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How Rudolf Diesel's engine changed the world - BBC News
Part of this series: 50 Things That Made the Modern Economy
science  history  chemistry  car 
yesterday by cradock
How Gore-Tex Went From Accident to Outdoor Essential
Before Gore-Tex was invented, there were plenty of materials to protect you from harsh weather, but they all came with trade-offs. Waxed cotton was heavy. Vinyl could drown you in your own sweat. Seal intestine (gut parka!) was favored by the Inuit but hardly made sense for mass production. That said, Bob Gore wasn’t attempting to improve outerwear when he created Gore-Tex. Working in his father’s Teflon factory in the late 1960s, he was simply trying to make more efficient use of the plastic by stretching it. He accidentally found that yanking Teflon filled it with air pockets. And not only that: The micropores that appeared in his “expanded polytetrafluoro­ethylene” were 700 times larger than a water vapor molecule but 20,000 times smaller than a droplet. Gore reasoned that if you made a fabric out of ePTFE, you could block out rain while still venting steamy perspiration—with wind protection as a bonus. The first Gore-Tex jacket was manufactured in 1977 by a small Seattle company called Early Winters and marketed as “possibly the most versatile piece of clothing you’ll ever wear.” Since then, ePTFE has proven much more versatile than that and is now found in everything from space suits to heart patches. It’s certainly better suited to those modern applications than seal intestine ever could be.
innovation  chemistry  ++--- 
4 days ago by jonippolito
Nanosurfactants create droplet-sized reaction flasks | January 15, 2018 Issue - Vol. 96 Issue 3 | Chemical & Engineering News
By adding a suit of nanoparticle surfactant armor to otherwise dull droplets, chemists in South Korea have created tiny reaction flasks that they can maneuver and modify using magnets, lasers, and electrical fields. The droplets offer a new way to do microscale chemical reactions that avoids some of the pitfalls associated with microfluidics, such as difficulty mixing solutions and limitations on the types of solvents that can be used.
chemistry  droplet  nanoscience 
6 days ago by madamim
Ethyl group - Wikipedia
The name of the group is derived from the Aether, the first-born Greek elemental god of air (and at that time a general term for any highly volatile compound) and "hyle", referring to "stuff". The name "ethyl" was coined in 1835 by the Swedish chemist Jöns Jacob Berzelius.

There's something funny with me or with the auto industry when it's easier for me to figure out which antifreeze to choose by comparing the chemical compositions of different brands. Internal combustion engines really are going to be distant history soon.
broncs  chemistry 
10 days ago by mozzarella

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