The History of the Universe in 200 Words or Less Quantum fluctuation. Inflation. Expansion. Strong nuclear interaction. Particle-antiparticle annihilation. Copyright 1996-1997 by Eric Schulman. This piece was the inspiration for the book A Briefer History of Time and led to the Annals of Improbable Research Universal History Translation Project. Interested in learning more about any of these events? Personal and Historical Perspectives of Hans Bethe - StumbleUpon The Math Forum @ Drexel University The Math Forum has a rich history as an online hub for the mathematics education community. A debt of gratitude is owed to the dedicated staff who created and maintained the top math education content and community forums that made up the Math Forum since its inception. NCTM will continue to make many of the most popular parts of the Math Forum content accessible to the mathematics education community. We hope that you will join or continue to be a member of the NCTM community to access even more high-quality resources for teaching and the learning of each and every student. Problems of the Week The Math Forum created Problems of the Week as an integrated program that features problems by standard and additional teacher support materials. Continue Your Math Education Conversations in MyNCTM! MyNCTM is an online community where NCTM members can ask questions, network and connect with each other, start and join discussions, find and upload resources, and interact with education experts.
Visible Proofs: Forensic Views of the Body: Galleries: Media: Autopsy WARNING: Some people may find images from actual postmortem dissections disturbing. Viewer discretion advised. Videos on this page require either QuickTime Player or Windows Media Player. Postmortem dissection, or autopsy, was among the first scientific methods to be used in the investigation of violent or suspicious death. Beginning an autopsy New York University Medical Center, The Forensic Autopsy (New York, 1978). View with QuickTime: Low Quality | High Quality View with Windows Media Player: Low Quality | High QualityRead the transcript Dissecting and analyzing the body parts University of Calgary and the Office of the Alberta Attorney General, Investigating Sudden Death, vol. 1(Alberta, Canada, 1978–80). View with QuickTime: Low Quality | High Quality View with Windows Media Player: Low Quality | High QualityRead the transcript
100 Incredible Lectures from the World's Top Scientists Posted on Thursday June 18, 2009 by Staff Writers By Sarah Russel Unless you’re enrolled at one of the best online colleges or are an elite member of the science and engineering inner circle, you’re probably left out of most of the exciting research explored by the world’s greatest scientists. But thanks to the Internet and the generosity of many universities and online colleges, you’ve now got access to the cutting edge theories and projects that are changing the world in this list below. If you’re looking for even more amazing lectures, check out our updated list for 2012 with more talks from great minds. General Let the world’s top scientists explain exactly how they do their job when you listen to these lectures. Science and Engineering From materials science to the study of thermodynamics, learn more about the science of engineering here. WTC Lecture – collapse of WTC Buildings: Steven E. Biology and Medicine Chemistry Physics and Astronomy Earth and Environment Technology Science and Business
How To Destroy A Black Hole The idea of a body so massive that its escape velocity exceeds the speed of light dates back to the English geologist John Michell who first considered it in 1783. In his scenario, a beam of light would travel away from the massive body until it reached a certain height and then returned to the surface. Modern thinking about black holes is somewhat different, not least because special relativity tells us that the speed of light is a universal constant. The critical concept that physicists focus on today is the event horizon: a theoretical boundary in space through which light and other objects can pass in one direction but not in the other. Since light cannot escape, the event horizon is what makes a black hole black. The event horizon is somewhat of a disappointment to many astrophysicists because the interesting physics, the stuff beyond the known laws of the universe, all occurs inside it and is therefore hidden from us. At first sight, that seems straightforward. That seems bizarre.
The Past, Present, and Future of Data Storage As we approach the end of 2011 and look forward to another year, we pause to reflect on the long history of data storage. Mankind's ability to create, process, store, and recall information is light years ahead of the days of cave paintings and engravings on stone tablets. Vast amounts of information can be stored on drives smaller than your thumb, and data centers are cropping up at an increasingly high rate. What does the future of data storage hold? Embed this image on your site: SQLZOO Learn SQL using: SQL Server, Oracle, MySQL, DB2, and PostgreSQL. Reference: how to... How to read the data from a database. 2 CREATE and DROP How to create tables, indexes, views and other things. 3 INSERT and DELETE How to put records into a table, change them and how to take them out again. 4 DATE and TIME How to work with dates; adding, subtracting and formatting. 5 Functions How to use string functions, logical functions and mathematical functions. 6 Users How to create users, GRANT and DENY access, get at other peoples tables. 7 Meta Data How to find out what tables and columns exist. 8 SQL Hacks Some SQL Hacks, taken from "SQL Hacks" published by O'Reilly 9 Using SQL with PHP on Amazon EC2 servers Video tutorials showing how to run MySQL, PHP and Apache on Amazon's EC2 cloud servers. 10 An introduction to transactions Video tutorials showing how sessions can interfere with each other and how to stop it. 11 Using SQL with C# in Visual Studio
Physics Flash Animations We have been increasingly using Flash animations for illustrating Physics content. This page provides access to those animations which may be of general interest. The animations will appear in a separate window. The animations are sorted by category, and the file size of each animation is included in the listing. In addition, I have prepared a small tutorial in using Flash to do Physics animations. LInks to versions of these animations in other languages, other links, and license information appear towards the bottom of this page. The Animations There are 99 animations listed below. Other Languages and Links These animations have been translated into Catalan, Spanish and Basque: En aquest enllaç podeu trobar la versió al català de les animacions Flash de Física. Many animations have been translated into Greek by Vangelis Koltsakis. Most animations have been translated into Hungarian by Sandor Nagy, Eötvös Loránd University.
SCHOPENHAUER'S 38 STRATAGEMS, OR 38 WAYS TO WIN AN ARGUMENT Arthur Schopenhauer (1788-1860), was a brilliant German philosopher. These 38 Stratagems are excerpts from "The Art of Controversy", first translated into English and published in 1896. Carry your opponent's proposition beyond its natural limits; exaggerate it. The more general your opponent's statement becomes, the more objections you can find against it. (abstracted from the book:Numerical Lists You Never Knew or Once Knew and Probably Forget, by: John Boswell and Dan Starer)