5+ day, 17+ hour ago   (32+ words) [lcamtuf] has an in-depth look at the concept of negative resistance that goes somewhat further than one might expect. Normally, as voltage across a resistance increases so too does the current. Negat......

1+ week, 13+ hour ago   (36+ words) Generally, we do not look at the gentle patter of raindrops on a surface with much concern, but according to a study by [Zhongyuan Ni] et al. in Nature, we should probably regard these droplets with......

2+ week, 39+ min ago   (38+ words) If you tear into old TVs or recording equipment, you may see shields made from some exotic-looking metal. Old timers will tell you it's called mu metal, and its purpose is to -- sort of -- shield thin......

2+ week, 13+ hour ago   (147+ words) Hackaday The big news today is, of course, the successful launch and deployment of NASA’s Nancy Grace Roman Space Telescope earlier this morning. The space agency’s latest observatory lifted off at 7:26 AM Eastern from Launch Complex 39A at Kennedy Space Center…...

2+ week, 5+ day ago   (38+ words) Fluid simulations are one of the "killer apps" of high-performance computing, but if you can't afford the performance, they can take a depressingly long time to run. Depending on your use case, as lon......

3+ week, 3+ day ago   (32+ words) An interesting type of superconductors available to us today are the ones that achieve this property at room temperature, with only the small snag that they require crushing pressures that would rende......

4+ week, 2+ day ago   (335+ words) Machine Learning COFFIES “Hears” Sunspots Before We Can See Them Hackaday In this age of neural net “AI”, even the most skeptical of Butlerians have to agree that these machine learning models can be very, very good at pattern…...