Defense

Today, underwater sensors cannot share data with those on land, as both use different wireless signals that only work in their respective mediums. Radio signals that travel through air die very rapidly in water. Acoustic signals, or sonar, sent by underwater devices...

NASA technologies have led to many of the commercial products and innovative solutions we use every day, from memory foam and freeze-dried foods to exercise equipment and water purifiers. The October issue of Tech Briefs showcased a number of these NASA spinoffs. Read the Tech Briefs feature article, and share...

Electrical power lines pose a serious crash hazard to helicopters and other air-based vehicles, especially small aerial vehicles such as unmanned aircraft systems (UAS). This is because power lines are so widespread, hard to see, and strung at roughly the same height above the ground at...

An algorithm was developed that enables a team of unmanned aerial vehicles (UAVs) to communicate and work toward a common goal. The tool could be used to improve security or capture images simultaneously over a large area.

A compact and portable system is used to monitor and store real-time measurements of stray energy through a pyrotechnic firing circuit using infrared technology. The infrared sensor is mated to the NASA Standard Initiator simulator, and is calibrated such that the current input through the...