tocs3

47 ms·

751.
by tocs3 3y ago
Nand to Tetris.The Elements of Computing Systems: Building a Modern Computer from First Principles https://www.nand2tetris.org/ Free (also some paid online certificate programs). At least worth a look.
752.
by tocs3 3y ago
I would think an iPhone would have a 3 axis magnetometer and 3 axis accelerometer to sense the phones orientation (and 3 axis gyro). The magnetometer would be where the compass functions would come from.
753.
by tocs3 3y ago
I have an old Porta Cable 505 finish pad sander (maybe abound 50yo) that I would not want to give up. It will run all day every day. One nice thing about it is its flat top. I can turn it over and use it as a sanding table for small parts.
754.
by tocs3 3y ago
TLDR: The law says the No Smoking signs need a button to turn them off and on. The new planes (Airbus A321neo planes delivered in Dec.) turn on (and stay on) automatically. the fAA has given permission for United to use the automatic signs
755.
by tocs3 3y ago
"NDD bikes were designed to be more aerodynamic by completely eliminating surface area." Not sure nut they do not look like they are eliminating surface area. Not saying they are less aerodynamic. Also, I raced road bikes in the l
756.
by tocs3 3y ago
Without being an expert, I would say that samples on Earth would let us (or at least those who look at the samples) look in ways the rover was not designed to look. There is a lot of analytic equipment that is here on Earth but not on Mars.
757.
by tocs3 3y ago
I am also but the article is about the ancient lake also. It has some interesting GPR (radar) images.
758.
by tocs3 3y ago
And, things tend to get easier over time. Technique and technology may develop to make things go smoother. The reuse aspect of it is also (discussed in the auricle). I have seen lots of stuff brand new in packaging or tags still on them thr
759.
by tocs3 3y ago
I clicked on the link for the pictures. Then looked at the wiki article on Einstein Rings. It makes me wonder if there are examples of nebula being mistaken for the rings (or vise versa).
760.
by tocs3 3y ago
I would like to see someone "disrupt" the consumer printer industry.
761.
by tocs3 3y ago
"but this one was unique because it was first detected by scientists roughly three hours before impact — only the eighth time that researchers have spotted one of these space rocks before it hit." Maybe I did not read close enoug
762.
by tocs3 3y ago
I do not really like the term "common sense" as it is more like common experience. It is not hard to learn what fractions are but I do not think it is something that any one is born with and there is other notation to deal with fr
763.
by tocs3 3y ago
Maybe also overkill but I saw this years ago and thought it was interesting. https://blog.singleton.io/nnrccar/ https://hackaday.com/2012/01/03/nerual-networks-control-a-to... Also, I ha
764.
by tocs3 3y ago
I live in an area that has a lot of "free range" cattle. The sometimes eat the party balloons the people release at parties and other events. It is not good for the cattle. So there are other good reasons to ban the balloons. Heli
765.
by tocs3 3y ago
I am the poster that posted this a bunch of times. I kept getting a (I do not remember now exactly) "bad gateway" message when submitting the post. I was assuming it was not getting through. When I noticed I was able to delete one
766.
Ask HN: What are some good food suff to have on hand when the power is out
20 points by tocs3 3y ago|49 comments
767.
by tocs3 3y ago
I have commented below and I would say more but I have to go pay my credit card bill. Real life sucks.
768.
by tocs3 3y ago
There were more real world options. Roller skating rinks, malls (a sign of the online world to come but still real world), water skiing. Also, there was real content in a lot of the older media (Scientific American,Popular Mechanics pre 90
769.
by tocs3 3y ago
Also, it was when much content was meaningful. Scientific American was interesting. Popular mechanics had actual mechanical projects. Computer magazines were all adds but even the adds were showing amazing things full of real potential. Now
770.
by tocs3 3y ago
In my experience the older styles media were consumed in "down time" even if it was for a minute or two at work. People (in my memory, I'm 50+yo) did more real life things. There were malls, movie theaters, skating rings, box
771.
by tocs3 3y ago
The more casually social media is used the more packaged it is. That is why you use a tool to mute the youtube content. I think youtube is amazing. There are incredible gems entertaining, practical, etc. The trouble is you have to wade thro
772.
by tocs3 3y ago
So, I know I am a little late to the party here but I think party of the problem is not the smartphone screens. As a society we are doing dismal job of making reality an interesting place to live. As an example education (at least for me,
773.
by tocs3 3y ago
We get our electricity from Pedernales Electric Cooperative (PEC) here in central Texas. The do a good job. We pay about $0.09 kw/h. https://www.pec.coop/ I think there should be more COOPs around. Just having more cho
774.
by tocs3 4y ago
Also the Instituto Nacional de Matemática Pura e Aplicada is in easy walking distance.
775.
by tocs3 4y ago
Maybe: Redshirts https://en.wikipedia.org/wiki/Redshirts_(novel) I have not read it but maybe I will.
776.
by tocs3 4y ago
I do not how practical but maybe a business card with different bits of information depending on how it is folded.
777.
by tocs3 4y ago
Buy/save scrap metal the market fluctuates a lot. (aluminum cans and copper Study more math. You will like it more later on. Bitcoins early.
778.
by tocs3 4y ago
It is not going to fill the oceans with cement, it is a naturally occurring algae. I would like more information about how you get limestone and not just powdery calcium carbonate. A slightly better link at: https://www.colorado.
779.
by tocs3 6y ago
The La La Soufriere volcano on St. Vincent Island as seen from the GOES-East satellite.
780.
by tocs3 6y ago
A mechanical Conway's Game of Life.

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