15h
comment Replacing C with JavaScript as an introductory programming language
It's just that tools are much more changeable than concepts. Things like types, lambda calculus, iteration and recursion are concepts. The debugger is extrinsic to the language and just a way of inspecting what's going on. It's a map not a territory. It should be possible (although time-consuming!) to write mostly-correct programs on paper without ever actually running them.
17h
comment Replacing C with JavaScript as an introductory programming language
"Debugger" and "Breakpoints" are functions of the tooling and not fundamental programming concepts. There are target C platforms where you don't have either.
17h
comment Could someone identify this old prototyping board?
Hadn't thought of pitch incompatibilities. It looks vaguely Eurocard but Eurocard has DIN connectors. Is there any standard it would fit?
17h
comment The real flow of electricity
Neither of the two things you have written is true if you're referring to conventional current. + is the positive and current flows from + to -.
18h
answered Could someone identify this old prototyping board?
18h
answered Why not use monochrome LCD's instead of E-ink?
21h
comment What value determines the current flowing between two interconnected ICs?
If you put a diode in the path, and there isn't a pulldown, how can you drive the input low again once you've driven it high? You'll be limited to reverse leakage current through the diode.
21h
comment Formulas needed to design an Alternator
(Also, no formula can possibly give you an answer for four output variables but only one input variable!)
21h
comment Formulas needed to design an Alternator
You could make an entire degree course out of the subject of generator design. Here's an example design document which includes a good chunk of the theory: diva-portal.org/smash/get/diva2:540122/fulltext01.pdf
21h
comment If future farming is largely automated by robots, what produce would still require human farmers?
@immibis That requires an objective metric for artisticness to optimize towards.
1d
comment Basic microcontroller to dc motor setup
Comments are more than usually unhelpful .. pick a suitable motor first, then a motor controller or transistor-based drive rated for the stall current of that motor.
1d
comment sensors for measuring precisely distance
It could probably be done with milimeter-wave radar. That's not exactly cheap off the shelf technology either.
1d
answered Best Hardware for Accurate Point Tracking System
1d
comment If future farming is largely automated by robots, what produce would still require human farmers?
Bonsai trees: un-automatable artistic input is required.
1d
comment How inhuman can a human be?
Quite a lot of SF novels have been written about exactly this question.
1d
comment Voltage signal significantly drops when BNC cable is connected
Probably. Although transimpedance is a specific configuration: electronicdesign.com/analog/…
1d
comment Voltage signal significantly drops when BNC cable is connected
It doesn't say what its input impedance is, but it's probably 50 ohms. Take it off and the voltage drop will go away. That is where your impedance problem is, nothing to do with the cable. You need either a high-impedance ADC input or a transimpedance amplifier on the near end of the cable.
1d
comment Voltage signal significantly drops when BNC cable is connected
What is on the other end of the coax cable?
2d
comment Why are lead-acid batteries preferable for submarines?
Good Li-batteries are a product of the last 20 years, while most of the subs in service are older than that.
2d
answered Electric potential and the flow of electrons in a battery
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