Fulfilling requests, this post is a comparison between silicon and germanium, as base materials for semiconductors.
Antenna for 6G networks
The wireless communication technology 6G is still in development. A recently built antenna prototype can be used on these networks.
Optocoupler with phototransistor
The optocoupler electrically insulates a circuit’s input and output. The operation and some projects are shown in this post.
The lunar probe SLIM survives
Although it didn’t make a perfect landing, the lunar module SLIM survived for two lunar nights, equivalent to 28 terrestrial days.
Wilson chamber: what is it and how does it work?
The Wilson chamber or cloud chamber is a particle detector, which contributed to important particle physics discoveries.
DHT11 and DHT22, temperature and humidity sensors
DHT11 and DHT22 are sensors manufactured by Aosong, with a digital output for measurements. Here, it’s shown how to use it on Arduino.
Snail robot moves by mucus
A snail robot that produces mucus to move, can be used in research for robots that move in mucous cavities.
Darlington and Sziklai pairs
The Darlington and Sziklai pairs are settings with BJT transistors. The comparison between both and some circuits are shown in this post.
The DVD that can store 1 million movies
A new material and new recording methods, allow a disk with a DVD size to store a huge quantity of memory.
Digital voltmeter ammeter: how to use it?
In this post, are shown how it works and how to use the digital voltmeter ammeter. The component I bought is the DE-2645-02.