April 11, 1899: Chemist Percy Julian Is Born
On this day in 1899, chemist Percy Julian (today’s Google Doodle) was born. Julian held more than 100 chemical patents, wrote scores of papers on his work, and received dozens of awards and honorary degrees.
The grandson of Alabama slaves, Percy Julian met with every possible barrier in a deeply segregated America. He was a man of genius, devotion, and determination. As a black man he was also an outsider, fighting to make a place for himself in a profession and country divided by bigotry—a man who would eventually find freedom in the laboratory.
Watch NOVA's “Forgotten Genius,” the story of how African American Percy Julian defied the odds to become a famous chemist.
PEP (Person of Exceptional Prominence) Spot Light: John Coltrane (September 23, 1926 – July 17, 1967)
Legendary jazz performer and inductee to the Jazz Hall of Fame, John Coltrane is one of the most dominant figures that has influenced generations of jazz musicians. Prior to his association with musical greats like Dizzy Gillespie, Johnny Hodges, and Earl Bostic, John Coltrane entered military service in 1945 and played in the Navy jazz band while stationed in Hawaii.
When Coltrane entered military service, all personnel were required to have a chest x-ray as part of their induction requirements. Within John Coltrane’s record, one such x-ray exists. As the reformatting staff of the Preservation Programs at St. Louis scanned his military record for public use, his x-ray was scanned also. There are several preservation reasons why x-rays are scanned. First, the x-ray is part of Coltrane’s file, and thus an integral part of his historical record. Secondly, providing a scanned image eliminates the need for a user to wear clean gloves so no oils from their hands would transfer onto the silver emulsion of the x-ray. Thirdly, the x-ray base is cellulose acetate film (a.k.a Safety Film) which decomposes over time letting off gases that smell like vinegar, hence the commonly used term “vinegar syndrome”. Vinegar Syndrome occurs when acetic acid is released from the acetate based film leading to the vinegar smell. This deterioration makes the plastic film base brittle, buckle, shrink, and liquefy. Keeping the film in a controlled environment helps reduce the continuation of the base’s degradation. Lastly, the x-ray can be scratched easily if not handled appropriately.
On occasion, the x-rays are digitally enhanced so the image is clearer, and in doing so, helps the researcher and improves public access. These documents and x-rays are placed on DVDs so researchers can access exact replicas and prevent damage to the original document.
This pi may be old, but it’s still delicious.
Gah, I love vintage Coronet Instructional Films. You can watch the whole Coronet archive here, for free!
Happy OKKULT Pi Day
EXCERPTS >|< Meaning Of Pi (1949)
A series of Animated GIFs excerpted from Meaning of Pi (1949). The video Explains how pi denotes the ratio of a circle to its diameter, shows the use of circles in art, industry and commerce, outlines a procedure by which the numerical value of pi can be checked and reviewed, and describes the discovery and importance of pi.
We invite you to watch the full video HERE
Excerpts by OKKULT Motion Pictures: a collection of GIFs excerpted from open source/unknown/rare/controversial moving images.
A digital curation project for the diffusion of open knowledge.
All the water on Europa compared to all the water on Earth.
"The annals of history are filled with anecdotes of musical nuns behaving badly: cross-dressing to attend the opera, burning down convents, and, worse, making money from lavish musical performances. But the moral panic over singing sisters stemmed from idle gossip that, behind shrouded by the walls of the convent, nuns engaged in some downright dirty behavior. If popular art was any indication (see above), then the brides of Christ weren’t nearly as virginal as they claimed. In between Satanic singing, they did what any woman with time to kill would: they harvested penises and hooked up with monks. The link between the lurid nature of song and licentiousness was unambiguous”
Superficial muscles of the thorax and back
While all muscles in a region are affected by a workout, when anaerobic workouts are undertaken, the superficial muscles are the ones that form the majority of the bulk that you see in hardcore athletes and bodybuilders.
There are deep “flat” muscles beneath the superficial layers in these regions, and below and lateral to those, there are the “long” muscles. These are all skeletal muscles - voluntary and striated. Surrounding the muscles is connective tissue, including the linea alba (the dividing line between the two halves of the abdomen), the fascia, and the aponeuroses. All of these consist of dense, fibrous connective tissue, and protect the body from intrusion, as well as protecting the muscles from each other, as they flex and relax in different directions.
Atlas and Text-Book of Human Anatomy. Dr. Johannes Sobotta, 1914
Oh, amazing world: The wing markings of the G. tridens fruit fly, known as a “3-in-one insect,” mimic ants in order to protect the fly from predators.
A Modern-Day Hanging Gardens Of Babylon
The Parkroyal Hotel on Pickering is a contemporary interpretation of Babylonian hanging gardens, via Southeast Asia.
Singapore prides itself on its green-minded policies. With a well-connected public transportation network, robust water collection and treatment infrastructure, and a promise to reduce CO2 emissions by 30% in the next two decades, the island city-state is pioneering sustainable development in Southeast Asia and beyond. There’s more than just tourism sloganeering, it seems, to Singapore’s claim to being a “city in the garden.”
These green ambitions find stunning architectural expression in the solar-powered Parkroyal Hotel on Pickering, a tower complex cut through by a wild patch of tropical forest.”