Hi Tech & Innovation

Heat tests could help police trace 3D-printed 'ghost guns'

Curtin University researchers may have found a new way to help police trace 3D-printed firearms, after developing a new method of analyzing the plastic used to make them. Homemade plastic weapons present a growing challenge ...

Engineering

Engineers develop stealthy, low-cost tech to detect drones

Florida International University researchers have developed a new way to detect incoming drones using the unique magnetic signatures generated by their motors—offering a detection method that is stealthier, safer and cheaper ...

Engineering

Ultrasound creates a tube that guides matter through the air

A small stream of liquid flows quietly in midair, horizontally, as if inside an invisible tube. Nothing touches it. About 5 centimeters (2 inches) away, a cylinder lined with hundreds of tiny speakers surrounds the stream, ...

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