Natural Gas Natural gas is a fossil fuel formed when layers of buried plants, gases, and animals are exposed to intense heat and pressure over thousands of years. The energy that the plants originally obtained from the sun is stored in the form of chemical bonds in natural gas. Natural gas is a nonrenewable resource because it cannot be replenished on a human time frame.[1] Natural gas is a hydrocarbon gas mixture consisting primarily of methane, but commonly includes varying amounts of other higher alkanes and even a lesser percentage of carbon dioxide, nitrogen, and hydrogen sulfide.[2] Natural gas is an energy source often used for heating, cooking, and electricity generation. It is also used as fuel for vehicles and as a chemical feedstock in the manufacture of plastics and other commercially important organic chemicals. Natural gas is found in deep underground rock formations or associated with other hydrocarbon reservoirs in coal beds and as methane clathrates. Sources[edit] Natural gas[edit]
Phone Charger Uses Crystal Orbs to Focus the Sun's Rays | Wired Design A $149 solar smartphone charger called Beta.ey features a ball lens and minuscule multi-junction solar cell that can charge a smartphone one and a half times per day. RawLemon The theory underlying the project is that gleaming crystal globes can concentrate diffuse sunlight, or even moonlight, onto a tiny, hyper-efficient photovoltaic cell. The crystal ball is paired with a dual-motion tracking system that keeps the sun's energy focused on the cell throughout the day. The hope is that these innovations will make solar power a practical solution in parts of the world where it's previously been a non-starter. Ball lenses are a novelty in solar power, but they are commonly used as a coupling tool in laser-based applications, endoscopes, and barcode scanners. In order to prove out the concept and generate investment he has put the principle to work in consumer product form. Pigments would add color to the globes, but slightly reduce their efficacy. Inspiration Strikes
Biofuel A biofuel is a fuel that contains energy from geologically recent carbon fixation. These fuels are produced from living organisms. Examples of this carbon fixation occur in plants and microalgae. These fuels are made by a biomass conversion (biomass refers to recently living organisms, most often referring to plants or plant-derived materials). This biomass can be converted to convenient energy containing substances in three different ways: thermal conversion, chemical conversion, and biochemical conversion. Bioethanol is an alcohol made by fermentation, mostly from carbohydrates produced in sugar or starch crops such as corn, sugarcane, or sweet sorghum. Biodiesel can be used as a fuel for vehicles in its pure form, but it is usually used as a diesel additive to reduce levels of particulates, carbon monoxide, and hydrocarbons from diesel-powered vehicles. Liquid fuels for transportation[edit] First-generation biofuels[edit] Ethanol[edit] Biodiesel[edit] Other bioalcohols[edit]
Creating Plastic Out of Thin Air Newlight Technologies co-founder Mark Herrema shows off AirCarbon pellets | Image credit: Dan MacMedan/USA TODAY We’re hearing more and more often about inventive new ways companies are turning waste into valuable resources — from turning everything from CO2 and methane gases to human and food waste into fuels, and plastic into bacteria-battling “ninja polymers.” This week USA Today explored another breakthrough — a process that extracts carbon molecules from methane gas and turns them into plastic. California-based startup Newlight Technologies is using captured methane gas from dairy farms and turning it into AirCarbon, a durable and versatile plastic that can be used in everything from furniture and food containers to auto parts. "I wish I had been smart enough to figure this out," William Dowd, former global director of industrial biotech research and development at Dow Chemical, told USA Today.
Types of Alternative Energy 8 inventions techno-écolo ! Des végétaux très au courant Produire de l’électricité avec… de la mousse ! C’est ce qu’ont réalisé des designers et scientifiques de l’université de Cambridge. www.cam.ac.uk Romain Dondelinger Diplômé de l'École Française de Journalisme (EFJ) et après plusieurs expériences dans des chaînes de télévision, Romain s'envole pour l'Australie. Article(s) sur le même sujet L’hybride sur le toit Produire de l’électricité verte ou avoir de l’eau chaude, pourquoi choisir ?
Hydrogen Hydrogen gas was first artificially produced in the early 16th century, via the mixing of metals with acids. In 1766–81, Henry Cavendish was the first to recognize that hydrogen gas was a discrete substance,[8] and that it produces water when burned, a property which later gave it its name: in Greek, hydrogen means "water-former". Industrial production is mainly from the steam reforming of natural gas, and less often from more energy-intensive hydrogen production methods like the electrolysis of water.[9] Most hydrogen is employed near its production site, with the two largest uses being fossil fuel processing (e.g., hydrocracking) and ammonia production, mostly for the fertilizer market. Hydrogen is a concern in metallurgy as it can embrittle many metals,[10] complicating the design of pipelines and storage tanks.[11] Properties Combustion 2 H2(g) + O2(g) → 2 H2O(l) + 572 kJ (286 kJ/mol)[note 2] H2 reacts with every oxidizing element. Electron energy levels Main article: Hydrogen atom Phases
Led Mushroom par Yukio Takano Des champignons dans une maison, un bureau … c’est jamais très bon signe. Sauf quand il s’agit de champignons que l’on dirait tout droit sortis d’un conte fantastique et qu’ils sont destinés à illuminer votre bureau. Le designer japonais Yukio Takano a imaginé un concept eco-design de lampe de bureau dénommé Led Mushroom. Portant un certain intérêt aux champignons, Yukio Takano a réalisé cette série de lampes à la fois amusantes et très réalises représentant des champignons poussant sur des souches de bois. Les champignons sont réalisés en matière synthétique et sont incrustés de LED pour offrir une petite lumière d’ambiance. Auteur : Fabien Fondateur de BuzzEcolo, je suis devenu blogueur un peu par hasard.
Nuclear Energy Nuclear energy usually means the part of the energy of an atomic nucleus, which can be released by fusion or fission or radioactive decay. Nuclear energy may also refer to: Innovative Wind Turbine Smaller Than a Penny Could Power Your Smartphone Researchers at the University of Texas at Arlington have developed a renewable energy technology smaller than our smallest form of currency, yet capable of charging smartphones. The micro-windmills designed by electrical engineering professor Dr. J.-C. Chiao and research associate Smitha Rao are so tiny that a single grain of rice could hold about 10 of them, according to a news release from the university. “Imagine that they can be cheaply made on the surfaces of portable electronics,” Chiao said, “so you can place them on a sleeve for your smart phone. “When the phone is out of battery power, all you need to do is to put on the sleeve, wave the phone in the air for a few minutes and you can use the phone again.” Taiwanese fabrication foundry WinMEMS Technologies is exploring ways to commercialize the turbines. At its widest point, one of the micro-turbines measures 1.8 millimeters. Chiao said the technology’s deployment could be extended to home energy.
Geothermal Enegry From hot springs, geothermal energy has been used for bathing since Paleolithic times and for space heating since ancient Roman times, but it is now better known for electricity generation. Worldwide, 11,400 megawatts (MW) of geothermal power is online in 24 countries in 2012.[5] An additional 28 gigawatts of direct geothermal heating capacity is installed for district heating, space heating, spas, industrial processes, desalination and agricultural applications in 2010.[6] Geothermal power is cost effective, reliable, sustainable, and environmentally friendly,[7] but has historically been limited to areas near tectonic plate boundaries. Recent technological advances have dramatically expanded the range and size of viable resources, especially for applications such as home heating, opening a potential for widespread exploitation. Geothermal wells release greenhouse gases trapped deep within the earth, but these emissions are much lower per energy unit than those of fossil fuels. History
un papier imprimable par jet d'eau - News Santé: Sciences Environnement Pour éviter le gaspillage d'encre et de papier, une équipe de chercheurs chinois a mis au point un papier réutilisable à volonté sur lequel on imprime au jet d'eau. A lieu du jet d'encre, l'impression fonctionne à jet d'eau.Image: (photo d'illustration)/Reuters Signaler une erreur Vous avez vu une erreur? Merci de nous en informer. Veuillez SVP entrez une adresse e-mail valide Partager & Commenter Votre email a été envoyé. Après l'imprimante à jet d'encre, voici venue l'ère de l'imprimante à jet d'eau. Malgré l'omniprésence des écrans, le papier joue encore un rôle prépondérant dans notre vie quotidienne, en particulier dans les entreprises. Il en résulte un important gaspillage d'encre et de papier, avec un fort impact pour l'environnement. Qualité suffisante D'après les essais réalisés dans leur laboratoire, l'impression reste lisible pendant 22 heures dans des conditions normales, ce qu'ils jugent «suffisamment long pour permettre une lecture temporaire». Réduction des coûts