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Finding a direction of time in exotic particle transformations Unlike our daily experience, the world of elementary particle physics is mostly symmetrical in time. Run the clock backward on your day and it won't work; run the clock backward on a process in particle physics and things are just fine. However, to preserve certain fundamental aspects of space-time the Standard Model predicts that certain reversible events nevertheless have different probabilities, depending on which way they go. This time-reversal asymmetry is remarkably hard to observe in practice since it involves measurements of highly unstable particles. New results from the BaBar detector at the Stanford Linear Accelerator Center (SLAC) have uncovered this asymmetry in time. Researchers measured transformations of entangled pairs of particles, including the rates at which these transformations occurred. A direct consequence of relativity in particle physics is the presence of three related symmetries, known as CPT: charge, parity, and time.

Shooter, Very Cool Gun-Type Fire Extinguisher Concept Email Have you ever imagined to put the fire off in a cool way? Well, this fire extinguisher design is submitted by Eun Jung Kim might answer your question. From the designers : The bullet has a flexible material surface, when it hits the wall, the “cap” separates from the ‘bullet’ so it can reduce the danger. Designer : Eunjung Kim, Yangwoo Kim, Junyi Heo, and Ha Young Song 7 Superpowered Animal Senses You Won't Believe Are Possible The human imagination is pretty limited when it comes to animal senses. We call people with good vision "eagle eye," and believe that toucan's can smell cereal because they have big noses. It turns out the animal kingdom has plenty of creatures whose senses go beyond what we can conceive without our head exploding. Silvertip Grizzlies Can Smell You From 18 Miles Away (And Across Time) Humans use smell to get us excited about pie before we actually put it in our mouths, and not much else. His nose is a time-traveler. It knows who walked down the street last night at 11PM, what the soles of their shoes were made of, the brand of cigarette they were smoking. ... and tell you Ingrid had a secret admirer last spring when they fixed the sidewalk. Fortunately for the sake of this article, and unfortunately for the sake of everyone who's afraid of bears, the silvertip grizzly's sense of smell is seven times stronger than that of the bloodhound. Jumping Spiders Can See Four Primary Colors Wrong.

Aircraft engine controls Basic Controls and Indicators[edit] Master Switch - Most often actually two separate switches, the Battery Master and the Alternator Master. The Battery Master activates a relay (sometimes called the battery contactor) which connects the battery to the aircraft's main electrical bus. The alternator master activates the alternator by applying power to the alternator field circuit. These two switches provide electrical power to all the systems in the aircraft.Throttle - Sets the desired power level. The throttle controls the mass flow-rate of air (in fuel-injected engines) or air/fuel mixture (in carburetted engines) delivered to the cylinders.Propeller Control - Adjusts the Constant Speed Unit, which in turn adjusts the propeller pitch and regulates the engine load as necessary to maintain the set R.P.M.Mixture Control - Sets the amount of fuel added to the intake airflow. Fuel[edit] If the aircraft is equipped with a fuel pump: Propeller[edit] Cowl[edit] Front view of open cowl flaps

10 Creepy Plants That Shouldn't Exist We spend a lot of time here at Cracked pointing out horrors of nature that slither on the land and lurch through the sea. But staying under the radar in nature's landscape of nightmares is the twisted carnival of things that grow out of the ground. Like ... Bleeding Tooth Fungus The bleeding tooth fungus looks kind of like a wad of chewing gum that leaks blood like a rejected prop from The Shining. They're also called the strawberries and cream, the red-juice tooth, and the devil's tooth. Oh, and they are listed as "inedible," which implies that someone attempted to eat one at some point. Chinese Black Batflowers There's a good reason that Batman uses bat imagery to strike terror into the hearts of Gotham's criminals, rather than, say, some kind of shrew. It is kept as an ornamental plant by gardeners who prefer to cultivate nightmares, and have the balls to live in the presence of a plant that looks like it crawled out of a Bosch painting and wants to plant its young in their head.

Black body As the temperature of a black body decreases, its intensity also decreases and its peak moves to longer wavelengths. Shown for comparison is the classical Rayleigh–Jeans law and its ultraviolet catastrophe. A black body is an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence. A black body in thermal equilibrium (that is, at a constant temperature) emits electromagnetic radiation called black-body radiation. The radiation is emitted according to Planck's law, meaning that it has a spectrum that is determined by the temperature alone (see figure at right), not by the body's shape or composition. A black body in thermal equilibrium has two notable properties:[1] It is an ideal emitter: it emits as much or more energy at every frequency than any other body at the same temperature.It is a diffuse emitter: the energy is radiated isotropically, independent of direction. Definition[edit] Idealizations[edit] Realizations[edit]

Baryon A baryon is a composite subatomic particle made up of three quarks (as distinct from mesons, which comprise one quark and one antiquark). Baryons and mesons belong to the hadron family, which are the quark-based particles. The name "baryon" comes from the Greek word for "heavy" (βαρύς, barys), because, at the time of their naming, most known elementary particles had lower masses than the baryons. As quark-based particles, baryons participate in the strong interaction, whereas leptons, which are not quark-based, do not. The most familiar baryons are the protons and neutrons that make up most of the mass of the visible matter in the universe. Background[edit] Baryons are strongly interacting fermions — that is, they experience the strong nuclear force and are described by Fermi−Dirac statistics, which apply to all particles obeying the Pauli exclusion principle. Baryons, along with mesons, are hadrons, meaning they are particles composed of quarks. Baryonic matter[edit] Baryogenesis[edit]

'Water-Trapped' Worlds: Life Around a Cool Star A new study takes a deeper look into the fate of life-permitting water on Earth-like planets around red dwarf stars, the most common stars in the universe. Many of these exoplanets quickly become "tidally locked," with one side always facing their reddish star while the other side freezes in permanent night. The new research suggests that terrestrial, red dwarf-orbiting exoplanets with significantly less water than Earth might end up with almost all of their water "trapped" on the planet's night side, possibly hurting chances of supporting life in the planet's temperate regions. [See Photos of the Strangest Alien Planets] On the other hand, this water-trapping phenomenon might boost an exoplanet's odds for life by keeping at bay a super-heating, runaway greenhouse effect that would otherwise eventually dry a planet out and doom extraterrestrial life. Red suns and 'eyeball Earths' As many as three out of four stars in the Milky Way and other galaxies are red dwarfs. Whither the water?

Trapping flying qubits in a crystal (and getting them back out) Quantum computers come in many different shapes and forms, but the granddaddy of them all is based on light. This is because it is very easy to create the basic computational unit, called a qubit, from light. The big problem is the memory unit. Light has a pesky habit of traveling quite fast, so by the time you are ready to use your carefully prepared qubit, it is halfway to the Moon, never to return. A pair of research groups, working independently, showed an effective and reliable memory for light-based qubits. There are three key elements that make a quantum computer special: superposition, coherence, and entanglement. If we limit ourselves to light, there are still many possible ways to encode a qubit on a photon. Why was memory so difficult? But memory is a problem. Unfortunately, it's not as simple as sticking a bit of material in the path of the photon and hoping that the photon will be absorbed. No, to store the quantum state, one needs to carefully prepare the material.

Bioenergy Bioenergy Switchgrass crops can be harvested to make biofuels. Credit: Warren Gretz We have used biomass energy or bioenergy - the energy from organic matter - for thousands of years, ever since people started burning wood to cook food or to keep warm. And today, wood is still our largest biomass energy resource. The use of biomass energy has the potential to greatly reduce our greenhouse gas emissions. Biomass Energy technology applications: Biofuels Converting biomass into liquid fuels for transportation. Subscribe Read More Bioenergy News Here Bioenergy News & Information: Additional Resources on Biomass Energy: For more information on biomass feedstocks, see DOE's Oak Ridge National Laboratory Biomass Feedstock Research & Analyses Program. Biomass energy content for this section provided in part by the National Renewable Energy Laboratory and the Department of Energy. Types Of Renewable Energy Stay Connected To register for our free e-Newsletters, create your free account here:

Bussard ramjet Artist's conception of a Bussard ramjet. The heart of an actual ramjet—a miles-wide electromagnetic field—is invisible. Bussard proposed a ramjet variant of a fusion rocket capable of reasonable interstellar spaceflight, using enormous electromagnetic fields (ranging from kilometers to many thousands of kilometers in diameter) as a ram scoop to collect and compress hydrogen from the interstellar medium. High speeds force the reactive mass into a progressively constricted magnetic field, compressing it until thermonuclear fusion occurs. The magnetic field then directs the energy as rocket exhaust opposite to the intended direction of travel, thereby accelerating the vessel. Design discussion[edit] An object's velocity can be calculated by summing over time the acceleration supplied (ignoring the effects of special relativity, which would quickly become significant at useful interstellar accelerations). The top speed of a ramjet-driven spaceship depends on five things: Feasibility[edit]

SSC-Natick Press Release U.S. Army Soldier Systems Center-Natick Public Affairs Office Kansas Street Natick, MA 01760-5012 Contact: Chief, Public Affairs Office (508) Date: March 23, 2006 No: 06-15 Technology transfer highlights through the years at the Natick Soldier Center NATICK, Mass. -- Over the years, Natick Soldier Center (NSRDEC) has researched, developed, and/or co-sponsored numerous technologies and products that have both military and commercial applications. Fibers and Textiles:Gore-Tex. Textile Treatments:Quarpel. Combat Feeding—Rations: Meal, Ready-to-Eat (MRE) Pouch Bread (a shelf stable bread). Food Processing and Packaging Technologies:Food irradiation. Shelters:Braided and Woven Airbeam Technology for Shelter Systems. For more information about the Soldier Systems Center, please visit our website