TEMPEST FOR ELIZA
“Tempest for Eliza” is a program written by Erik Thiele to demonstrate the RF transmission properties of CRT monitors. The program is capable of transmitting sound over AM frequencies just by the distinct way it drives the monitor. The electromagnetic emissions of CRTs can be a safety and security problem as demonstrated by Van Eck …
QTLEDTEST – software TO assess OLED displays
A few days ago we featured the USBPass, an offline password keeper made with very few components. At the end of our write-up we discussed that [Josh] was already working on another version of his hardware, which involved adding an OLED screen to the platform. To help him pick one he created QtLedTest, a Qt-based tool …
PROTOTYPE SODIUM ION BATTERIES IN 18650 CELLS
French researchers have announced a prototype of an 18650 sodium-ion battery. If you’ve gotten a powerful LED flashlight, a rechargeable battery pack, or a–ahem–stronger than normal LASER pointer, you’ve probably run into 18650 batteries. You often find these inside laptop batteries and –famously– the Tesla electric automobile runs on a few thousand of these cells. …