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 ...

2W LED with advanced LED chip PIR motion sensor for automatic on/off operation 120° detection angle with a detection range of 3 to 5 meters 5V, 1A input power, ensuring energy efficiency and low power ...

Emma Watson is most famed for her role in the Harry Potter film series as Hermione Granger, but has also gone on to star in critically acclaimed films such as The Perks of Being A Wallflower. The ...

Abstract: Multitap complementary metal–oxide–semiconductor (CMOS) image sensors offer the capability of programmable exposure patterns. This article proposes a method to extend the dynamic range (DR) ...