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rube goldberg machine - Recherche Google

https://www.google.fr/search?hl=fr&sugexp=llsin&gs_nf=1&pq=rube-goldberg+machines&cp=14&gs_id=12&xhr=t&q=rube+goldberg+machine&client=firefox-a&hs=T4n&rls=org.mozilla:fr:official&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&biw=1744&bih=660&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=nHJrT9yLC-nA0QXk-uzSBg#q=rube+goldberg+machine&um=1&hl=fr&client=firefox-a&hs=x6n&sa=N&rls=org.mozilla:fr:official&tbm=isch&fp=1&biw=1920&bih=782&cad=b&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb {"xCoJqT_NAubxqM:":["","","","","354","142","\x3cb\x3eRube Goldberg machine\x3c/b\x3e - Wikipedia, the free encyclopedia","","","450 × 181","","en.wikipedia.org","","","","0",[],"",1,"",[],"https://encrypted-tbn1.google.com/images?q\x3dtbn:ANd9GcS7ODqaEm-02VNKfJHf2ht2WVAvPc16L9fH7Znm2LPp2hEXZAiXXA","","","/search?q\x3drube+goldberg+machine\x26um\x3d1\x26hl\x3dfr\x26client\x3dfirefox-a\x26sa\x3dN\x26rls\x3dorg.mozilla:fr:official\x26biw\x3d1920\x26bih\x3d782\x26tbm\x3disch\x26tbs\x3dsimg:CAESEgnEKgmpP80C5iEkmZX9uSBpAw","Images similaires","450px-Rubenvent.jpg","","/search?
http://www.lesliesartgallery.eu/digitalart/voronoi_fractal.html In mathematics, a Voronoi diagram, named after Georgy Voronoi, also called a Voronoi tessellation , a Voronoi decomposition, or a Dirichlet tessellation (after Lejeune Dirichlet), is a special kind of decomposition of a metric space determined by distances to a specified discrete set of objects in the space, e.g., by a discrete set of points (source Wikipedia ). More details about Voronoi diagrams have been published by Shubhendu Trivedi on his blog Onionesque Reality . Voronoi fractals are created by dressing a Voronoi diagram from some points. Next, more points are added and new Voronoi diagrams are created inside each original Voronoi region. This process is recursively repeated. Frederik Vanhoutte got some spectacular results by programming Voronoi fractals in color.

Leslie's Artgallery : Digital Art - Voronoi Fractal

リードスイッチを用いた、ずっと回り続けるこまです。 岐阜物理サークル でM尾先生に見せてもらい、自分でもつくってみました。 岐阜高校のM田先生 （磁石を分けていただきました。 http://www3.atwiki.jp/cloud9science/pages/101.html#id_916ab122

cloud9science @ Wiki - Sesame interrupteur à lames

http://visiome.neuroinf.jp/?ml_lang=ja

Digital archive for vision science - Visiome Platform

Visiome Platformは、視覚研究に関わるあらゆる情報を収集、公開、補完することを目的とするWebベースのデジタルアーカイブサイトです。アーカイブの対象は、実験データ、数理モデル、錯視図形、視覚刺激生成プログラム、解析用ツールなどです。これらのコンテンツは対応するアイテムに分類され、解説や使用法と共に登録されています。ユーザは登録者の設定した利用規定に従ってコンテンツをダウンロードし、利用することができます。数理モデルでは、論文等に掲載された図を再現するのに必要なモデル記述やパラメータ、シミュレーションプログラムの使い方などが記載されており、シミュレーション実験を容易に追試することができます。錯視図形や視覚刺激生成プログラムなどでは、別サイト（ 錯視カタログ 、 Visitope ）でプレビューを見てコンテンツを確認することもでき、高解像度ファイルをダウンロードする時に本プラットフォームへ誘導する仕組みが備えられています。

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Over the years several mechanical drives have been proposed for various reasons, most importantly to reduce sidewise forces onto pistons or sliding parts with the objective to reduce friction and wear and satisfying constraints imposed by the thermodynamics of Stirling engines. Literally, hundreds of different kinematic mechanisms have been invented over the past centruries, a nice collection of these can be found at Cornell University's Model collection . Follow the link to "Models" and click on any of the 3 collections offered to get a nice menu for all documented models. Look for Straight-line Mechanism ( in particular model S35, Peaucellier ) if you are interested in the conversion from straight-line to rotary motion and back. To first order, two properties of a drive mechanism influence the performance of Stirling engines, the volume amplitude ratio and the phase lag between expansion and compression space. http://mac6.ma.psu.edu/stirling/drives/index.html

Optical Illusions and Visual Phenomena

http://www.michaelbach.de/ot/index.html These pages demon­strate vi­sual phe­nom­ena, and »op­ti­cal« or »vi­sual il­lu­sions«. The lat­ter is more ap­pro­pri­ate, be­cause most ef­fects have their basis in the vi­sual path­way, not in the op­tics of the eye. Em­pha­sis here is on in­ter­ac­tiv­ity and un­der­stand­ing of the vi­sual mech­a­nisms in­volved, to the de­gree they are un­der­stood. Don’t get dis­tressed if you don’t see all the ef­fects de­scribed, even if try­ing care­fully. For many il­lu­sions, there is a per­cent­age of peo­ple with per­fectly nor­mal vi­sion (and char­ac­ter ;-) who just don’t see it, often for rea­sons cur­rently un­known. [Also: like avoid­ing to dry your cat in the mi­crowave, please sim­ply stop if you feel the im­ages are a strain.
... ... If students shall draw the picture of a cube in perspective and you tell them before that all edges of the cube are equal some of them draw the picture on the left. You don't think that this is a good view of a cube.

Cube

http://www.mathematische-basteleien.de/cube.htm
homopolar roller

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Der Mendocino Motor fasziniert, weil er anscheinend unmittelbar Licht in Bewegung verwandelt. Das geschieht völlig lautlos und dynamisch. Der schwebende und sich drehende Rotor ohne sichtbaren Antrieb weckt zunächst die Neugier. Auf diesen Seiten möchte ich verschiedene Modelle des Mendocino Motors vorstellen. Dabei richte ich mich vor allem an die technisch Interessierten, die weder die Zeit noch die Möglichkeit haben, einen Mendocino Motor selbst zu bauen. Denjenigen, denen das Anschauen im Internet nicht reicht und einen eigenen Mendocino Motor besitzen wollen, biete ich die Fertigung der vorgestellten Modelle oder entsprechende Bausätze an. http://www.mendocinomotor.de/1,000000128366,8,1

mendocinomotor

http://science.wao.ne.jp/experiment/recipe.php?contents_no=50762

いろいろな光をみよう！｜「科学に強い子」を育てる ワオ！科学実験ナビ

ろうそくの台と透明シートをつくる ろうそくの炎をみる テレビ画面の色をみる 光源を設置する 電球と蛍光灯の光をみる 印刷用詳細レシピ(PDF:1205KB)

ブラックウォールを体験しよう！｜「科学に強い子」を育てる ワオ！科学実験ナビ

http://science.wao.ne.jp/experiment/recipe.php?contents_no=50438# 工作用紙を切る 偏光板をはる 工作用紙を組み立てる いろいろなものを入れる

Gyroscope.com - gyroscopes, educational toys and gadgets

Ferrofluid in a bottle and supplied with a magnet. Ferrofluid is a black runny fluid.... that reacts to magnetic fields, often changing into seemingly impossible shapes as it tries to maintain the shape of the magnetic field. This gas bottle has ferrofluid which is suspended in a clear fuild allowing you play with the ferrofluid without ever getting messy ! It is mesmerising and strangely very enjoyable to manipulateblack liquid at will. More information about the Tall Bottle of Ferrofluid Magnetic liquid
In February 1975, Deborah Jean Warner, a Curator of Physical Science at the National Museum of American History, called me to ask if Kenyon had any historical physics teaching apparatus. I looked around my office, and reeled off the names of four or five good pieces of apparatus that I was using in my lectures. The next month I was at the Smithsonian, exploring the collection and photographing some of it in black and white and in color. Since then, I have visited and photographed nearly seventy collections of early physics apparatus. This web site displays pictures of about 1850 pieces of apparatus, along with text and references.

Historical Physics Teaching Apparatus

Chris Sangwin's Home Page

Research I am currently a Senior Lecturer in the School of Mathematics . I undertake research in mathematics learning and teaching for the Maths Stats and OR Network , part of the Higher Education Academy . My educational research currently focuses on using computer algebra systems for assessment of mathematics. A practical outcome of this is the STACK computer aided assessment system. My interest in mathematical notation resulted in a project student, Alex Billingsley, creating the DragMath project.
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