Math Gems. From Eric Weisstein's World of Chemistry. Juan Enriquez shares mindboggling science. Scale of Universe - Interactive Scale of the Universe Tool. Panoptikos. 10 Creepy Plants That Shouldn't Exist. 8 Things Everybody Ought to Know About Concentrating. “Music helps me concentrate,” Mike said to me glancing briefly over his shoulder.
Mike was in his room writing a paper for his U.S. History class. On his desk next to his computer sat crunched Red Bulls, empty Gatorade bottles, some extra pocket change and scattered pieces of paper. Factoids > adjective order in English. The "ugly red wooden box" sounds correct, but the "wooden red ugly box" sounds wrong. Pistol Shrimp
Researchers Discover the First Known Virus That Preys on Other Viruses. For The Ladies. S Gravity Probe B confirms two Einstein theories. Artist concept of Gravity Probe B orbiting the Earth to measure space-time, a four-dimensional description of the universe including height, width, length, and time.
Stanford and NASA researchers have confirmed two predictions of Albert Einstein's general theory of relativity, concluding one of the space agency's longest-running projects. Known as Gravity Probe B, the experiment used four ultra-precise gyroscopes housed in a satellite to measure two aspects of Einstein's theory about gravity. List of mathematical symbols. When reading the list, it is important to recognize that a mathematical concept is independent of the symbol chosen to represent it.
For many of the symbols below, the symbol is usually synonymous with the corresponding concept (ultimately an arbitrary choice made as a result of the cumulative history of mathematics), but in some situations a different convention may be used. For example, depending on context, the triple bar "≡" may represent congruence or a definition. Further, in mathematical logic, numerical equality is sometimes represented by "≡" instead of "=", with the latter representing equality of well-formed formulas. In short, convention dictates the meaning. Each symbol is shown both in HTML, whose display depends on the browser's access to an appropriate font installed on the particular device, and in TeX, as an image.
Guide This list is organized by symbol type and is intended to facilitate finding an unfamiliar symbol by its visual appearance. Basic symbols 32232.jpg (JPEG Image, 1199×782 pixels) - Scaled (76. Alkali metals in water, accurate! 6 Easy Steps to Falling Asleep Fast. Psychological research over three decades demonstrates the power of Stimulus Control Therapy.
Can’t get a good night’s sleep? You’re not alone. In surveys of what would improve people’s lives, a good night’s sleep frequently comes near the top of the list. Poor sleep results in worse cognitive performance, including degraded memory, attention, performance and alertness. And in the long term insomnia is also associated with anxiety and depression. All sorts of methods have been tried to combat poor sleep, from drugs through psychological remedies to more outlandish treatments.
The problem with drugs is that they have side-effects and are often addictive. Stimulus Control Therapy Professor Richard R. Of these the most successful single intervention is called Stimulus Control Therapy (Morin et al., 2006). 15 houseplants for improving indoor air quality. Neurosci : Neuroscience articles, jobs and information. Your Brain in Love. Men and women can now thank a dozen brain regions for their romantic fervor.
Researchers have revealed the fonts of desire by comparing functional MRI studies of people who indicated they were experiencing passionate love, maternal love or unconditional love. Together, the regions release neurotransmitters and other chemicals in the brain and blood that prompt greater euphoric sensations such as attraction and pleasure. Conversely, psychiatrists might someday help individuals who become dangerously depressed after a heartbreak by adjusting those chemicals. Passion also heightens several cognitive functions, as the brain regions and chemicals surge. “It’s all about how that network interacts,” says Stephanie Ortigue, an assistant professor of psychology at Syracuse University, who led the study. Graphics by James W. 10 Brilliant Social Psychology Studies. Ten of the most influential social psychology experiments.
RF Cafe - Mathematical References. Stephen Wolfram: A New Kind of Science. 47 Mind-Blowing Psychology-Proven Facts You Should Know About Yourself. WHAT YOU ARE ABOUT TO READ IN THE NEXT PARAGRAPH IS COMMONLY BELIEVED, BUT NOT TRUE – You read by recognizing the shapes of words and groups of words.
Words that are in all capital letters all have the same shape: a rectangle of a certain size. This makes words displayed in all uppercase harder to read than upper and lower case (known as “mixed case”). Mixed case words are easier to read because they make unique shapes, as demonstrated by the picture below. Hammack Home. This book is an introduction to the standard methods of proving mathematical theorems.
It has been approved by the American Institute of Mathematics' Open Textbook Initiative. Also see the Mathematical Association of America Math DL review (of the 1st edition), and the Amazon reviews. UCSB scientists discover how the brain encodes memories at a cellular level. (Santa Barbara, Calif.) –– Scientists at UC Santa Barbara have made a major discovery in how the brain encodes memories. The finding, published in the December 24 issue of the journal Neuron, could eventually lead to the development of new drugs to aid memory.
The team of scientists is the first to uncover a central process in encoding memories that occurs at the level of the synapse, where neurons connect with each other. "When we learn new things, when we store memories, there are a number of things that have to happen," said senior author Kenneth S.