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.
StumbleUpon Zeno's "Paradox of the Arrow" passage from Biocentrismby Robert Lanza M.D.Related Posts:The Paradox Of The Infinite CircleThe Liar ParadoxThe Barber Paradox Tags: paradoxes Posted in Time Comments It's just an exercise in logic by an ancient philosopher. The 7 Natural Laws of the Universe « Path to Enlightenment The 7 Natural Laws of the Universe The Law of Attraction is just part of one of the 7 natural laws of the Universe: the Law of Vibration. Of the 7 Laws, it may be the most important in how our everyday lives play out, but all of the laws are in effect whether we are aware of them or not. Knowing what the 7 laws are and how they work can make a significant difference in applying them to create the life you truly desire. The 7 natural laws are in no particular order, but since the Law of Attraction has been discussed so much in The Secret, we’ll start with it. The Law of Vibration states that everything vibrates and nothing rests. The Law of Relativity states that nothing is what it is until you relate it to something. The Law of Cause and Effect states that for every action, there is an equal and opposite reaction. The Law of Polarity states that everything has an opposite. The Law of Rythym states that everything has a natural cycle. Source: 7 natural laws of universe
Mycologist's So-Called Life Box - Environment The resourceful mycologist (that's a fungi-studier) Paul Stamets has made cardboard packaging that can be planted and will grow into trees. It's called the Life Box. The Life Box suite of products builds upon the synergy of fungi and plants by infusing spores and seeds together inside of packaging materials that can be planted. Here's a video of Stamets (wearing a hat that makes him look a little like a mushroom himself) explaining how the Life Box works on local San Francisco news. If you run a company that could use these instead of normal cardboard, I will happily post about how responsible you are if you pledge to switch to these things. Via Core77
String Theory String theory was first studied in the late 1960s[3] as a theory of the strong nuclear force before being abandoned in favor of the theory of quantum chromodynamics. Subsequently, it was realized that the very properties that made string theory unsuitable as a theory of nuclear physics made it a promising candidate for a quantum theory of gravity. Five consistent versions of string theory were developed until it was realized in the mid-1990s that they were different limits of a conjectured single 11-dimensional theory now known as M-theory.[4] Many theoretical physicists, including Stephen Hawking, Edward Witten and Juan Maldacena, believe that string theory is a step towards the correct fundamental description of nature: it accommodates a consistent combination of quantum field theory and general relativity, agrees with insights in quantum gravity (such as the holographic principle and black hole thermodynamics) and has passed many non-trivial checks of its internal consistency.
Atomic Structure An updated version of this lesson is available at Visionlearning: Atomic Theory & Ions & Isotopes In the last lesson we learned that atoms were particles of elements, substances that could not be broken down further. In examining atomic structure though, we have to clarify this statement. An atom cannot be broken down further without changing the chemical nature of the substance. For example, if you have 1 ton, 1 gram or 1 atom of oxygen, all of these units have the same properties. Atoms are made up of 3 types of particles , and . A neutron walked into a bar and asked how much for a drink. The bartender replied, "for you, no charge." -Jaime - Internet Chemistry Jokes The atom above, made up of one proton and one electron, is called hydrogen (the abbreviation for hydrogen is H). Keep in mind that atoms are extremely small. In an electrically neutral atom, the positively charged protons are always balanced by an equal number of negatively charged electrons. Two of hydrogen
Top 10 Most Dangerous Plants in the World 1. Most likely to eat a rat Giant Pitcher Plant: Nepenthes attenboroughii Discovered more than 5000 feet above sea level on Mount Victoria in the Philippines, the giant, carnivorous pitcher plant secretes a nectar-like substance to lure unsuspecting prey into a pool of enzymes and acid. 2. Castor Bean Plant: Ricinus communis Castor-bean plants can be purchased at just about any garden center, despite containing the deadly poison ricin. 3. Western Water Hemlock: Cicuta douglasii Deemed the most "violently toxic plant that grows in North America" by the USDA, the water hemlock contains the toxin cicutoxin, which wreaks havoc on the central nervous system, causing grand mal seizures--which include loss of consciousness and violent muscle contractions--and eventually death, if ingested. 4. White snakeroot: Eupatorium rugosum Drinking milk from a cow that decided to chow down on white snakeroot could lead to deadly milk sickness, as was the case with Abraham Lincoln's mother Nancy Hanks. 5. 6.
5 Really Weird Things About Water Water, good ol' H2O, seems like a pretty simple substance to you and me. But in reality, water - the foundation of life and most common of liquid - is really weird and scientists actually don't completely understand how water works. Here are 5 really weird things about water: 1. Take two pails of water; fill one with hot water and the other one with cold water, and put them in the freezer. In 1963, a Tanzanian high-school student named Erasto B. Thankfully, Mpemba didn't back down - he convinced a physics professor to conduct an experiment which eventually confirmed his observations: in certain conditions, hot water indeed freezes before cold water*. Actually, Mpemba was in good company. But how do scientists explain this strange phenomenon? 2. Everybody knows that when you cool water to 0 °C (32 °F) it forms ice ... except that in some cases it doesn't! Scientist know a lot about supercooling: it turns out that ice crystals need nucleation points to start forming. 3. 4. 5. [YouTube clip]
Voyager Golden Record Dimension A diagram showing the first four spatial dimensions. 1-D: Two points A and B can be connected to a line, giving a new line segment AB. 2-D: Two parallel line segments AB and CD can be connected to become a square, with the corners marked as ABCD. 3-D: Two parallel squares ABCD and EFGH can be connected to become a cube, with the corners marked as ABCDEFGH. 4-D: Two parallel cubes ABCDEFGH and IJKLMNOP can be connected to become a hypercube, with the corners marked as ABCDEFGHIJKLMNOP. In physical terms, dimension refers to the constituent structure of all space (cf. volume) and its position in time (perceived as a scalar dimension along the t-axis), as well as the spatial constitution of objects within—structures that correlate with both particle and field conceptions, interact according to relative properties of mass—and are fundamentally mathematical in description. The concept of dimension is not restricted to physical objects. A tesseract is an example of a four-dimensional object.
Hi-Res Images of Hydrogen Nonmetal, mass: 1.008 u, 2 stable isotopes (1, 2), abundance rank (earth/space): 9/1 Click image to magnify. Vial of glowing ultrapure hydrogen, H2. Original size in cm: 1 x 5. Hydrogen is the lightest and simplest element and, with a ratio of 80%, is the main ingredient of the visible universe. 20% consist of helium, the ratio of the heavier elements is below 1%. Right: The Great Orion Nebula, 80% hydrogen. The images are licensed under a Creative Commons Attribution 3.0 Unported License, unless otherwise noted.