In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...

Making a servo tester using an Attiny85 micro chip, Attiny45 also works for this project. This diy servo tester is as good as any other servo tester, the difference is that it can be programmed to do ...

Ultrasound is not only used as an imaging technique but targeted pulses of ultrasound can be used as a highly accurate treatment for a range of brain diseases. A review shows that the new treatments ...

A lawsuit argues that the state’s regulations would illegally force a rapid transition to electric vehicles. By Maxine Joselow and Lisa Friedman Brian Joondeph, a Colorado-based ophthalmologist and ...

Natural water storage is shrinking, pollution pressures are mounting, and floods and droughts are intensifying. The World Bank Group supports countries in managing water sustainably, reducing climate ...