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Very high caffeine tolerance (weirdly: sometimes not) as a non-regular coffee drinker

If I just had high caffeine tolerance I’d guess it’s either because of fast caffeine metabolism or my ADHD. Sometimes a regular cup of coffee is more than enough to wake me up and improve my ability to concentrate and sometimes not even a 4x Espresso is enough, with no discernible reason why. I have tried drinking coffee on...

How was your Father's Day?

Mine was mostly pretty low-key, which is how I like it. I got some small gifts from my wife and daughter, including a 7oz hammer with a colorfully painted handle. I actually really liked that. For dinner my mother-in-law took us out to an expensive steakhouse, where I had a wonderful ribeye, but I don't think it was worth the...

Weird cable with USB A connector with 5 pins

Hello, I recently bought a USB A to C cable and it is pretty weird. It is a USB A to USB C cable, seemingly USB 2.0 but the A connector has 5 pins, the 4 pins of USB 2 and what looks like pin 7 of USB 3.0 so in the middle of the back row, the other pins of USB 3.0 are not there and the plasting moulding only allows for that one...

What creates resistance in a circuit?

I'm planning to add a momentary switch to a single loop DC circuit. Will this cause any amount of resistance in the circuit? I'm a complete noobie when it comes to electronics, any resource links or clarification is appreciated. I know the type of material/width of wire and a pot will cause resistance but will any component put...

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