Scientists developed a new way to create electromagnetic Terahertz (THz) waves or T-rays. The researchers behind the study say their new stronger and more efficient continuous wave T-rays could be used to make better medical scanning gadgets and may one day lead to innovations similar to the 'tricorder' scanner used in Star Trek.

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T-rays technology could lead to hand-held medical scanners (http://www.patexia.com/feed/t-rays-technology-could-lead-to-hand-held-medical-scanners-2284)