110+ Variations of the Second Law of Thermodynamics Questions about these second law variations? Know of other second law definitions? Copyright © Institute of Human Thermodynamics and IoHT Publishing Ltd. Federal Resources for Educational Excellence FREE Features These features originally appeared on the FREE.ED.gov features blog. The features highlight resources and ideas related to holidays, awareness months, anniversaries and seasonal topics. January February March
Chinese Calligraphy 中國書法 谢順佳 ( Chinese : 李 白 ; pinyin : , 701 – 762, also well known as , among other transliterations ) was a major Chinese poet of the Tang dynasty poetry period . Regarded as one of the greatest poets of the Tang Dynasty , often called China's "golden age" of poetry, Li Bai was both a prolific and a profound poet, as well as one who stretched the rules of versification of his time. Around a thousand yet existing poems are attributed to him. [ 1 ] Thirty-four of his poems are included in the popular anthology . In the area of Chinese cultural influence, Li Bai's poetry has been much esteemed from his lifetime through the present day. His influence also extends to the West through many translations, adaptations, and much inspiration. Li (李) is the family name , or surname; however, he has been and is known by various names.
One Sad Monkey » Carl Sagan What lady could resist my turtleneck? I was listening to the love story between Carl Sagan and his third and final wife Anne Druyan from an episode in Radiolab. I kept playing it again and again because there this gigantic gap in the story that seems to require a giant cognitive leap that I just couldn’t make. Carl was on his second marriage with his wife Linda Salzman with which he had a child with. Flatland: A romance of many dimensions With Illustrations by the Author, A SQUARE (Edwin A. Abbott 1838-1926) To The Inhabitants of SPACE IN GENERAL And H. C. IN PARTICULAR This Work is Dedicated By a Humble Native of Flatland In the Hope that Even as he was Initiated into the Mysteries Of THREE Dimensions Having been previously conversant With ONLY TWO So the Citizens of that Celestial Region May aspire yet higher and higher To the Secrets of FOUR FIVE OR EVEN SIX Dimensions Thereby contributing To the Enlargement of THE IMAGINATION And the possible Development Of that most rare and excellent Gift of MODESTY Among the Superior Races Of SOLID HUMANITY The first objection is, that a Flatlander, seeing a Line, sees something that must be thick to the eye as well as long to the eye (otherwise it would not be visible, if it had not some thickness); and consequently he ought (it is argued) to acknowledge that his countrymen are not only long and broad, but also (though doubtless in a very slight degree) thick or high.
Articles on "Electricity" Why three prongs?Why do wall outlets have three holes? "Grounding" and safety. Right Angle CircuitryDo Lenz' Law and the Right Hand rule still work... after you've been turned INSIDE OUT by that greasy black Fog? Free fraction videos online Enjoy free online math videos on these fraction topics: (Fraction videos, part 2, are on this page.) The videos are recorded in high-density (HD) and are viewable both here as well as at my Youtube channel. These videos are usable for students, teachers, and parents. Englert–Greenberger duality relation The Englert–Greenberger duality relation relates the visibility, , of interference fringes with the definiteness, or distinguishability, , of the photons' paths in quantum optics. As an inequality: The relationship was first experimentally shown by Greenberger and Yassin in 1988. It was later theoretically derived by Jaeger, Shimony, and Vaidman in 1995, and over a year later it was also mentioned by Englert, in 1996.
Bad Astronomy Well now, this is an interesting discovery: astronomers have found what looks like a "super-Earth" – a planet more massive than Earth but still smaller than a gas giant – orbiting a nearby star at the right distance to have liquid water on it! Given that, it might – might – be Earthlike. This is pretty cool news. We’ve found planets like this before, but not very many! And it gets niftier: the planet has at least five siblings, all of which orbit its star closer than it does. Science & Environment Imagine if you could see time laid out in front of you, or surrounding your body. And you could physically point to specific dates in space. Important dates might stand out - birthdays, anniversaries. And you could scan a visible timeline - to check if you were available - whenever you made plans. No actual diary necessary. According to Julia Simner, a psychologist from the University of Edinburgh, there is a reasonable chance you can.
Special Relativity Special Relativity These pages are ok as far as they go, but they are missing the planned highlight, to show you what things actually look like when you travel at near the speed of light. I hope to have the opportunity to develop these pages further as time permits. Here is my opinionated Guide to Special Relativistic Flight Simulator Sites. s Guide Interactive Math Resources Interactive Math Websites, Math Websites for Interactive Whiteboards Interactive Math Websites for Interactive Whiteboards Manipulatives eVa en double slit The double-slit experiment is a demonstration that light and matter can display characteristics of both classically defined waves and particles; moreover, it displays the fundamentally probabilistic nature of quantum mechanical phenomena. The experiment belongs to a general class of "double path" experiments, in which a wave is split into two separate waves that later combine back into a single wave. Changes in the path lengths of both waves result in a phase shift, creating an interference pattern. Another version is the Mach–Zehnder interferometer, which splits the beam with a mirror. This experiment is sometimes referred to as Young's experiment and while there is no doubt that Young's demonstration of optical interference, using sunlight, pinholes and cards, played a vital part in the acceptance of the wave theory of light, there is some question as to whether he ever actually performed a double-slit interference experiment. Overview
What would Earth's skies look like with Saturn's rings? Posted By Jason Davis Topics: pretty pictures, art Illustrator and author Ron Miller specializes in, among other things, incredible visualizations of other worlds. He has rendered the surface of Titan, peered into black holes for Discover magazine, and designed a Pluto stamp that is currently hurtling toward the far reaches of our solar system aboard the New Horizons spacecraft.