Two lemon batteries, connected in series, can (just barely) power a red LED. Making a lemon battery was one of the sciencey activities I encountered frequently→
Congratulate me on removing these aluminum chips without sending any of them airborne. The lengths of 30cm x 30cm T-slot extruded aluminum (aka 80/20)→
A Hong Kong company is running a an ad campaign in which a loan is anthropomorphized as a cute woman in shiny knee-high boots and a really short cheerleader→
At the very least, the spikes ought to be sandblasted and repainted periodically. And stainless steel barbed wire exists. The orientation of the spikes→
Yes, it pleases me to believe that these four 2N3638A transistors are NOS. This evening’s tinkering session is going to involve yours truly double-checking→
From left: call button receptacle, call button plugged in (button itself dangling) with red reset button overhead, and a red triangular emergency-pull→
You Need Cry, Dear sort of, very loosely, sounds like the characters printed in Chinese beneath the nonsensical English. The Chinese translates to something→
