Gorgeous Photography of The Elements

Bismuth (Image: fluor_doublet/R. Tanaka/Flickr ) We all know the periodic table of the elements from high school chemistry, but have you ever wondered what the actual chemical elements look like? Japanese chemist and photographer R. Tanaka is on a mission to photograph the world’s most photogenic elements and we dare say he succeeded with flying colors. Check out his website and Flickr page to see more wonderful images of the elements. Osmium Palladium Monoclinic sulfur Oxidized arsenic Gold crystal Lead Platinum Ruthenium Tellurium Oxidized vanadium View more over at R. Tanaka’s Flickr set: The Elements – via Visual News

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Gorgeous Photography of The Elements

7 Weird and Wonderful Facts About the Wizard of Oz Books

The new movie Oz the Great and Powerful opens today in theaters nationwide. The backstory of the wizard is loosely based on the L. Frank Baum book The Wonderful Wizard of Oz . Baum went on to write 14 more books about Oz, because the public kept demanding more. An interesting fact I didn’t know -one of his granddaughters was named after an Oz character!   Baum had a granddaughter named “Ozma,” and his 11th Oz book, The Lost Princess of Oz (published 1917), was dedicated to her shortly after her birth. The story begins with the disappearance of Princess Ozma, the ruler of Oz.    Read more interesting facts about Baumm’s Oz books and see artwork from all of them at Tres Sugar. Link   -via Holy Kaw!

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7 Weird and Wonderful Facts About the Wizard of Oz Books

Circular Beam of Electrons

Beam of electrons moving in a circle, due to the presence of a magnetic field. Purple light is emitted along the electron path, due to the electrons colliding with gas molecules in the bulb. (Photo: Marcin Bialek ) Oh, how I love you guys. In our recent post A Fiery Dance on the Sun , Neatoramanaut PlasmaGryphon kindly took the time to explain to us the physics behind solar flares. In the explanation , there was a link to Wikipedia article on Lorentz force , where I found this fascinating image of a circular beam of electrons in a Teltron tube . Neat, huh? ( Thanks PlasmaGryphon! )

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Circular Beam of Electrons

Bees Can See the Electric Field of Flowers

Flowers are pretty and colorful to you and me, but to a bee, they’re downright electrifying. You see, bees can sense the electric field that surrounds a flower: Dominic Clarke and Heather Whitney from the University of Bristol have shown that bumblebees can sense the electric field that surrounds a flower. They can even learn to distinguish between fields produced by different floral shapes, or use them to work out whether a flower has been recently visited by other bees. Flowers aren’t just visual spectacles and smelly beacons. They’re also electric billboards. Learn how a flower’s electric field is actually also useful for bees as it tells them whether other bees have visited it before. Ed Yong of Not Exactly Rocket Science explains: Link

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Bees Can See the Electric Field of Flowers

The House with a Pop-up Roof

It’s like a giant’s lunchbox! This house, which is named Shadowboxx, is in the San Juan Islands in the state of Washington. Olson Kundig Architects designed the 16 by 20 foot roof over the bathhouse to open and close with the push of a button. Link -via Dornob

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The House with a Pop-up Roof

Medieval Cat Paw Prints

Does your cat walk all over your desk? It’s’ nothing new, cats have been walking all over humans since, like, forever as this photo from Emir O. Filipovic of the University of Sarajevo’s History Department shows. Emir was working on a 15th century manuscript when he ran across this medieval cat paw prints: Link – via The Weasel King

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Medieval Cat Paw Prints

Clever Students Use Game Theory to Get Perfect Scores on an Exam

Dr. Peter Fröhlich of Johns Hopkins University grades exams so that the highest scoring exam receives a 100% grade and all others fall below on a curve. It wasn’t a Kobayashi Maru scenario , but his exams are hard. Fröhlich’s students devised a cunning plan to all get A grades. It involved boycotting the exam: Since he started teaching at Johns Hopkins University in 2005, Professor Peter Fröhlich has maintained a grading curve in which each class’s highest grade on the final counts as an A, with all other scores adjusted accordingly. So if a midterm is worth 40 points, and the highest actual score is 36 points, “that person gets 100 percent and everybody else gets a percentage relative to it,” said Fröhlich. This approach, Fröhlich said, is the “most predictable and consistent way” of comparing students’ work to their peers’, and it worked well. At least it did until the end of the fall term at Hopkins, that is. As the semester ended in December, students in Fröhlich’s “Intermediate Programming”, “Computer System Fundamentals,” and “Introduction to Programming for Scientists and Engineers” classes decided to test the limits of the policy, and collectively planned to boycott the final. Because they all did, a zero was the highest score in each of the three classes, which, by the rules of Fröhlich’s curve, meant every student received an A. Dr. Fröhlich abided by his grading policy and gave all students A grades, as well as congratulating them on their cooperative spirit: Fröhlich took a surprisingly philosophical view of his students’ machinations, crediting their collaborative spirit. “The students learned that by coming together, they can achieve something that individually they could never have done,” he said via e-mail. “At a school that is known (perhaps unjustly) for competitiveness I didn’t expect that reaching such an agreement was possible. Link -via The Volokh Conspiracy  | Image: Paramount Pictures

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Clever Students Use Game Theory to Get Perfect Scores on an Exam

Hotel Het Arresthuis: Jail Turned Into Luxury Hotel

Most hotels have bars, but you’re probably not thinking of these ones on the window. The Hotel Het Arresthuis in the Netherlands was actually a jail that was converted into a luxury hotel. Now this is one jailhouse we don’t mind checking into! Take a look.

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Hotel Het Arresthuis: Jail Turned Into Luxury Hotel

Florida Man: the World’s Worst Superhero

There’s Batman, Spider-Man, Superman, and of course, Florida Man. Florida Man is in the news constantly, with headlines enshrined in a Twitter feed dedicated to “the world’s worst superhero.” Link   -via Metafilter

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Florida Man: the World’s Worst Superhero