2+ hour, 24+ min ago  (618+ words) Sometimes, a major discovery is exactly what you were hoping not to find. That's the case with a team at Penn State who seem to have recently closed the door on any new physics stemming from a longsta. .....

4+ day, 1+ hour ago  (424+ words) Having molten aluminium interact with atmospheric water forms a source of hydrogen which can be rather problematic if you're trying to cast aluminium parts. As the molten metal cools down, the dissolv. .. Having molten aluminium interact with atmospheric water forms…...

5+ mon, 3+ week ago  (1851+ words) Yet even after correcting for that, the internal resistance of these Na+ batteries appears to be significantly higher, giving a round trip efficiency of 60 " 92%, which is a far cry from the 95% to 99% of LFP. Until things change here, [Will] doesn't…...

1+ mon, 1+ week ago  (555+ words) Hackaday Some FDM filaments are pretty brittle even if properly dried and stored, especially those which contain carbon fiber (CF) or similar additives like glass fiber (GF) This poses a problem in that these filaments can snap even within the…...

1+ mon, 1+ week ago  (543+ words) Many substances display crystallization, allowing them to keep adding to a basic shape to reach pretty humongous proportions. Although we usually tend to think of pretty stones that get fashioned into. .....

1+ mon, 1+ week ago  (596+ words) Recycling plastic at home using 3 D printed molds is relatively accessible these days, but if you do not wish to invest a lot of money into specialized equipment, what's the most minimal setup that you. .. Recycling plastic at home using…...

1+ mon, 2+ week 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…...

1+ mon, 2+ week 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+ mon, 3+ week 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…...

2+ mon, 1+ week 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…...