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"Generating electricity is not only inefficient, it also makes pedal power less sustainable, less robust and more costly. To begin with, batteries have to be manufactured, and they have to be replaced regularly. This requires energy, which can completely negate the ecological advantage of pedal power. According to this research paper (pdf), the embodied energy of a 150Wh lead-acid battery (like the one offered with the Windstream pedal power generator) is at least 37,500 Wh, which equals 250 full charges of the battery (more sources: 1/2). In other words: if you can deliver 75 watts of power to the battery, you have to pedal for 500 hours in order to generate the energy that was needed to manufacture the battery. Because the life expectancy of a lead-acid battery can be as low as 300 discharge/charge cycles (sources: 1/2), you are basically pedalling to produce the energy required to manufacture the battery. If you also factor in the embodied energy of other electronics and parts, the ecological advantage of a pedal powered generator connected to a battery becomes rather doubtful. It might costs more energy than it delivers."

"Generating electricity is not only inefficient, it also makes pedal power less sustainable, less robust and more costly. To begin with, batteries have to be manufactured, and they have to be replaced regularly. This requires energy, which can completely negate the ecological advantage of pedal power. According to this research paper (pdf), the embodied energy of a 150Wh lead-acid battery (like the one offered with the Windstream pedal power generator) is at least 37,500 Wh, which equals 250 full charges of the battery (more sources: 1/2). In other words: if you can deliver 75 watts of power to the battery, you have to pedal for 500 hours in order to generate the energy that was needed to manufacture the battery. Because the life expectancy of a lead-acid battery can be as low as 300 discharge/charge cycles (sources: 1/2), you are basically pedalling to produce the energy required to manufacture the battery. If you also factor in the embodied energy of other electronics and parts, the ecological advantage of a pedal powered generator connected to a battery becomes rather doubtful. It might costs more energy than it delivers."

"Today, getting what you need is as easy as a trip to the store. From food to clothing, energy, medicine, and so much more, Andy George will discover what it takes to make everything from scratch. His mission is to understand the complex processes of manufacturing that is often taken for granted and do it all himself. Each week he's traveling the world to bypass the modern supply chain in order to harvest raw materials straight from the source. Along the way, he's answering the questions you never thought to ask."

"Today, getting what you need is as easy as a trip to the store. From food to clothing, energy, medicine, and so much more, Andy George will discover what it takes to make everything from scratch. His mission is to understand the complex processes of manufacturing that is often taken for granted and do it all himself. Each week he's traveling the world to bypass the modern supply chain in order to harvest raw materials straight from the source. Along the way, he's answering the questions you never thought to ask."

"What does that mean exactly? It means you play in a multiplayer world that has the possibility of being permanently destroyed, resulting in server-wide perma death. What's more, the reason it's destroyed would be the players' own fault. It's not that different from our own world in that way. "This ecosystem is your only lifeline in a race against time." It works like this: a new server is started, and players enter at the beginnings of civilization. There's a world-destroying cataclysm looming, like a drought or a flood or a meteor heading for the Earth, several real-time weeks away. In order to prevent that catastrophe from happening, you need to build a civilization and advance technology and resources to the point that the crisis can be averted. However you're not alone in this world. Besides the other players, you'll be sharing the world with a detailed wilderness simulation full of plants and animals. They simulate 24 hours a day, living out their lives with or without human interaction, growing, feeding and reproducing. Together they form an ecosystem rich with resources, resources that you must use to survive and develop a civilization."

"The Fairphone is a modular handset designed with repairability and ethical sourcing of its materials as headline features. It sold 60,000 units. Amazingly, for what sounds like a nerd-phone, almost half of those buyers had never owned a smartphone before. Now the Fairphone 2 is launching, and with a totally-new, in-house design. The new phone is even easier to repair, and because it was wholly designed by the FairPhone team, its supply chain is even more responsible than ever. The Fairphone is thicker than the latest iPhone or Samsung flagship, but that's the point. Instead of packing everything into a tiny case and keeping it there with glue, the Fairphone is designed to be taken apart. The lightweight magnesium frame supports modules that can be easily replaced by the user. "We have designed it with an aim to last three to five years, looking at making it robust and modular-for repairability," says Fairphone's chief communications officer, Tessa Wernink. "Obviously how long it lasts depends quite heavily on the user, so what we as a company are doing is offering an ecosystem around the phone that supports long-lasting use, first-hand or second-hand." Inside the case (itself one of several options) you'll find the core unit, containing all the chips and radios; a replaceable battery pack; a display that can be snapped off and replaced without any tools (not even a screwdriver); a receiver unit, which contains the front camera, sensors; the headset connector and microphones; a speaker/vibrator unit; and a camera module. These modules are designed to balance manufacturing complexity with repairability. For instance, the display comes as a standalone unit, but less-vulnerable components are bundled into one module. The camera, which people are most likely to upgrade as better versions become available, is also housed in its own module. That way you don't need to toss out your whole phone just to get a better camera. "In fact, the motto from the maker mo

"Lets you customize the minimum and maximum tab width. Set the minimum width to 1 in order to let tabs shrink infinitely."

"Our new blog is designed to radically reduce the energy use associated with accessing our content. Low-tech Magazine was born in 2007 and has seen minimal changes ever since. Because a website redesign was long overdue - and because we try to practice what we preach - we decided to build a low-tech, self-hosted, and solar-powered version of Low-tech Magazine. The new blog is designed to radically reduce the energy use associated with accessing our content. Why a Low-tech Website? We were told that the Internet would "dematerialise" society and decrease energy use. Contrary to this projection, it has become a large and rapidly growing consumer of energy itself. In order to offset the negative consequences associated with high energy consumption, renewable energy has been proposed as a means to lower emissions from powering data centers. For example, Greenpeace's yearly ClickClean report ranks major Internet companies based on their use of renewable power sources."

"To revert the current ecological overshoot and build a sustainable society, we have to collectively engage in changing our economic model. "Sufficiency: moving beyond the gospel of eco-efficiency" suggests introducing hard limitations to unsustainable trends-in particular to overconsumption-and putting emphasis on distributional justice. Seven chapters written by sustainability and economics experts plus a foreword by Janez Potočnik (Co-chair of the International Resource Panel and former European Commissioner for the Environment) shed light on different angles of sufficiency and formulate concrete recommendations to EU policy makers. The booklet ends with a discussion of several eco-social policies that can start the transition towards an "economics of enough". Many new ideas for an economic paradigm shift have been developed and discussed at the academic and grassroots levels in recent years. The aim of this booklet is to build on a rich body of knowledge and bring these ideas to the attention of engaged citizens and policy makers in order to advance the debate on how to implement sufficiency."

"Contents:Notebook of Leonardo da Vinci ('The Codex Arundel'). A collection of papers written in Italian by Leonardo da Vinci (b. 1452, d. 1519), in his characteristic left-handed mirror-writing (reading from right to left), including diagrams, drawings and brief texts, covering a broad range of topics in science and art, as well as personal notes. The core of the notebook is a collection of materials that Leonardo describes as 'a collection without order, drawn from many papers, which I have copied here, hoping to arrange them later each in its place according to the subjects of which they treat' (f. 1r), a collection he began in the house of Piero di Braccio Martelli in Florence, in 1508. To this notebook has subsequently been added a number of other loose papers containing writing and diagrams produced by Leonardo throughout his career. Decoration: Numerous diagrams. "

"In order to help reduce the gap between industrialized countries and those in the emerging economy, UNESCO has decided to adopt an Open Access Policy for its publications by making use of a new dimension of knowledge sharing - Open Access. Open Access means free access to scientific information and unrestricted use of electronic data for everyone. With Open Access, expensive prices and copyrights will no longer be obstacles to the dissemination of knowledge. Everyone is free to add information, modify contents, translate texts into other languages, and disseminate an entire electronic publication."

"Choice Eliminator will eliminate options from a multiple-choice, list, or checkbox type of question. Choice Eliminator is designed for light use only, and may be unreliable when multiple people are taking the form at the same time. Use Dropdown type of questions instead of multiple choice for better reliability. Choice Eliminator will eliminate options from a multiple-choice, dropdown, or checkbox type of question. Great for signing up for time slots or having students choose topics without doubling up. Version 2 uses spreadsheet functions to keep the results up-to-date, besides being more reliable when using limits, this allows you to restore eliminated choices and set the order."

"The Stanford Prison Experiment (2015) Esta película está basada en una historia real que tuvo lugar en 1971, cuando el profesor de Stanford Dr. Philip Zimbardo creó lo que se convirtió en uno de los experimentos sociales más impactantes y famosos de todos los tiempos: en unos días fue capaz de convertir a un grupo de ciudadanos de clase media en gente sádica por un lado y víctimas sumisas por otro. Director Kyle Patrick Alvarez Actores Ezra Miller, Tye Sheridan, Billy Crudup Duración 122 min País USA "

"Das Experiment (2001) La vida esta llena de terribles sorpresas, El experimento es una de ellas. Narrada con una frialdad itinerante, el film cuenta la historia de la investigación que un grupo de científicos hacen de un grupo de veinte voluntarios corrientes de la sociedad (un taxista, un quiosquero, un empleado del aeropuerto, etc.), dividiéndolos entre presos y carceleros, obligándoles a comportarse como tales, durante un periodo de catorce días. La idea es estudiar el comportamiento humano cuando en algo tan sencillo como un juego a uno se le da mucho poder sobre el otro. El resultado es El experimento, filmado por el novel realizador alemán Oliver Hirschbiegel, a partir del libro homónimo de Mario Giordano, inspirado en unos supuestos hechos reales con estudiantes en la universidad de Stanford por el Dr. Philip Zimbardo. El resultado es asolador. Director Oliver Hirschbiegel Actores Moritz Bleibtreu, Christian Berkel, Oliver Stokowski Duración 114 min País Germany "