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 ...

In this video, I created a blood oximeter by using the MAX30105 particle sensor to figure out the changes in color of passing ...

As Iran unleashes a wave of retaliatory drones strikes on critical infrastructure around the Persian Gulf, Ukrainian expertise in countering those drones appears to be in demand. Days into the war ...

Iran is using cluster bombs for its attacks on Israeli cities, officials said, making strikes harder to stop for the Jewish state’s already burdened air defenses. Images of Tehran’s retaliatory ...

The clicking of a Geiger counter is well enough known as a signifier of radioactive materials, due to it providing the menacing sound effect any time a film or TV show deals with radiation. What we’re ...

The United States, under my leadership, has demonstrated a sustained commitment towards achieving the dismantlement of cartels and foreign terrorists operating in the Western Hemisphere. My ...

An Iranian Shahed exploding drone launched by Russia flies through the sky seconds before it struck buildings in Kyiv, Ukraine, on Oct. 17, 2022. (Efrem Lukatsky/AP) An American anti-drone system ...

In early March 2026, U.S. Central Command confirmed the first U.S. fatalities of the Iran conflict. A drone strike at Port Shuaiba in Kuwait killed six American servicemembers. A counter-drone system ...

The Pentagon and Middle Eastern countries say that most of the drones have been intercepted. But some have slipped through and caused damage. By Eric Schmitt Helene Cooper and Sheera Frenkel Eric ...

Whitening strips are a popular dental product that may help remove stains from and whiten the teeth. While they are not as effective as treatments from a dentist’s office, they can be a more simple ...