Profile cover photo
Profile photo
Jeremy Buchanan
6,851 followers -
Father, teacher, bookworm
Father, teacher, bookworm

6,851 followers
About
Jeremy's interests
View all
Jeremy's posts

Post has attachment
N Rays: A Case Study in Pathological Science
The first decade of the twentieth century was an exciting time in experimental physics. The recent past had seen major discoveries: Röntgen's discovery of X-rays in 1895, Becquerel's discovery of radioactivity in 1896, Thomson's discovery of electrons in 18...

Post has attachment

Post has shared content
This Will Revolutionize Education

Post has attachment
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.
Animated Photo

Post has shared content
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/

Post has shared content
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  
Animated Photo

Post has shared content
The good news is a vigorous plan of action should hold it down to only half a nice age unit.

Post has shared content
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.
Photo

Post has shared content
Superhero physics is the best physics.
Is Flash faster than Quicksilver?  Here is an analysis based only on evidence from trailers.  

Post has shared content
John Oliver hits it out of the ballpark again -- this time on Net Neutrality. [Warning: Strong Language]
Wait while more posts are being loaded