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Lighting in Blender Internal Part I : Basics
une page sur la lumière ... dans blender
Canyousea | La Turbovoile®
principes de la turbovoile ... passages eseentiels
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rotors Flettner appliquant l’effet Magnus. Un phénomène physique décrit par le physicien Heinrich Gustav Magnus qui explique la trajectoire courbe — d’une balle de tennis liftée ou d’un ballon (bien tiré) lors d’un coup-franc au football — d’un objet en rotation.
De quoi s’agit-il ? En tournant, l’objet en rotation (balle ou cylindre) va modifier par son frottement la vitesse du courant d’air qu’il traverse : d’un côté, l’air sera accéléré donc la pression va diminuer ; côté opposé, l’écoulement de l’air est freiné et la pression augmente. Résultat : une différence de pression qui crée une force variable selon la vitesse de rotation, et dirigée de la faible pression vers la haute.
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la portance, créée par le passage d’une aile d’avion ou d’une voile de bateau dans un flux d’air. Mais, de la même manière qu’un rotor d’hélicoptère en rotation donne une portance forte à des pales de surface réduite, un mât cylindrique tournant délivre beaucoup plus de portance qu’un mât-aile même prolongé d’une voile. D’où l’idée des rotors Flettner.
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50 Terrific Twitter Tutorials for Teachers | Online Colleges
but to know what's the use of 140words for nothing else to give away thoughts ...
How to Cure Fatigue | eHow.com
this is a dedicated site for howto's , simple steps, you enjoy or .. ? but very easy to understand
Home Power Magazine: Solar | Wind | Water | Design | Build
about to build your self wind electricity, that's there too ,, solar and other engines ...
wikiHow - The How-to Manual That You Can Edit
but for what ? ... yyeeaaah for all !
when the deocratic wiki will be THE solution !
Free World Order - Visual Concept Map - Think and Do Something Different!
self made people, but also how to be well with yourself too ? ... some good tricks, tips, ideas in concepts...
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The
Ten Core Concepts of Freedom Technology:
Thanksgiving Special: 26 Websites Web Designers are Thankful For | Design And Marketing Blog
yeah well known sites...
Simpleology WebCockpit
this is when you're in ... a simple sort of dashboard of "what to do do " to evolve in your life, some simple tasks to complex ones, but always in a direct manner ...
5min - Find the best how to, instructional and DIY videos – Life Videopedia
a sum up of do it yourself... many easy tricks but some useful too...
Inventgeek.com - Your source for inventing and reinventing projects
some good DIY (do it yourself) projects about cool things or not... ;)
DIY LCD Video Projector Plans, Designs, Instructions - DIY Projector Company (DPC)
4 models to be built ... from tested ones ... choose
DIY Projector Guide - Part 2 - Assembly - Lumenlab
do it yourself projectr DIY (?) ... the project ...
Projectors | Lumenlab
about a DIY self made projector ... a little cnc mill ... and then to build..
Amazon.com: Build Your Own Electric Vehicle: Seth Leitman, Bob Brant: Books
how about building your electric car ....
Are You Throwing Away Your Best Content Ideas? | Copyblogger
this a great part of article fro spreading ideas with some good tools ...
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How to get the most value out of your best post ideas
Squidoo : Explore Lenses
it's clear easy and neat, very short... a sort of specialized blog, with all for all.. sharing ideas and howtos...
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Squidoo is the world's most popular site for building free, single pages about your passions.
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