Iain Boyd

Professor of Aerospace Engineering Sciences, University of Colorado Boulder

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A television reporter reacts to being hit by a heat ray during a demonstration of the U.S. military’s Active Denial System. Paul J. Richards/AFP via Getty Images

Science & Technology

Directed energy weapons shoot painful but non-lethal beams – are similar weapons behind the Havana syndrome?

21 Sep 2021

4 min read

A new-generation weapon, in white, launches from an older one, the B-52 bomber. Mike Cassidy / US Air Force

Science & Technology

US, Russia, China race to develop hypersonic weapons

02 May 2019

3 min read

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