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Time dilation special relativity and twins paradox explained
posted March 21 2011 20:48.34 by Giorgos Lazaridis

A very interesting theoretical video from Sixty Symbols! According to Einstein's special relativity, if person A is on earth, while person B is in an ultra fast rocket that can...

[Link: Sixty symbols]
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Tags: physics   science   unsolved mystery   theory/tutorial   geometry/mathematics   

Drilling non circular holes with the help of geometry
posted March 10 2011 21:24.01 by Giorgos Lazaridis

I happen to like geometry for many reasons. Today, i stumbled upon this excellent video from core77. Using a geometrical construction named "Reuleaux Triangles", it is possible to...

[Link: core77]
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Tags: how it works   geometry/mathematics   theory/tutorial   tips   mechanical   

This is how Pi (you know, 3.141592653589...) sounds like!
posted March 9 2011 22:06.52 by Giorgos Lazaridis

From the scientific point of view, this video is rubbish. But from the artistic point of view, i must admit that it has some interest. Youtube user michaeljohnblake corresponded...

[Link: michaeljohnblake]
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Tags: geometry/mathematics   games and fun   artistic   music   

This DIY exoskeleton is so freaking awesome (and green!)
posted March 8 2011 21:23.13 by Giorgos Lazaridis

Skeletonics, this is the name of this project that was presented by two students. This amazing exoskeleton uses only mechanical parts and needs of no extra means of powering...

[Via: popsci]    [Link: dannychoo]
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Tags: robot   physics   diy   mechanical   exoskeleton   crazy designs   geometry/mathematics   

How far is our moon?
posted March 5 2011 20:47.54 by Giorgos Lazaridis

The distances in the universe are gigantic, some times human imagination is unable to understand them. Moreover, our sun is huge compared to us. So, in order to make a chart of our...

[Link: 1veritasium]
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Tags: geometry/mathematics   space related   experiments   

Math problem animation with six spheres
posted February 14 2011 6:56.58 by Giorgos Lazaridis

ElicaTeam has a great collection of geometrical video animations. One of them is labeled as "Rolling Spheres Illusion", but i would rather call it simply "Rolling Spheres", as it is...

[Link: ElicaTeam]
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Tags: theory/tutorial   animation   science   games and fun   geometry/mathematics   

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