Commented

Is “harvesting” small amounts of electricity a fools errand?

Serious question from a beginner in electronics. For reasons I do not fully understand, I have become fixated on the idea of collecting small amounts of electricity from “interesting” sources. I don’t mean “free energy”, instead, I mean things like extracting a few mV from being so close to a AM radio tower using two...

YSK: you can use a flashlight to direct cockroachs in the direction you want.

Why YSK: If you've ever had cockroaches in your home, you would be familiar with the feeling of unease that comes when they escape your clutches while roaming freely within the crevices of your home and soiling your belongings along the way. Before that happens, you can use a flashlight to direct them to your 'striking zone.'...

Meter recommendations - light, moisture, ph, etc

I've been keeping plants for about 5 years and have not bought any meters to track and test light, moisture, temp, ph, and all that. Are these a necessity? I am starting to think that I need these tools to ever get some of my pants to thrive in my dark home which gets pretty cold in the winter. What do y'all think?

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