Fingerpori is a Finnish comic strip written and drawn by Pertti Jarla. It started in Helsingin Sanomat in February 2007, and is comprehensively distributed in major provincial newspapers. The humour in Fingerpori is largely verbal and is often based on (mostly untranslatable) wordplay and puns. The strips often have an absurdist element. But some Fingerpori →
Research team at City University of Hong Kong (CityU) has discovered a new type of sound wave: The airborne sound wave vibrates transversely and carries both spin and orbital angular momentum like light does. The findings shattered scientists’ previous beliefs about the sound wave. “While the airborne sound is a longitudinal wave in usual cases, →
STEGO KTO 011 is electromechanical thermostat designed for controlling electrical heating. The thermostat has one NC (normally closed) contact that normally conducts, but opens when temperature exceed the set temperature. The temperature control range is 32-140F. The electrical NC contact is rated for AC120V 16(2)A and AC250V 10(2)A. Let’s open the device. The temperature controlling →
Here is teardown of Stego FZK 011 thermostat. Thar is an electronechanical thermostat that can control heating resistor and/or cooling fan. The thermostat is based on bimetal strip that bends based on temperature. To get sharp transition and some hysteresis there is also magnet near silver calibration adjustment screw and electrical contacts. Components on board →
This posting is here to collect cyber security news in December 2021. I post links to security vulnerability news to comments of this article. You are also free to post related links to comments. →