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Physics professor Sidney Nagel explains the science behind why this "train" floats above the track at Physics with a Bang! in Chicago, Illinois on Saturday, December 6, 2008.
(Photo by: Beth Rooney/ for the Chicago Chronicle)
All the doodles in this gallery are from the sixtysymbols.com video project and were usually drawn by physicists while they were being filmed.
Eva Davidson, an R&D staff member and interim leader of the Research and Test Reactor Physics group studies fuel cycle modeling and analysis, reactor physics analysis and reactor design, and Monte Carlo, deterministic and hybrid and radiation transport methods.
This is a good community outreach from the University of Maryland
(cc) Shashi Bellamkonda www.shashi.name Please feel free to use this picture in your blog ,website or presentation and credit as shown. Thanks.
Physics professor Heinrich Jaeger makes smoke rings with a garbage can at Physics with a Bang in Chicago, Illinois on Saturday, December 6, 2008.
(Photo by: Beth Rooney/ for the Chicago Chronicle)
This is a good community outreach from the University of Maryland
(cc) Shashi Bellamkonda www.shashi.name Please feel free to use this picture in your blog ,website or presentation and credit as shown. Thanks.
Michael James
Contrived
"Where's my Eraser, Bud?"
When a pencil is placed behind a glass of water, the end of eraser disappears. However, the eraser is visible on the opposite side of the glass. The pencil appears to be severed where it meets the glass. This optic phenomena is due to the glass of water behaving like a converging lens. The image produced is real, inverted, and has a magnification greater than one. The eraser appears to be stretched. This is due to the round shape of the glass, which allows the water to take a convex shape. The law of refraction is obeyed because when light enters a material, the water glass which has a greater index of refraction than air, the speed of light is slowed. Because of the this, the light rays are bent, causing the inverted, magnified eraser.
This is a photo of the Maths and Physics Building. There are elements of both a green building here and some elements that are not green.
The Green elements of the Math and Physics building are the walkway which allow for students who walk and ride their bike to school to do so and not harm the grass. This walkway not only helps the grass but also he students become more healthy.
Secondly, there are large windows which allow more light to get into the building so there are less light bulbs used and less electricity has to be paid for. However, one of the reasons this building is not totally green is because of the use of outside lighting which causes light pollution and thus deters the allowance for a "green" building.
Finally, there are both trees for a wildlife friendly area as well as the ability for light shade. Also, there are bike racks to encourage students to not use harmful gases found in cars to get to class from far away.