The concept of building your own hydroelectric generator seems simple at face value: use gravity to impart as much force as ...

There’s a lot of laboratory equipment out there that the casual hobbyist will never need to use, but that doesn’t mean you ...

If you often lose power where you live, whether because of seasonal storms such as hurricanes or due to problems with the electrical grid, having a whole-house generator can be very convenient. It ...

When winter storms knock out the power, they rarely give much warning — and suddenly, everyday essentials like heat, lights, and phone chargers feel anything but optional. The best portable generators ...

Generac Generator purchased in May of 2021. Serial number: 000000003008290317 Unit Description: 48KW 4.5L 120/240 1P NG AL In the 4+ years we have had this generator ...

Abstract: This work describes a hybrid micro-electro-mechanical-systems (MEMS) microphone based on combined piezoelectric and capacitive transduction mechanisms to enhance the sensitivity. The ...

Abstract: We are developing an Interference Filter based Extended Cavity Diode Laser (IF-ECDL) system, operating at 1550 nm wavelength, comprise of the opto-mechanics, driving electronics and computer ...

Cannot have its capacity expanded by the addition of extra battery modules. Has 4 regular USB-A ports, but no USB-C ports. Does not display time to full charge. Has carry handles, but lacks wheels and ...