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Jeremy Buchanan
Attended Indiana University Bloomington
Lived in Ingalls, IN
7,066 followers|184,808 views
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Jeremy Buchanan

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This is what happens when my little girl gets a hold of the iPad. She takes a bunch of selfies that get backed up to Google+ and auto-awesomed.
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Circle area by rearrangement

A very intuitive visualisation!

A disk is divided into sixteen pie pieces and unrolled along the circumference. The resulting row of spikes is then split in two, one half is rotated and placed interlocking with the other half. Below, another disk is unrolled into a continuous gradient, simulating infinitesimal spikes. It is similarly split, rotated, and merged with the other half.

Source:
http://upload.wikimedia.org/wikipedia/commons/6/64/Pie_Are_Square.gif

#Math   #Mathematics   #circle   #circle_area   #gif   #science   #sciencesunday  
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Jeremy Buchanan

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Superhero physics is the best physics.
 
Is Flash faster than Quicksilver?  Here is an analysis based only on evidence from trailers.  
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John Oliver hits it out of the ballpark again -- this time on Net Neutrality. [Warning: Strong Language]
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Amazing 9 Layer Density Tower - Sick Science! #012

The liquids that weigh more (have a higher density) will sink below the liquids that weigh less (have a lower density). 

Want one you can actually drink? See:
http://www.stevespanglerscience.com/blog/tag/9-layer-density-column/

Original Density Tower below is from: http://www.stevespanglerscience.com/lab/experiments/density-tower-magic-with-science

More details on how to make your own Density Tower:
http://science.wonderhowto.com/how-to/make-amazing-9-layer-density-tower-from-things-found-your-kitchen-0139720/

#scienceeveryday   #geekhumor  
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Probably you would get a cloudy grey mess. The polar liquids (water, alcohol, corn syrup, etc) will mutually dissolve, as will - I think - the non polar oils. The soap will then allow all of it to mix. It's surprisingly stable if you don't agitate it too much though.
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This Will Revolutionize Education
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Tize Yemat yemak the only while can trust you bastard...
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How To Tell If You Are In A Jorge Luis Borges Story: "Everywhere you look, you see a sinister equilateral triangle." http://the-toast.net/2014/07/10/tell-jorge-luis-borges-story/
How to figure out if you're trapped inside a Jorge Luis Borges story.
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The good news is a vigorous plan of action should hold it down to only half a nice age unit.
 
< Prev · Random; Next >; >|. Permanent link to this comic: http://xkcd.com/1379/ Image URL (for hotlinking/embedding): http://imgs.xkcd.com/comics/4_5_degrees.png. Selected Comics. Search comic titles and transcripts: RSS Feed - Atom Feed. Comics I enjoy: Three Word Phrase, Oglaf (nsfw), SMBC, ...
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This is why I emphasize TWODA - Things We Ought to be Doing Anyway. It's fine to ask questions - yes, skeptical ones(!) - about climate change consensus.  But only a fool would refuse to do basic, prudent and sensible precautionary measures, just in case scientists and experts turn out to be right.   

And no, the agenda of (nearly all ) science-friendly folk is NOT to "ruin the economy" or to "shiver and starve in the dark."  TWODA is about investing prudently in energy efficiency -- and after 25 years of delay, the new car mileage standards are working brilliantly.  Efficiency that would save us all money, create energy independence and have scores of other benefits...

...hence the acronym TWODA... Things We Ought to be Doing Anyway... even if climate change were completely wrong!

It is the utter refusal to negotiate even mild versions of TWODA that belies every denialist claim of reasonableness, and exposes it as a raving, anti-science cult.
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At the very least, we should end subsidies for fossil fuels.
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Check this out! It's my favorite thing ever♥
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It turns out that those welfare states, with their generous social benefits, are beating America at job creation hands down.
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Education
  • Indiana University Bloomington
    Physics, 1993 - 1997
  • St. Mary-of-the-Woods College
    Teaching License, 2004
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Father, teacher, bookworm
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We have five children and I'm proud of every one.
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High School Physics Teacher
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Ingalls, IN