Who knew an X-ray of a space suit would be this pretty?

(Click on image for larger version).

Via The New York Times.

Century old patents for alternative energy solutions. #awesome

I love this…

Alfred Clark patented a labor-saving brainstorm in 1913 — a churn operated by a rocking chair.

Here’s one solution to the energy crisis: enlist the children. Julius Restein’s “device for operating churns,” patented in 1888, will exercise your kid and produce loads of delicious butter at the same time.

It also works with washing machines.

Both examples courtesy of the awesome futility closet.

When Zombies Attack! Math and medicine (and zombies) combine for interesting epidemiology paper.

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Authors: Philip Munz, Ioan Hudea, Joe Imad, Robert J. Smith.

Reference: Infectious Disease Modelling Research Progress, Chapter 4. Editors: J.M. Tchuenche and C. Chiyaka, pp. 133-150. ISBN 978-1-60741-347-9. c 2009 Nova Science Publishers, Inc.

Abstract: Zombies are a popular figure in pop culture/entertainment and they are usually portrayed as being brought about through an outbreak or epidemic. Consequently, we model a zombie attack, using biological assumptions based on popular zombie movies. We introduce a basic model for zombie infection, determine equilibria and their stability, and illustrate the outcome with numerical solutions. We then refine the model to introduce a latent period of zombification, whereby humans are infected, but not infectious, before becoming undead. We then modify the model to include the effects of possible quarantine or a cure. Finally, we examine the impact of regular, impulsive reductions in the number of zombies and derive conditions under which eradication can occur. We show that only quick, aggressive attacks can stave off the doomsday scenario: the collapse of society as zombies overtake us all.

Link to full paper – here.

At the recruitment office. Wanted: college physics professor #funny

By thejaystack.tumblr.com. Via Fresh Photons.

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