Tubal ligation — the procedure that blocks eggs from traveling through the fallopian tubes — is an extremely effective way to lower one's chances of pregnancy to almost zero. Here's how it works. When ...

The video explains the operation of the vacuum tube, specifically the triode, which is essential in modern communication devices like radios and telephones. It describes how a tungsten filament emits ...

[Nick Poole] shared his circuitous journey into the obscure world of homemade vacuum tubes on the Supercon 2022 stage. It began innocently enough when he saw [Usagi Electric]’s single bit computer ...