Optical Stern-Gerlach with a Ferrofluid Cell

submitted by: SirZerp

Using a camera adjacent to an incandescent lamp with a polarizing filter that is supplying light at a 45 degree incidence angle to the ferrofluid cell. Basically, using a bright lamp instead of a camera flash. If you look, you can see the image of the camera reflected in the background. On the other side of the ferrofluid cell is a single rotating magnet, profile view with a north and south poles adjacent to the cell. Only the magnet moves, everything else is fixed in place.

Magnetic Thinker

submitted by: SirZerp

If the statue was made of Neodymium and magnetized thru the vertical axis, the colors show the energy levels and the white dots show the magnetic 'B' field lines.

CES 2014: Barobo robots teach children algebra

submitted by: nsf

At the Consumer Electronics Show, CES 14, Barobo, Inc. showed the NSF their robot that helps teach children algebra in a completely new way. By taking algebra off the page and into the physical world, Barobo aims to inspire a new generation of mathematicians.

History of Medicine. Plague and Vampirism in the Middle Ages.

submitted by: camdic
The Nachzehrer would be a special kind of vampire who lives in a constant state of numbness in his grave, without understanding what is happening around and just like a child, chewing spasmodically his dress. Martin Böhm wrote in 1601: "We have seen in times of the plague how dead people especially women - who have died of the plague make smacking noises in their graves, like a pig that is eating, and that while this smacking is going on the plague becomes much worse, usually in the...

MWV #81 - Sheldon Campbell - The Singing Microbiologist

submitted by: MicrobeWorld
Sheldon Campbell sings about microbiology. Dr. Campbell teaches microbiology at Yale School of Medicine and he uses music to enhance his lectures. He has one song for every block of lectures he gives on a major topic. Songs he's written include a song about fungi, tick borne disease, tuberculosis and one that reviews all of microbiology in eight minutes. Dr. Campbell hasn't done any testing to see his songs are more effective at getting his message across but he does get the occasional...

Maternal knowledge following nutrition behavior change communication is conditional upon both health workers’ knowledge and knowledge sharing efficacy in rural Haiti

submitted by: mduduzi
In the context of a food assistance program in rural Haiti, we developed measures of the effectiveness of community health worker (CHW)-delivered behavior change communication (BCC). We administered knowledge tests to 954 mothers and 38 CHWs to define 4 measures: CHW knowledge, maternal knowledge, knowledge-sharing efficacy (proportion of CHW knowledge shared), and shared correct knowledge between the CHWs and the mothers with whom they interacted. On the basis of the tests, CHWs had high...
Authors: Mduduzi Mbuya