2 votes

Confusing terminology for "normally closed/open" - It means the opposite in electronics (relays) versus fluids (valves)

It may help to think of the switch in terms of contact gap. A "closed" contact has no gap and conducts. An "open" contact has a gap and doesn't conduct. In the case of valves it ...
  • 8,984
2 votes

Is it really sane to drop buckets of water into a (CRT) TV on fire after unplugging it?

The risk of electric shock is that charge is stored in the high-voltage capacitors. The risk of shock occurs if you provide a path from one terminal to the other - only then can current flow. This is ...
  • 8,984
1 vote
Accepted

Why do inorganic LEDs wear out?

This is not a rigorous answer, but even a piece of steel will change if you just let it sit there for long enough. And I'm not talking about rust; I'm talking about the additives dissolved in the ...
  • 3,925
1 vote
Accepted

mg996r - maximum weight for robot arm

In order to determine if the robot arm can lift the object, you would need to determine the torque you need from the motor. You should read up on how torque exactly works online. There is a lot of ...
1 vote

Modifying bike wiring harness to add hazard lights

Try just bridging out the two sets of lamps with a switch. To switch on hazard mode close the switch and select either left or right indicator. How this works out depends on whether or not your ...
  • 8,984
1 vote

Force required for a power generator in a coal power station

It is common practice to "motor" a turbine/generator assembly slowly in the absence of steam or water flow, while maintaining full lubricating oil pressure, so the sheer weight of the blade ...
1 vote
Accepted

Why do identical-looking power plugs randomly not fit in some sockets in the same power strip?

Apparently the type of power strip your picture shows is one with something like a child protection. I.e. the green parts (kind of a slider) visible in the picture. Those are mechanical devices which ...
  • 343
1 vote
Accepted

Flood light pole components

https://m.youtube.com/watch?v=1VSkhz8y-hY In here you can see, at 17th second, that these poles are located at the corners of the parking lot of the shopping center. And they are not present elsewhere ...
1 vote
Accepted

Can a battery-powered electric vehicle be driven through a dust storm?

I know of cars with the early electronic ignitions would misfire and cut out close to an army communications station. After some of the updates to the early electronic ignition systems they stopped ...
  • 14.6k
1 vote

Solving short electricity interruptions with an UPS

I realize it might be a bit moot with the delay in this answer, but I would never advise an industrial plant to install a high-capacity UPS for process loads. The loads that your plastics factory are ...
  • 115

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