One-way mirror A one-way mirror, one-way glass, or two-way glass is a mirror that is partially reflective and partially transparent. When one side of the mirror is brightly lit and the other is dark, it allows viewing from the darkened side but not vice versa. Design The optical properties of the mirror can be tuned by changing the thickness of the reflecting layer. The glass is coated with, or has encased within, a thin and almost-transparent layer of metal (usually aluminium). The result is a mirrored surface that reflects some light and is penetrated by the rest. The Science Channel ... Largest Sky Map Revealed: An Animated Flight Through the Universe. The first public data release from BOSS, the Baryon Oscillation Spectroscopic Survey. Led by Berkeley Lab scientists, the Sloan Digital Sky Survey's BOSS is bigger than all other spectroscopic surveys combined for measuring the universe's large-scale structure. The Third Sloan Digital Sky Survey (SDSS-III) has issued Data Release 9 (DR9), the first public release of data from the Baryon Oscillation Spectroscopic Survey (BOSS).
Chemists work to desalinate the ocean for drinking water, one nanoliter at a time By creating a small electrical field that removes salts from seawater, chemists at The University of Texas at Austin and the University of Marburg in Germany have introduced a new method for the desalination of seawater that consumes less energy and is dramatically simpler than conventional techniques. The new method requires so little energy that it can run on a store-bought battery. The process evades the problems confronting current desalination methods by eliminating the need for a membrane and by separating salt from water at a microscale. The technique, called electrochemically mediated seawater desalination, was described last week in the journal Angewandte Chemie. The research team was led by Richard Crooks of The University of Texas at Austin and Ulrich Tallarek of the University of Marburg.
100 Facts About DNA by Dr. Hsien-Hsien Lei Posted August 20, 2007 in DNA Fun, DNA in General I’m on vacation this week but that doesn’t mean Eye on DNA is going to be silent. I’ve prepared posts in advance and figured this list of 100 facts about DNA should keep you busy! Nuclear fusion milestone passed at US lab 7 October 2013Last updated at 17:25 ET By Paul Rincon Science Editor, BBC News website The achievement is the first of its kind anywhere in the world Researchers at a US lab have passed a crucial milestone on the way to their ultimate goal of achieving self-sustaining nuclear fusion. Harnessing fusion - the process that powers the Sun - could provide an unlimited and cheap source of energy. But to be viable, fusion power plants would have to produce more energy than they consume, which has proven elusive.
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A Graphic Biography of Darwin by Maria Popova The evolution of the father of evolution, illustrated. Charles Darwin — father of evolution, decoder of human emotion, hopeless romantic, occasional grump — was born on February 12, 1809. From Smithsonian Books comes Darwin: A Graphic Biography (public library; UK) — a fine addition to outstanding graphic nonfiction, joining other famous graphic biographies of cultural icons like Richard Feynman, Hunter S. Thompson, The Carter Family, and Steve Jobs. Written by journalist Eugene Byrne and illustrated by cartoonist Simon Gurr, the story takes us into the life and times of Darwin — from a curious child on a “beeting” expedition to a patient young man persevering through the ups and downs of battling creationist oppression to a worldwide legend — tracing his intellectual adventures amidst the fascinating scientific world of the 1800s.
Molten air – a new class of battery The molten air batteries combine useful characteristics from existing types of batteries © Shutterstock Scientists from the US have invented a new type of battery. The so-called ‘molten air batteries’ have among the highest electrical storage capacities of all battery types to date. Inexpensive batteries with better energy storage densities are needed for many applications.