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All about electronics and circuit design

LED flashlight battery holder resistance

I had some broked LED flashlights and I thought of using components from them. Especially the compact battery holder that takes three AAA batteries looks useful in other small projects. Those worked OK when lightly loaded. But when I started taking current for a small motor, I could not get acceptable power out of them.

RAMBleed vulnerability

A team of researchers representing several universities has disclosed the details a new type of side-channel attack: Researchers show with RAMBleed that it’s possible to use Rowhammer-style side-channel attacks to read protected memory. RAMBleed takes Rowhammer in a new direction. Rather than using bit flips to alter sensitive data, the new technique exploits the hardware

The world’s first winter tyre with retractable studs / Nokian Tyres

https://www.nokiantyres.com/innovation/research-and-development/the-world-s-first-winter-tyre-with-retractable-studs/ This looks as an interesting concept: Nokian Tyres presents the world’s first non-studded winter tyre with studs in connection with the 80th anniversary of the winter tyre. With a press of a button, the driver can bring out the studs to improve the grip of the tyre. When the studs are not needed, they

Circuit Breaker: Construction, Working, Types & Uses

MCB (Miniature Circuit Breaker), Construction, Working, Types & Uses https://www.electricaltechnology.org/2016/02/mcb-miniature-circuit-breaker-types-construction-working-uses.html MCBs are used primarily as an alternative to the fuse switch in most of the circuits. A wide variety of MCBs have been in use nowadays in all areas of domestic, commercial and industrial applications as a reliable means of protection. Air Circuit Breaker (ACB)

Cyber security news in June 2019

This posting is here to collect cyber security news in June 2019. I post links to security vulnerability news to comments of this article. If you are interested in cyber security trends, read my Cyber security trends 2019 posting. You are also free to post related links.  

Friday Art: The Magic Of Japan Streets At Night

Photographer Jun Yamamoto Captures The Magic Of Japan Streets At Night https://designyoutrust.com/2019/05/photographer-jun-yamamoto-captures-the-magic-of-japan-streets-at-night/ Vibrant night urban shots by Jun Yamamoto a.k.a. jungraphy, a talented self-taught photographer, and retoucher currently based in Tokyo, Japan.