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Informal Science Education Network <[log in to unmask]>
Date:
Thu, 21 Mar 2013 08:44:21 -0700
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Informal Science Education Network <[log in to unmask]>
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"Glenn A. Walsh" <[log in to unmask]>
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To: Dome-L <[log in to unmask]>, Museum discussion list <[log in to unmask]>, Public Observatory Mailing List <[log in to unmask]>, [log in to unmask], [log in to unmask], Astronomy Club of India <[log in to unmask]>, Astronomy Online <[log in to unmask]>, [log in to unmask], [log in to unmask], [log in to unmask], [log in to unmask] cc: Glenn Walsh <[log in to unmask]>
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ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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Laser Pointer Hazards Measured by NIST Scientists

Using a low-cost apparatus designed to quickly and accurately measure the properties of handheld laser devices, National Institute of Standards and Technology (NIST) researchers tested 122 laser pointers and found that nearly 90% of green pointers and about 44% of red pointers tested were out of compliance with federal safety regulations. 

http://spacewatchtower.blogspot.com/2013/03/laser-pointer-hazards-measured-by-nist.html

gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://friendsofthezeiss.org >
Electronic Mail - < [log in to unmask] >
SpaceWatchtower Blog: < http://spacewatchtower.blogspot.com/ >

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