The first two of the three electromagnetic pulses (EMPs) emitted during a nuclear explosion are by far the briefest. The first pulse has a duration of nanoseconds; the second lasts only microseconds. Both, especially the first, can permanently damage solid-state electronics. Electronic devices can be protected from an EMP by storing them in a Faraday shield, […]
Most of us have experienced power outages. While brief interruptions are unpleasant, lengthy outages that can occur after severe weather, forest fires, and earthquakes can cause loss of food stored in refrigerators and freezers unless a backup generator is available. While water outages are less common than power outages, drinkable water becomes much more important than […]
The latest Adafruit Metro is the M7 with AirLift. The idea behind this board is to take a very powerful Arm Cortex-M7 microcontroller, put it in the Arduino Uno’s form factor, and then squeeze in a Wi-Fi subsystem along the edge. Adafruit then adds all the extras found on their recent boards. It’s a very […]
Over the weekend, Creality announced a whole list of new products that will be hitting shelves soon. The most notable to me is the K1 3d printer. Many of us in the 3D printing community were expecting something like this to pop up. It appears to be a direct competitor to some of the recent […]
Manufacturer: HTVront Price: $251 URL: https://bit.ly/3lAyqgI Features First Use There is basically no setup with this machine. You unbox it and it is ready to go. It has a few presets that might fit the jobs you need, but you can always adjust things manually. A normal “clam shell” heat press opens up, you guessed […]
Isaac Newton developed calculus back in the mid-1600s as a tool to explain physical phenomena, in particular the motions of planets. As it turned out, it was also a way to encode how things move and change more generally, from economies to populations of rabbits and foxes. When Newton did it, his reasoning was mostly geometrical, […]
Stefan from CNC Kitchen is tackling a topic that is very important right now. With 3d printers boasting faster and faster print speed, is part strength effected? In short, Stefan found that if you use the default fast speeds and the default nozzle on the Bambu, your prints are weaker. Of course he doesn’t stop […]
