Community
Lessons
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- Video
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Heart Attack!!
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- This 3d medical animation shows a heart attack resulting from atherosclerosis, which is inflammation of an artery. It was designed to be an immersive experience to hold the view...
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- The doctors do bypass how it works!!
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Notes on reaction mechanism
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- Mechanisms describe in a stepwise manner the exact collisions and events that are required for the conversion of reactants into products. Mechanisms achieve that goal by breakin...
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Normality
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- When you need to compare solutions on the basis of concentration of specific ions or the amount of charge that the ions have, a different measure of concentration can be very us...
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- The problem can only be solved if humans take action and modify their activities. Scientists and environmental campaigners say that human impact on the global climate can ...
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- There is expected to be an increase in the number of hot days, and a decrease in the number of cold days. Warmer temperatures will lead to an increase in severe droughts and f...
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- THE FACTS:- In the last century, the global average surface temperature has risen by 0.3-0.6 degrees C. 1998 has proved to be Britain’s hottest year in the last t...
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radio waves
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- Radio waves were first predicted by mathematical work done in 1865 by James Clerk Maxwell. Maxwell noticed wavelike properties of light and similarities in electrical and magnet...
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- <!—[if gte mso 9]> Normal 0 false false false MicrosoftInternetExplorer4 <—[if gte mso 9]> <—...
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- The Wright Brothers’ Flight to Fame Orville and Wilbur Wright were two brothers who are credited with inventing the first airplane. You’re probably thinking to yo...
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Early Gliders in Aviation
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- Early Gliders in Aviation Before the Wright Brothers, there were a bunch of other guys who helped pave the way for their success: Let’s take a look at some notable gl...
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The Origins of Aviation
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- The Origins of Aviation Man must rise above the Earth—to the top of the atmosphere and beyond—for only thus will he fully understand the world in which he lives. — Socrates ...
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Hot Air Balloons Today
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- Hot Air Balloons Modern hot air ballons, with an onboard heat source, were pioneered by Ed Yost, beginning in the 1950s; his work resulted in his first successful flight, o...
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An Introduction to Airplanes
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- The Wright brothers invented the airplane after learning from the mistakes of people in the past. They created the fundamentals of the kind of plane we use today. Let’s se...
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How Hot Air Balloons Work
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- Hot Air Balloons Now that we’ve covered the History of the Hot Air Balloons, let’s now focus on the construction, the significance behind the use of hot air, an...
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- Hot Air Balloons The hot air balloon is the oldest successful human-carrying flight technology. On November 21, 1783, in Paris, France – the first manned flight was m...
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- By Harvard pianist and mathematician, a very funny Tom Lehrer.
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Small is the new Big!
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- minute, tiny, minuscule, teeny, mini, ... large, enormous, gigantic, huge, humungous, ... Any thing is smaller than small?
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- WHY do we sleep?People conserve energy by sleeping periodically.Sleep has a protective function because it keeps people tucked away at ...
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Memory 101: Memory Processes
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- Memory Processes Memory: the capacity for storing and retrieving information.Three processes are involved in memory:encoding storageretrieval.These 3 processes help to de...
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- When learning about memory, don’t forget to remember Hermann Ebbinghaus! He was the first person to do scientific studies of forgetting. Hermann used himself as a s...
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- Pinky and the Brain sing and dance through an anatomy lesson covering the human brain.
