Reading time: 3 minute An electrochemical transistor made of balsa wood opens up the possibility of embedding sensors and other electronic devices in plants, which could help agriculture and forest management.
Categories: General knowledge
The category deals with general culture articles in the technical field and not only.
How robust are USB Type-C ports? | My experience with the Huawei P20
Reading time: 4 minute The article presents information about the robustness of USB Type-C ports on Huawei phones. It also shows instructions for changing the PCB with the charging port and headphone jack on Huawei P20 Lite phones.
Dr. Phys. Eugen Pavel, Inventor of Hyper CD-ROM (Petabyte Optical Disc)
Reading time: 3 minute Dr. Phys. Eugen Pavel, from the Institute of Atomic Physics in Magurele, made a CD (Compact Disk), made of glass, with a storage capacity 15000 times higher compared to an ordinary one. In November 1999, his invention was awarded the gold medal at the "Brussels Europa" World Invention Fair. In the same year, the author wanted at any cost the serial production of this CD in Romania.
Top 10 resistors for harsh environments
Reading time: 8 minute The article presents the top 10 types of resistors that offer high reliability and stability or high temperature performance for a wide range of applications. These resistors are designed for harsh environments, including automotive and industrial applications.
What are supercapacitors and where are they used?
Reading time: 2 minute A supercapacitor is also known as a two-layer ultracapacitor or electrolytic capacitor. Supercapacitors consist of two electrodes, an electrolyte, a separating membrane, and their performance differs depending on the characteristics of the materials used.
Qualitative levels of capacitor manufacturers
Reading time: 3 minute The article presents in a structure classified by quality levels, types of capacitors used in consumer power sources (PC, TV, appliances, etc.). The purpose of this article is to provide detailed information about the most important part of an electronic equipment, its power supply unit.
Pivetta Opera Only - Perhaps the most expensive audio amplifier in the world
Reading time: 2 minute With a height of over 2 m, a weight of 1500 kg and an impressive design, it looks more like a futuristic teleportation device than a power amplifier. Its beauty is matched only by specifications. In the construction of this applicator, some more special materials were used, such as: aeronautical quality aluminum and gold.
Justin Capra and the flying backpack later used by NASA
Reading time: 3 minute A proficient and visionary inventor, the creator of the flying backpack, an idea taken over by NASA for the intercapsular movements of cosmonauts, and of the car that consumes 0,5 liters per kilometer, Justin Capra tried to break down barriers and mentalities.
Bletchley Park - UK Cryptanalysis in WWII
Reading time: 3 minute During World War II, Bletchley Park was the headquarters of the UK's leading cryptanalysis organization. The codes and figures of several Axis states were deciphered here, the most important being the German Enigma and Lorenz cars, owned by the Government Code and Cypher School (GC&CS), which regularly entered the Axis Powers' secret communications.
BC107, BC108 and BC109 - The beginnings of world production
Reading time: 4 minute The BC107 family, 108, 109 in the TO-18 metal capsule, has been produced worldwide since 1965 by Philips, Siemens, AEG-Telefunken, SESCOSEM, Texas Instruments, Motorola, Fairchild, SGS Thomson and IPRS Baneasa. After 1975, similar and equivalent transistors were manufactured in plastic capsules, at a cost price 20-40% lower.