radio waves

Social media influencers who climbed the Empire State Building may have been exposed to radio waves, according to a source. Their actions caused a temporary shutdown of the building's antenna, which remains in use.

The QuadRF is a device that enables users to visualize the world through radio waves. The article, published on Hackaday, highlights its capabilities and potential applications in radio wave analysis.

Caltech is preparing to build the world’s most sensitive radio telescope to observe cosmic radio waves from sources like black holes and pulsars. The project will utilize advanced telescope designs, including single-dish structures like China’s FAST and array systems such as the Very Large Array in New Mexico.

Motorola Solutions acquired Israeli drone defense startup D-Fend for $1.5 billion. D-Fend's technology uses radio waves to commandeer UAVs rather than jamming or intercepting them, and its system is deployed in over 30 countries.

Astronomers used Australia’s ASKAP radio telescope to trace repeating cosmic signals to a rare stellar system where a white dwarf siphons material from a red dwarf companion, emitting radio waves and X-rays every 1.4 hours. The discovery solves a long-standing mystery about the source of these signals.

German scientists have developed a method to identify individuals using ordinary WiFi signals by analyzing how radio waves reflect in a room. The technique can recognize people even when they are not carrying devices or have their phones turned off.