Chlorosulfonation of an imidazole derivative with chlorosulfonic acid.
Why is this a special thing? Chlorosulfonic acid reacts with water explosively forming sulfuric acid and hydrogen chloride. So when I added 200 g of a compound to 500 cm3 of chlorosulfonic acid, a highly exothermic reaction happened and immediately and a highly acidic fog formed in the flask as the reactants contacted each other.
Important note when working with chlorosulfonic acid: NEVER WASH ANYTHING WITH WATER WHAT CONTAINS A RANDOM LIQUID, since if its chlorosulfonic acid, it could blow a highly acidic solution on your labcoat/hands/face. And always pour chlorosulfonic acid and reaction mixtures that contain this chemical on large excess of cracked ice to avoid serious problems.
P.S.: always wear proper PPE.
Painting series by Dragan Ilić features abstracted mark-making using an industrial robot, sometimes carrying and guiding the artist himself:
The artist constantly transposes into the third dimension his decade’s long-running conceptual practice based on the usage of pencils as the basic draftsman’s tool, starting primarily with the media of performance art, installation and sculpture in extended field. Gradually, over the years, his expressive and mechanical compositions have become even more advanced with the development of modules, diverse in shape and sizes, devices designed for the task of mounting and holding his drawing tools, which has led ultimately to the construction of an appropriate drawing machine. Construed for non-artistic purposes, these robots have been reshaped into special draftsmanship implements with which the author is capable of processing his ideas at far greater speed and with considerably greater precision. The metamorphosis of the artistic work is positioned at a point where human and machine activity intersects, resulting in an interaction that is essentially based on the need to transcend the limitations of the human body.
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The Indian Space Research Organisation (ISRO) just sent 20 satellites into orbit with one launch, marking the largest satellite launch in the space agency’s history.
Their previous record was 10 satellites delivered with one mission, and this latest accomplishment takes them a lot closer to the delivery rates of NASA and the Russian Federal Space Agency, solidifying India’s place in the global space market.
Out of the 20 satellites, 17 were commercial, so used by companies to help us do things like get better TV signals or weather forecasts. The main cargo, though, was the ISRO’s 725.5-kilogram (1,599-pound) Cartosat-2 - a satellite used for earth observation much like NASA’s Landsat program.
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Sympathy cards for scientists | @myjetpack
Crosson Architects. Hut on Sleds. Whangapoua. New Zealand. photos: Jackie Meiring
How is the source for this returnofkings, a MRA site?
If men stopped working…the world would continue on.
If women stopped working, then things would get ugly.
Way more adorable than drones
Starting in July, 2016, millions of people will encounter single-minded little autonomous robots in the United Kingdom, Germany, and Switzerland as part of the testing program launched by London-based Starship Technologies in tandem with some major industry partners. This launch is a first-of-its kind fleet of autonomous robots, designed to deliver goods within a two- to three-mile radius of a hub and arrive within 15 to 30 minutes.
The robots drive autonomously but are monitored by humans who can take over control at any time. Launched by two Skype cofounders, Ahti Heinla and Janus Friis, Starship Technologies’ aim is to fundamentally reshape how goods are shipped and delivered, and make local delivery almost free.
Thousands of years of human breeding transformed wild species into the domesticated varieties we enjoy every year. Most of these foods were originally found in the Americas. Some of my favorite details:
The original domesticated carrots were purple. Carrots were bred to be orange by Dutch farmers in the 17th century, and then used as a political symbol of the ruling family - the House of Orange.
The ancestors of pumpkins were mainly eaten by mastodons and giant sloths - they were too bitter for smaller animals to stomach.
Turkeys were bred to have white plumage so their skin would be more uniform in color.
Happy Thanksgiving!!
A shooting star over Mount Rainier By Tanner Wendell Stewart
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Wow.
The move to effectively kill the Office of Congressional Ethics was not made public until late Monday, when Representative Robert W. Goodlatte, Republican of Virginia and chairman of the House Judiciary Committee, announced that the House Republican Conference had approved the change. There was no advance notice or debate on the measure.
The surprising vote came on the eve of the start of a new session of Congress, where emboldened Republicans are ready to push an ambitious agenda on everything from health care to infrastructure, issues that will be the subject of intense lobbying from corporate interests. The House Republicans’ move would take away both power and independence from an investigative body, and give lawmakers more control over internal inquiries.
It also came on the eve of a historic shift in power in Washington, where Republicans control both houses of Congress and where a wealthy businessman with myriad potential conflicts of interest is preparing to move into the White House.
[…]
“This is huge,” said Mr. Morgan, who now defends lawmakers targeted in ethics investigations. “It effectively allows the committee to shut down any independent investigation into member misconduct.“
Gaming, Science, History, Feminism, and all other manners of geekery. Also a lot of dance
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