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Free Online Courses. Advance your College Education & Career. The Loneliest Plant In The World : Krulwich Wonders… Hide captionAn 1857 illustration of Encephalartos woodii.
Library of Congress One day in 1895, while walking through the Ngoya Forest in Zululand, southern Africa, a botanist with the oh so suitable name of John Medley Wood caught sight of a tree. Chemistry World - Interactive Periodic Table. Current Biology - Political Orientations Are Correlated with Brain Structure in Young Adults.
Figure 1 Individual Differences in Political Attitudes and Brain Structure (A) Regions of the anterior cingulate where gray matter volume showed a correlation with political attitudes (see Experimental Procedures for full details) are shown overlaid on a T1-weighted MRI anatomical image in the stereotactic space of the Montreal Neurologic Institute Template [ 29 ].
A statistical threshold of p < 0.05, corrected for multiple comparisons (see Experimental Procedures ), is used for display purposes. Extraction-intro-08. Extraction: Isolation / Separation of 4-Chloroaniline (p-chloroaniline), Benzoic acid, and 4-Dibromobenzene (p-dibromobenzene).Introduction * Procedure (Adapted from McMaster University's Experiments: Introduction: (Read Lab Text/Guide pp.128-131, 2nd ed; pp.116-125, 1st ed) Separation of a mixture of chemical compounds and isolation of the individual compounds is very important.
This can be achieved by a variety of methods. The most common method in organic chemistry is extraction, which depends on either a difference in either the physical and/or chemical properties of the componenets. Origins of life: Researchers extract more 'primordial soup' data from 1953 experiment - latimes.com. A historic 1953 experiment in which a chemist created a "primordial soup" of organic molecules — showing that the chemical building blocks of life could have originated on a hot, gassy Earth — was even more remarkable than scientists back then realized.
Half a century later, researchers have unearthed a trove of long-lost experiments conducted by U.S. chemist Stanley Miller in his classic work. Using modern technology to analyze one key experiment, they have discovered that Miller's attempts produced more organic compounds than even he realized. The study, published online Monday in the journal Proceedings of the National Academy of Sciences, sheds light on Miller's work — and shows how early-Earth volcanoes could have been a breeding ground for organic compounds. BBC Four Programmes - Chemistry: A Volatile History.
Massive Floater / 3 March 2011. Alexander Shulgin Vault. Alexander "Sasha" Shulgin, Ph.D., is a pharmacologist and chemist known for his creation of new psychoactive chemicals.
After serving in the Navy, he earned his Ph.D. in Biochemistry from U.C. Berkeley in 1954. In the late 50s and early 60s he did post-doctorate work in psychiatry and pharmacology at U.C. San Francisco and worked briefly as research director at BioRad Laboratories before becoming a senior research chemist at Dow Chemical Co. Khan Academy. February 2, 2011 - Giant Virus, Tiny Protein Crystals Show X-ray Laser’s Power and Potential. Menlo Park, Calif.
—Two studies to be published February 3 in Nature demonstrate how the unique capabilities of the world’s first hard X-ray free-electron laser—the Linac Coherent Light Source, located at the Department of Energy’s SLAC National Accelerator Laboratory—could revolutionize the study of life. Nanocar. Chemical structure of a nanocar.
The wheels are C60fullerene molecules.[1] The nanocar is a molecule designed in 2005 at Rice University by a group headed by Professor James Tour. Unenumerated. Dynamic Periodic Table. Hydrofluoric Acid. Incidents involving hydrogen fluoride, or hydrofluoric acid, are not common, but the consequences of exposure to this compound by any means can be devastating. This little-known acid has unique properties that make it extremely dangerous to emergency personnel and others. Amazing Sight in the South Pacific. A yacht was traveling in the south Pacific when the crew came across a weird sight.
Look at these photos and try to imagine the thrill of experiencing this phenomenon. Medical researcher discovers integration, gets 75 citations « An American Physics Student in England. (Note: this post is `just for fun;’ no premeds, doctors, researchers, or nobel laureates were meant to be offended in the writing of this post.)
The bane of many American physics grad students is teaching introductory physics to premed students. Due to the nature of med school admissions, one ends up with classrooms full of students who cannot afford to get anything less than an A+++ if they hope to make it to (Ivy League) Med School. Further, due to the nature of medicine, these students also approach physics as something that’s meant to be memorized by rote. Video : how to make magnetic fluid hq - Vidivodo. Estimating the Airspeed Velocity of an Unladen Swallow. Hashing out the classic question with Strouhal numbers and simplified flight waveforms. After spending some time last month trying to develop alternate graphic presentations for kinematic ratios in winged flight, I decided to try to answer one of the timeless questions of science: just what is the airspeed velocity of an unladen swallow?
What do you mean, an African or European Swallow? To begin with, I needed basic kinematic data on African and European swallow species. Although 47 of the 74 worldwide swallow species are found in Africa,1 only two species are named after the continent: the West African Swallow (Hirundo domicella) and the South African Swallow (Hirundo spilodera), also known as the South African Cave Swallow. Biochemical Pathways. Electronic version Following the outstanding success of the two posters for over four decades, and of the electronic version hosted on ExPASy since 1994, Roche has created a new electronic version of Biochemical Pathways.
This is freely accessible to everybody interested such as biochemists, graduate and undergraduate students, teachers and pupils, and allows to explore both Metabolic Pathways and Cellular and Molecular Processes. The electronic Biochemical Pathways allows the user to search the wall charts with keywords, set focus effects, activate filtering functions and zooming in on the details and elements of interest. Through a simple navigational tool, the digital version has greatly simplified the user experience and ease of navigation. 10 Strange Things About The Universe - Top 10 Lists. Space The universe can be a very strange place. While groundbreaking ideas such as quantum theory, relativity and even the Earth going around the Sun might be commonly accepted now, science still continues to show that the universe contains things you might find it difficult to believe, and even more difficult to get your head around.
This is a news website article about a scientific finding. In this paragraph I will state the main claim that the research makes, making appropriate use of "scare quotes" to ensure that it's clear that I have no opinion about this research whatsoever. In this paragraph I will briefly (because no paragraph should be more than one line) state which existing scientific ideas this new research "challenges". If the research is about a potential cure, or a solution to a problem, this paragraph will describe how it will raise hopes for a group of sufferers or victims. This paragraph elaborates on the claim, adding weasel-words like "the scientists say" to shift responsibility for establishing the likely truth or accuracy of the research findings on to absolutely anybody else but me, the journalist. The Particle Zoo: Subatomic Particle plushies.
Please allow about 4-7 days for order completion (not including delivery time). Scientists discover snowflake identical to one which fell in 1963. Nmrdb.org. Dihydrogen Monoxide Research Division - dihydrogen monoxide info. Chemistry World - Interactive Periodic Table. A Collection of Useful Tools and Resources. Chile pepper heat. BBC Two Programmes - Horizon, 2010-2011, Science Under Attack.