The “Archimedean screw,” invented by the ancient mathematician and engineer Archimedes of Syracuse (c. 287–212 BC) and named after him, was used for irrigating fields and can be regarded as …
Read more »Chemical technology in action
A Guide to Screws and Thread Types
Screws, Nuts, and Threads – a Brief Overview What do a toothpaste tube, a jar of jam, a water bottle, and a light bulb have in common? A screw connection. …
Read more »Acids and Bases in Everyday Life
How Hydroxide and Hydronium Ions Ensure Cleanliness in the Bathroom Hygiene plays a more important role than ever in the current situation. Regular hand washing, social distancing, respiratory hygiene and …
Read more »The Measurement Uncertainty in Temperature Measurements
How Hot Is It Really? The air that surrounds us everywhere affects our comfort and well-being through its temperature. If it is too hot or too cold, we feel uncomfortable. …
Read more »Shore Hardness A and D
Two Key Characteristics for Hoses and Hose Technology Who doesn’t use them somewhere — hoses — the versatile helpers used in countless applications. They safely transport gases, liquids, and even …
Read more »Gas-Tight Tubing for Laboratory and Pilot Plant Use
Technical gases reach end users via various routes. Natural gas for energy supply or process gases for the chemical industry are highly compressed and transported over long distances through pipelines …
Read more »HPLC – A Method for Biochemical Research
HPLC stands for High Performance Liquid Chromatography. This technique is used for both preparative and analytical separations. In biochemical research, HPLC is especially useful for preparing and analyzing substances with …
Read more »Gel Permeation Chromatography in Polymer Analysis
Anyone working with polymers and their properties should know something about what is known as the molecular weight distribution. What it is, how it can be determined using gel permeation …
Read more »The Luer/Lock System for Connecting Micro Hoses
Anyone who has spent a longer period of time being treated in a hospital has most likely come into contact with the Luer/Lock system – for example during an infusion …
Read more »Heat Shrink Tubing – How It Works and Where It’s Used
If you need to insulate a damaged cable or install new wiring, it’s always a good idea to have a few heat shrink tubes on hand. Thanks to their adaptable …
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