twawaaay

75 ms·

721.
by twawaaay 4y ago
Yeah, it is nonlinear and I did apply three term ploynomial correction as per manufacturers spec sheet.
722.
by twawaaay 4y ago
You might be right about PTCs though I now can't remember exact reason for choosing PT100. It probably wasn't just linearity. I think I had other problems like controlling amount of power dissipated on the sensor (large changes in
723.
by twawaaay 4y ago
Theory is closer to practice in theory than in practice. PT100 is 0,4 Ohm/K. Or 0.0000000004Ohm/nK. This means, at 100Ohm, you are measuring 4 parts per (american) trillion for that nK. Good Luck and please, report how many of tho
724.
by twawaaay 4y ago
I don't remember the exact PT100 I used but it wasn't very expensive (still probably one of the more expensive things I ever bought per unit of mass -- they are probably more expensive that diamonds). It was definitely 4 wire (you
725.
by twawaaay 4y ago
It wasn't anything special. I am an amateur EE and not especially talented. I did some cursory search on the Internet, found a circuit that was looking promising and brute forced it by using best components I could find and then oveniz
726.
by twawaaay 4y ago
I have built a thermometer for an automation project with the requirement to be able to measure rate of temperature change 50 times a second with resolution of 0.001K/s (between 50 and 140C). I can tell you, I spent probably a month ju
727.
by twawaaay 4y ago
It may be an American import in your country, but dating has been popular in many countries and almost entire western world throughout last century. For example, I come from Poland and one on one dating has been hugely popular throughout Po
728.
by twawaaay 4y ago
The difference between speculation and investing isn't in that you want to earn money (everybody who buys stock want to increase their wealth). The reason is for why you pick this particular instrument. When I buy stock (or when Berksh
729.
by twawaaay 4y ago
> Being happy about retail investors losing money is immoral. I hope you realize that. No, it is not immoral. Retail "investors" should know better than "invest" into things with very shaky connection to reality where
730.
by twawaaay 4y ago
The stock market isn't speculation (though there is a lot of speculation on stock market -- these two sentences are not in conflict). Speculation is something that happens when you start buying and selling for reasons that are not at a
731.
by twawaaay 4y ago
I am so happy about this. I hope this is going to sour crypto for "investors". I use quotes, because they really are not -- investing should be reserved for fronting cash to create some value (like buying stock to infuse capital i
732.
by twawaaay 4y ago
> The only difference between crypto and e-betting is that everyone got to be a winner on the crypto markets for a while. Is also description of a bubble or a pyramid.
733.
by twawaaay 4y ago
Force a company to bear financial responsibility for locking a user out of a FREE product where EULA says they reserve the right to do so. Do you see where your logic is failing?
734.
by twawaaay 4y ago
In general this is a mistake of interviewer asking question they would not be able to answer themselves. It is super easy to get this wrong. A problem seems much easier when you know the solution. Also, as interviewer you don't want to
735.
by twawaaay 4y ago
I've dropped the compulsion to make everybody like me a long time ago. Actually, this is by design. See, the best outcome is when people who would not be able to work together productively find it before signing the contract. You may n
736.
by twawaaay 4y ago
As an interviewer I can tell you are absolutely missing the point. Why would I ever want to hire a developer without seeing them perform? And since being able to program a small piece of code to specification is such a basic, important part