News tagged with laser pointer

Manipulating light at will

Electrical engineers at Duke University have developed a material that allows them to manipulate light in much the same way that electronics manipulate flowing electrons.

dateAug 01, 2011 in General Physics
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Lasers ID deadly skin cancer better than doctors

High-resolution images from a laser-based tool developed at Duke University could help doctors better diagnose melanoma, the deadliest form of skin cancer, while potentially saving thousands of lives and millions of dollars ...

dateFeb 23, 2011 in Cancer
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Powerful laser pointers create risks

The latest generation of high-powered laser pointers may seem like a fun Christmas gift, but experts caution consumers to weigh the potential harm.

dateNov 22, 2010 in Health
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Doctors see eye hazard in powerful laser pointers

(AP) -- A 15-year-old boy damaged his eyes while playing with a laser pointer he'd bought over the Internet, say doctors who warn that dangerously high-powered versions are easily available online.

dateSep 09, 2010 in Health
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Tying light in knots

(PhysOrg.com) -- The remarkable feat of tying light in knots has been achieved by a team of physicists working at the universities of Bristol, Glasgow and Southampton, UK, reports a paper in Nature Physics this w ...

dateJan 17, 2010 in General Physics
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