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From the skin track to the chairlift to the bike park, these glasses are one-size-fits-most.
We report an increase of the superfilamentation length of a focused terawatt laser beam using a multifocal phase mask. Optimized superfilaments extend the lengt ...
Sun safety for the entire family Everybody needs some sun exposure to produce vitamin D (which helps calcium absorption for stronger and healthier bones). But unprotected exposure to the sun's ...
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