Elytra Filament Pavilion / Achim Menges

Countries where <1% of the population belongs to each of the world’s four largest religions (or is unaffiliated)

Such a cool apartment, I like the mini-window between the bedroom and sitting area.

The Ghetto of Venice

Colliding Galaxies in Stephans Quintet : Will either of these galaxies survive? In what might be dubbed as a semi-final round in a galactic elimination tournament, the two spirals of NGC 7318 are colliding. The featured picture was created from images taken by the Hubble Space Telescope. When galaxies crash into each other, many things may happen including gravitational distortion, gas condensing to produce new episodes of star formation, and ultimately the two galaxies combining into one. Since these two galaxies are part of Stephans Quintet, a final round of battling galaxies will likely occur over the next few billion years with the eventual result of many scattered stars and one large galaxy. Quite possibly, the remaining galaxy will not be easily identified with any of its initial galactic components. Stephans Quintet was the first identified galaxy group, lies about 300 million light years away, and is visible through a moderately-sized telescope toward the constellation of the Winged Horse . via NASA

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Photo: Aftermath of a lightning strike on a golf practice green.

Crosson Architects. Hut on Sleds. Whangapoua. New Zealand. photos: Jackie Meiring

A shooting star over Mount Rainier By Tanner Wendell Stewart

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Scientific Women You Haven’t Heard of (Yet): Louise Pearce

Louise Pearce is best known for her work that lead to a cure for sleeping sickness. Pearce traveled to what is now the Democratic Republic of the Congo to test the arsenic based cure, tryparsamide, in cooperation with a hospital in Léopoldville that was coping with an outbreak of sleeping sickness. This trip helped establish parameters for treatment (such as safe and optimum dosages) of sleeping sickness with tryparsamide. Pearce also used rabbit colonies to study syphilis and cancer over generations.  Pearce was lesbian and a feminist and lived with Sara Josephine Baker and Ida A.R. Wylie. Pearce’s curriculum vitae is impressive and lists Standford University, Boston University and Johns Hopkins University as her alma maters.

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Previous Installments:  Lynn Conway, Noella Marcellino, Tu Youyou

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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.

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