Perpetual motion devices are either a gag, a scam, or as in the case of this particular toy that [Big Clive] bought on AliExpress, a rather fascinating demonstration of a contact-free inductive sensor ...
A closer look at a device claimed to run indefinitely, exploring the science behind perpetual motion and why such systems are widely considered impossible. Velvet and Veneer steal Floyd's talent (full ...
A new device with model designation A4R-GUIK2, described as “interactive device” has just passed through the FCC. Historically, this is how Google’s Nest Hub devices are listed in the FCC. The ...