58+ min ago  (344+ words) IBM Selectric typewriters have a lot of unique parts that can be tricky to source, but one we didn't think of was the clear acrylic(?) dust covers, that are apparently very hard to find in good shape.... IBM Selectric typewriters…...

5+ day, 17+ hour ago  (197+ words) Elastocaloric materials are a class of materials that exhibit a big change in temperature when exposed to mechanical stress. This could potentially make them useful as solid-state replacement for both vapor-compression refrigeration systems and Peltier coolers. So far one issue…...

1+ week, 1+ day ago  (268+ words) Liquid nitrogen isn't exactly an everyday material, but it's acquired conveniently enough to be used in extreme overclocking experiments, classroom demonstrations, chemistry and physics experiments" Liquid nitrogen isn't exactly an everyday material, but it's acquired conveniently enough to be used…...

3+ week, 1+ day ago  (306+ words) We've always been interested in fluidic logic and, based on [soiboi's] videos, he is too. His latest shows how to use silicone and a vacuum to build a multiplexed dot matrix display. This is a fascinating look at how you…...

1+ mon, 1+ day ago  (277+ words) A New And Strangely Strong Kind Of Plastic'Hackaday As anyone who extrudes plastic noodles knows, the glass transition temperature of a material is a bit misleading; polymers gradually transition between a glass and a liquid across a range of temperatures,…...

1+ mon, 1+ week ago  (215+ words) Thomas Edison is well known for his inventions (even if you don't agree he invented all of them). However, he also occasionally invented things he didn't understand, so they had to be reinvented again... Thomas Edison is well known for…...

1+ mon, 2+ week ago  (252+ words) After having been sent a vacuum fluorescent display (VFD) based clock for a review, [Anthony Francis-Jones] took the opportunity to explain how these types of displays work. Although VFDs are general... After having been sent a vacuum fluorescent display (VFD)…...

3+ mon, 1+ week ago  (427+ words) Closed-cell self-expanding foam (spray foam) is an amazing material that sees common use in construction. But one application that we hadn't heard of before was using it to fill the "read more Closed-cell self-expanding foam (spray foam) is an amazing…...

3+ mon, 2+ week ago  (291+ words) Antihydrogen forms an ideal study subject for deciphering the secrets of fundamental physics due to it being the most simple anti-matter atom. However, keeping it from casually annihilating itself along "read more Antihydrogen forms an ideal study subject for deciphering…...

4+ mon, 3+ day ago  (258+ words) [Guitar Picks made from recycled sheets]Plastic recycling is something that many of us strive to accomplish, but we often get caught up in the many hurdles along the way. [Brothers Make] are experienced in the "read more [Guitar Picks…...