time digging a tunnel from his home to his lakefront beach. Not true, but got the company a lot of free PR.
Article is striking in its contradictions. Amtrak it is said was approaching profitability but somehow has $30 billion dollars of needed repairs on the North East Corridor routes? How about users of this train pay in terms of higher ticket prices? And if they can't there are Zoom meetings now instead of adding car lanes.
I believe that the Cray-2 used 3M fluids (flourinert) for liquid immersion cooling when it was introduced in 1985. It was in several data centers including one at Lawrence Livermore Labs. It was not something invented by crypto currency miners or Microsoft. Get your facts straight Microsoft.