A battery can be regarded as an ideal voltage source in series with an impedance, which is called internal resistance. When the battery works, the voltage output is lower than the open-circuit voltage (abbreviated as OCV). The difference is the voltage drop caused by the internal resistance. Internal resistance represents the battery’s limiting factor to →
There are applications where measurement of low resistances are needed. Measuring low resistance helps identify resistance elements that have increased above acceptable values. How you measure low resistances below one ohms? Most multimeters aren’t accurate below 1 ohm. Occasionally, you’ll need to measure electronic parts with very low resistances, such as wires, switches, current-sense resistors, →
I asked SUNO AI to generate cyber-security metal music. It produced those. Firewall Fury https://suno.com/song/337e5924-aabf-4286-a74d-2e793f20d236 Firewall Fury https://suno.com/song/a43e82ed-fcf6-4404-9481-a55a032f8ec8 metalcore intense relentless [Verse] Bytes and codes collide Digital wasteland Intruders seek to harm Defensive stand! [Verse 2] Viruses unleashed Malware on the prowl Encrypted wrath Hear our scowls! [Chorus] Firewall fury In the cyber night Data →
Scissors for electricians PROSKIT DK-2047N is a multi-function electrical cable cutting and stripping scissors for electrician. DK-2047N is originally designed for telephone and electrical maintenance. DK-2047N Electrician’s Scissors has total length of 145mm and cut length of 47 mm. It has comfortable and sturdy plastic handle. The price in different sources is around 10-13 Euros. →
I have Hung Chang HC-F100L multifunction counter that I bought few decades ago. I planned to do a teardown post of it some day, but someone else did it first. Korean Multifunction Counter Teardown https://hackaday.com/2024/07/07/korean-multifunction-counter-teardown/ [Thomas Scherrer] likes to tear down old test equipment, and often, we remember the devices he opens up or — →
A fiber-optic cable, also known as an optical-fiber cable, is a cable that is one or more optical fibers that are used to carry light. The optical fiber elements (typically made of glass) are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable is used. →
This posting is here to collect cyber security news in July 2024. I post links to security vulnerability news to comments of this article. You are also free to post related links to comments. →
Gives hot-wire a whole different meaning Source: https://www.facebook.com/share/p/GaGBsVVgdbYLfRW8/ It used to be a cable. Now it’s modern art. That’s why it is recommended to always fully unspool/uncoil power cables before plugging in. It is a good idea to never leave cable on the drum when doing events.. You’d be surprised how many people don’t realise →
Useless Use of Cat Award https://porkmail.org/era/unix/award Contents: Useless Use of cat Useless Use of kill -9 Useless Use of echo Useless Use of ls * Useless Use of wc -l Useless Use of grep | awk Useless Use of Backticks Useless Use of test →
The flickering of the LED light bulbs can be a problem for some people and also when making video/film. Some LED light bulbs flicker noticeably when new, some do not flicker noticeably. In home lighting applications, flickering LED lights can be particularly bothersome in areas such as the living room or bedroom where people often →