Gizmodo 
Jul 8, 2009 11:00 PM
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Remember the novelty invisible ink you could buy for like a dollar and spray at your sister? She'd bludgeon you bloody before realizing the ink disappeared. (The blood tended to stain.) Well--in a story deemed too sciency for our regular posting--researchers have contrived of a new invisible ink. Made of coated gold nanoparticles, the "ink" has a special talent: It can be seen only when you shine a light at it. That's some serious spygear, isn't it? [New Scientist]
read more: #remainders, #gizmodoremainders
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