background preloader

Encyclopedia of Earth

Encyclopedia of Earth

Hispanic Culture - Latino Culture -Latin American Culture Panneau solaire Un article de Wikipédia, l'encyclopédie libre. Un panneau solaire est un dispositif technologique énergétique à base de capteur solaire thermique ou de capteur solaire photovoltaïque destiné à convertir le rayonnement solaire en énergie thermique ou en énergie électrique[N 1]. Présentation[modifier | modifier le code] Types[modifier | modifier le code] On distingue trois types de panneaux solaires : les panneaux solaires thermiques, appelés capteurs solaires thermiques, collecteurs solaires ou simplement capteurs solaires, qui piègent la chaleur du rayonnement solaire et la transfèrent à un fluide caloporteur ;les panneaux solaires photovoltaïques, appelés modules photovoltaïques ou simplement panneaux solaires, qui convertissent le rayonnement solaire en électricité. Dans les trois cas, les panneaux sont habituellement plats, d'une surface approchant plus ou moins le m² pour faciliter et optimiser la pose. Comparaison photovoltaïque-thermique[modifier | modifier le code] Soient et où

AP Chemistry Review Activities AP Chemistry Interactive Review Activities In keeping with the new framework for AP Chemistry beginning in 2013 - 2014, I am indicating here if the topic to which a review activity relates has been dropped from the curriculum. It will be identified as excluded (Excluded) to indicate that the College Board has specifically excluded it. I will leave the reviews here, however, in case some of you find them useful. These are not graded assignments. Each time you reload the activity, the problems will be in a different order, and the answers will be reshuffled!

Save Today and Everyday - Affordable Solar Energy in Maryland 17 Websites That Will Make You Smarter Theory of relativity The theory of relativity, or simply relativity in physics, usually encompasses two theories by Albert Einstein: special relativity and general relativity.[1] Concepts introduced by the theories of relativity include: Measurements of various quantities are relative to the velocities of observers. In particular, space contracts and time dilates.Spacetime: space and time should be considered together and in relation to each other.The speed of light is nonetheless invariant, the same for all observers. The term "theory of relativity" was based on the expression "relative theory" (German: Relativtheorie) used in 1906 by Max Planck, who emphasized how the theory uses the principle of relativity. Scope[edit] The theory of relativity transformed theoretical physics and astronomy during the 20th century. In the field of physics, relativity improved the science of elementary particles and their fundamental interactions, along with ushering in the nuclear age. Two-theory view[edit] History[edit]

How to Download Anonymously (with pictures) Edit Article Edited by Andre Larocque, Lojjik Braughler, Eric, Luv_sarah and 8 others Downloading software has become a stressful task. Ad Steps 1There are many ways to hide ones tracks on the information superhighway. Proxy: A proxy in simple terms is another computer out there somewhere that bounces your connection to where you want it to go. Warnings The best way to avoid being caught is not to do anything illegal. Space Time Travel – Relativity Visualized How to Build Pure Strength by Jim Wendler Just so we're clear, either people want to do 5/3/1 or they don't. I really want to help people, but if they won't take my advice there's nothing I can do. That's fine by me. Look, arguing about strength training theory is stupid. I've been training for 20 years, and this is what I've learned. A Powerlifter's Progress My best powerlifting accomplishment in the 275-pound weight class was a 1,000-pound squat, 675-pound bench press, 700-pound deadlift, and a 2,375 total. Today I have different aspirations. Philosophy 5/3/1 The core philosophy behind 5/3/1 revolves around the basic tenets of strength training that have stood the test of time. Basic Multi-Joint Lifts The bench press, parallel squat, deadlift, and standing press have been the staples of any strong man's repertoire. Starting Light While it may seem counterintuitive to take weight off the bar when the goal is to add weight to it, starting lighter allows you more room to progress forward. Progress Slowly Assistance Work