Collaborate Disseminate
As the world becomes more and more digital, there are still a few holdouts from the analog world we’ve left behind. Vinyl records are making quite the comeback, and film …read more Continue reading Digital to Analog in the Darkroom
Researchers exploit a SQLite memory corruption issue outside of a browser. Continue reading DEF CON 2019: New Class of SQLite Exploits Open Door to iPhone Hack
Switches seem to be the simplest of electrical components – just two pieces of metal that can be positioned to either touch each other or not. As such it would seem that it shouldn’t matter whether a switch is used for AC or DC. While that’s an easy and understandable assumption, it can also be a dangerous one, as this demo of AC and DC switching dramatically reveals.
Using a very simple test setup, consisting of an electric heater for a load, a variac to control the voltage, and a homemade switch, [John Ward] walks us through the details of …read more