Mat from UK channel Techmoan loves to dig up obscure old technology and examine it in depth. Here, he checks out an old 1970s tech from 3M and Ricoh which allowed audio to be recorded and played back from sheets of paper which were backed with a magnetic coating.
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Apparel maker Heisel specializes in 3D printed and reflective clothing. One of their coolest products are these reflective socks. It has an integrated stripe of 3M’s Scotchlite retroreflective material. It’s available with a wide or a narrow reflective stripe.