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A network of capillaries 3D-printed using a newly developed technique. (Source: Hayes et al. 2022, Advanced Materials)
USA: New 3D-Printing Approach

How to print a robot from scratch

Imagine a future in which you could 3D-print an entire robot or stretchy, electronic medical device with the press of a button —no tedious hours spent assembling parts by hand. That possibility may be closer than ever thanks to a recent advancement in 3D-printing technology led by engineers at CU Boulder.

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pH-Scale (0-14) (Source: LAB Worldwide, Myles Davis)
Laboratory Technology

pH-Value – What is it and How is it Being Measured?

The term "sour" has something to do with the so-called pH value: pH stands for pondus Hydrogenii, which means "weight of hydrogen", i.e. the concentration of hydrogen ions in a solution. The pH value therefore indicates how acidic (sour) or basic a solution is, with the most commonly measured values ranging from around 0 to 14. How the value is calculated, how its being tested and what it means exactly is explained in this article.

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