At 07:48 PM 3/24/98 -0800, Richard wrote: <snip> (...) Aluminum foil will stop everything bigger than x-rays (and that includes IR). A CD looks highly reflective, but it probably refracts and reflects a lot of energy, too. I realize they don't send (...) (27 years ago, 25-Mar-98, to lugnet.robotics.handyboard)
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