Video Courses on Academic Earth

Symptoms You Shouldn't Ignore 3. SHARP PAIN IN THE ABDOMENWhat it feels like: All the metaphors apply—knife in the gut, bullet in the belly, skewer in the stomach—except this attack is from within. What it could be: Since the area between your ribs and your hips is jam-packed with organs, the pain can be a symptom of either appendicitis, pancreatitis, or an inflamed gallbladder. In all three cases, the cause is the same: Something has blocked up the organ in question, resulting in a potentially fatal infection. How to fix it: If the pain is in your lower-right abdomen and your white-blood-cell count is up, says Dr. Kra, it's probably appendicitis (out comes the appendix). Petrichor Petrichor (/ˈpɛtrɨkɔər/) is the earthy scent produced when rain falls on dry soil. The word is constructed from Greek, petra, meaning ‘stone’ + ichor, the fluid that flows in the veins of the gods in Greek mythology. In 2015, MIT scientists used high-speed cameras to record how the scent moves into the air.[5] The tests involved approximately 600 experiments on 28 different surfaces, including engineered materials and soil samples.[6] When a raindrop hits a porous surface, small bubbles form that float to the surface and release aerosols.[5] Such aerosols carry the scent as well as bacteria and viruses from the soil.[5] Raindrops that move at a slower rate tend to produce more aerosols; this serves as an explanation for why the petrichor is more common after light rains.[5]

Physics 101: Conceptual Physics This is a self-paced version of Physics 101 that covers a few key topics. The course is arranged as a series of modules. In each module, a JAVA applet interactive exercise is integrated into the learning environment. This is a somewhat difficult way to learn some basic physics principles and this class is about experimentation and inference and discovering the physics that way, not about memorizing a bunch of formula that ultimately are not understood. This class may then be ideal for high school teachers trying to further their understanding of physics and/or more advanced students.

60 Small Ways to Improve Your Life in the Next 100 Days Contrary to popular belief, you don’t have to make drastic changes in order to notice an improvement in the quality of your life. At the same time, you don’t need to wait a long time in order to see the measurable results that come from taking positive action. All you have to do is take small steps, and take them consistently, for a period of 100 days. Below you’ll find 60 small ways to improve all areas of your life in the next 100 days. Home 1.

Your Brain On 3D Learning Sharebar Help! I’ve been caught in an immersive 3D Learning Environment! Dream Anatomy: Gallery: Gautier D’Agoty and G.J. Duverney: Anatomie des parties Click on the artwork above for a higher resolution images. (loading time is long for slow connections) Anatomie des parties de la génération de l’homme et de la femme Paris, 1773.

Existence First published Wed Oct 10, 2012 Existence raises deep and important problems in metaphysics, philosophy of language, and philosophical logic. Many of the issues can be organized around the following two questions: Is existence a property of individuals? and Assuming that existence is a property of individuals, are there individuals that lack it? "How to Write a Paper at the Last Minute (Also Known As: The Procrastinator's Guide to BS-ing an Essay)" by Jessica L Let's face it: we've all been there. It's 9 p.m. on a Sunday night, and you have a 15-page research paper due tomorrow that you have barely started. You've had a month to do it, but somehow, all you've managed is to check out a few books from the library and jot down a working thesis.

How to think positive. You can think posit WHEN A PERSON THINKS a negative thought and tries to get rid of it, that person is thinking positively negatively. Daniel M. Wegner of Trinity University in San Antonio, Texas, has conducted a long string of experiments that show the futility and actual danger of trying to get rid of thoughts. In some of the experiments, Wegner told his subjects, “Try not to think about a white bear.”

Collection of remarkable three-body motions The applets of this collection are created with the help of Easy Java Simulations tool developed by Francisco Esquembre, professor at University of Murcia, Spain. Many other examples of orbital motions can be found in the extensive package of educational software Planets and Satellites distributed by the American Institute of Physics. The package was developed by the author as a desk-top laboratory for individual highly interactive work to help students visualize and explore the laws of dynamics as they apply to both natural planetary systems and artificial satellites. The programs of this package illustrate Kepler's laws, trajectories in velocity space, various families of orbits, evolution of an orbit in the atmosphere, active manoeuvres in space and relative motions of orbiting bodies, precession of an orbit, motions of a binary star components, a planet in a double-star system, several planets orbiting a star, encountering planetary systems that exchange planets, and much more.

Memory Improvement Techniques - Improve Your Memory with MindTools © VeerPRZEMYSLAW PRZYBYLSKI Use these techniques to improve your memory. The tools in this section help you to improve your memory. They help you both to remember facts accurately and to remember the structure of information. The tools are split into two sections.