The Relationship between a Circle and its Radius

The Circle and its Radius are definitely in a relationship, but it’s not complicated. Here is a simple .gif that explains it perfectly.

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11 Magnificent Wonders of the Ice World

Not a math post, but cool nonetheless:

gZPRv

In polar and other cold regions there are ice, snow and water formations that are unusual, unique, and some of them so beautiful to breathtaking. Most of these wonders of nature can be visited only by scientists and rare adventurers who are ready for significant physical and financial exertions. Because of their volatility and locations, these formations can be seen only at certain periods of the year.

Thanks to Bole982 for this submission!

Source: http://www.theworldgeography.com/2012/11/ice-world.html

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Maths Dingbats

mathsdingbat34

This is one of my favourite maths dingbats (quite an easy one!) It’s one of over 50 maths dingbats on the website – some easy, some pretty tough.

Source: http://ibmathsresources.com/mathsdingbats/

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undergrads

math

Thanks to anon for this submission!

Source: http://cheezburger.com/6729645312

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Science Jokes Made Easy

Let’s face it. Not all since jokes are easy to understand. Have no fear! Here some of the most common scientific notions which you might come across in a joke.

Physics 1: Newton’s first law states that a body in motion remains in motion and a body at rest remains at rest unless acted upon by an unbalanced force.

General/Miscellaneous 1: Asymmetry sounds like “a cemetery”. Asymmetry in physics and mathematics is a lack of symmetry. Something is symmetric if it is unchanged when transformed. For example, a sphere has rotational symmetry because if you turn it, it looks the same.

Physics 23: The half-life of a radioactive substance is the time it takes for half of it to decay away. Ordinary cats are said to have 9 lives, so the issue is whether a radioactive cat has 9 or 18 half-lives.

Biology 12: The word “staph” is an informal version of staphylococci, a type of spherical parasitic bacteria that bunch together in irregular masses.

Physics 35: According to special relativity, the length of an object decreases as the speed of the object increases.

Chemistry 14: The symbols for carbon, holmium, cobalt, lanthanum and tellurium are respectively C, Ho, Co, La and Te.

Chemistry 22: K is the symbol for potassium.

Chemistry 21: H2SO4 is sulfuric acid. Presumably, Susan drank acid instead of water.

So next time you see a sciency joke, you should understand it, K?

For more go to jupiterscientific.org

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Imagine If and Only If

ImagineIff

Thanks to Annalee for this submission!

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Square root of 2 = 2

With my YouTube-Video I will demonstrate that “2 = Square root of 2″. Where is the mistake? In spite of the fact that the text of this proof is written in German, you could understand it without knowledge of this language.

Thanks to Ortmar Buss (ojbuss) for this submission!

Source: http://www.youtube.com/watch?v=RWCbNHo3Tdo

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Movie poster

xxcrY2n[1]Do you know what movie this represents?

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Graphing the Sine Wave

Math is beautiful and if someone doesn’t agree, you can just show him this magnificent gif.

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The Pardoner’s Puzzle

Are you ready for another brain teaser? You’re in for a treat.

The gentle Pardoner […] produced the accompanying plan, and said that it represented sixty-four towns through which he had to pass during some of his pilgrimages, and the lines connecting them were roads. He explained that the puzzle was to start from the large black town and visit all the other towns once, and once only, in fifteen straight pilgrimages. Try to trace the route in fifteen straight lines with your pencil. You may end where you like, but note that the omission of a little road at the bottom is intentional, as it seems that it was impossible to go that way.

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