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Ben LaChance
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nerding out.
+PopSci just shared this awesome chart comparing the sizes of space ships from Science Fiction. Given our recent survey, you may enjoy this: http://dirkloechel.deviantart.com/art/Size-Comparison-Science-Fiction-spaceships-398790051
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This is maybe the coolest thing I've ever see.
Parametrized curves for toy locomotion. Pretty cool. (via The Kid Should See This)

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The AHS Sikorsky Prize for a human powered helicopter flight lasting at least 1 minute, at least 10 feet in the air, with a point on the helicopter contained within a 30ft by 30ft box, was claimed just under a month ago... and here's a video from the team that won:

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"As a whole, Congress has never been more diverse, except the House majority. There are 41 black members of the House, but all of them are Democrats. There are 10 Asian-Americans, but all of them are Democrats. There are 34 Latinos, a record — and all but 7 are Democrats. There are 7 openly gay or lesbian members, all of them Democrats.

Only 63 percent of the United States population is white. But in the House Republican majority, it’s 96 percent white. Women are 51 percent of the nation, but among the ruling members of the House, they make up just 8 percent. (It’s 30 percent on the Democratic side.)"

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Okay, this is just... awesome.
And I don't even like baseball.
What a brilliant study, by http://fanaticscomic.com/ , showing that this pitcher doesn't telegraph his very different throws (in placement and speed) with his initial motion. (via kottke)
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This.... is freaking awesome.
What our solar system looks like from a non-fixed perspective...

#space   #science   #astronomy   #gif  
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Lololol
This Jeff Weintraub creation is really comprehensive.
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Allen Knutson's sharing lead me to this...  He always finds the most interesting things.  My best decision on G+ was to follow him :D
Homological algebra is a widely applicable area of algebra that is concerned with such things as exact sequences, commuting diagrams and homology groups.  Many of the basic results of homological algebra can be proved by a technique known as "diagram chasing", and one of the most well known results of this type is the Snake Lemma.  According to Charles Weibel's excellent book on homological algebra, the best proof of the Snake Lemma can be found in the following clip from the 1980 film "It's My Turn", featuring the late Jill Clayburgh as the professor.

It is often the case in films that actors are unable to fake certain activities in such a way that the situation seems plausible to someone who knows how to do the activity.  A good example of this is when actors pretend to play musical instruments; the results are often embarrassing.  However, the professor in this scene does an excellent job, and I would have to prepare my teaching carefully to explain the proof as well as she does.

It's My Turn (1980) Snake Lemma

#mathematics  

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