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By 1917, they sold chemistry sets, which they produced through World War II, in spite of restrictions on materials. Robert Treat Johnson, noting the number of chemistry students at Yale whose interest in the science began with a chemistry set, argued the production of chemistry sets was a "patriotic duty." [5]
Braun had been making videos, mainly tutorials, for fun since his teenage years, creating a YouTube channel on March 10, 2014. His first video was uploaded on March 24, 2014, and many of his early videos were recordings of his projects as a laboratory technician or at his parents' garage, with them later being filmed at his industrial-grade laboratory. [3]
He started his YouTube channel to upload footage to send to authorities as evidence against scammers. [ 4 ] He has since carried out investigations into various scams, in which he infiltrates computer networks run by scammers who claim to be technical support experts [ 1 ] or pose as US IRS agents and use remote desktop software or social ...
Gilbert cloud chamber, assembled An alternative view of kit contents. The lab contained a cloud chamber allowing the viewer to watch alpha particles traveling at 12,000 miles per second (19,000,000 m/s), a spinthariscope showing the results of radioactive disintegration on a fluorescent screen, and an electroscope measuring the radioactivity of different substances in the set.
The YouTube channel is now one of the most popular chemistry related channels on all of YouTube. [7] The producers of the videos have received praise from Nobel Laureates, chemistry professors, and the general public, says Professor Poliakoff. [5] Chemistry Nobel Laureate Roald Hoffmann has even offered his praise of the videos, stating they ...
If you're wondering whether the kittens actually do any yoga, the answer is no. Instead, they're free to roam around or snooze in their cat beds while you practice your poses. You can give them a ...
This food storage container set comes in a set of three — and includes a large, medium and small container. The small container is the perfect size for storing a pint of blueberries, while the ...
Throughout much of the 20th century, amateur chemistry was an unexceptional hobby, with high-quality chemistry sets readily available, and laboratory suppliers freely selling to hobbyists. For example, Linus Pauling had no difficulty in procuring potassium cyanide at the age of eleven. [ 2 ]