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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.
This character was a gift to a WoW gamer who thought it was funny that her character's swords would disappear into the ground when she jumped.
"When is it Real Or Virtual?"
Natural
Stacie Page
This is a concave mirror at the fun house. A concave mirror, also called converging mirror, is curved inward allowing the mirror a way to focus the light at one point. The position of an object in front of the mirror will determine the type of image formed by the mirror. When an object is placed at the focal point, about two and a half feet away from the mirror, no image will be formed. When an object is placed between the focal point and the mirror the image then appears magnified, upright and virtual. A virtual image is when the three principle light rays travel from the object and form an image that appears to be behind the mirror when in reality the rays never reach that location. This is seen when the girl in the red Elon University sweatshirt is standing a foot away from the mirror and letters appear to be read as a flat mirror would. Once an object moves beyond the focal point, like the girl in the North Face jacket who is about 5 feet away from the mirror, the image then appears inverted, smaller and real.
All the doodles in this gallery are from the sixtysymbols.com video project and were usually drawn by physicists while they were being filmed.
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.
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Surface tension is responsible for the spherical shape of this suspended water droplet: cohesive forces cause neighboring water molecules to become attracted to each other. On the interior of the droplet, molecules are surrounded by other water molecules. The forces balance, and the mass is in equilibrium. Water molecules at the surface, however, are missing bonds to one side of them (at the air-water interface); thus, the cohesive forces distributed in the other directions become stronger, creating a higher attraction among the molecules at the liquids surface – surface tension. Because energy is released when bonds are formed, the configuration with the fewest missing bonds (i.e. the smallest surface area) will have the lowest energy and be the most stable. Thus, the water assumes a spherical shape.
Book of Physics for B.Tech. Engineering Physics 1 book contains concepts, basic principles, Interference, Polarization, Diffraction, Elements of Material Science, Special Theory of Relativity. Best Physics textbooks Author: Dr. S K Sharma, Dr. R K Jain, Dr. R K Mangal.
Einstein, that much quoted man - and very much an atheist, despite what too many people on Facebook like to claim.
With this poster, there was always a temptation to arrange the quotation over four lines rather than five and avoid the distinctive valley-shape the words ultimately formed.
It's grown on me though, and I think having four lines would have messed too much with the consistency of the A3 designs overall. What do you think?