**With apologies to Jean-Paul Sartre.***- Cornell Transformative Humanities Series*, April 23, 2016

# Einstein's First Proof (PDF)→

/**The style of his boyhood Pythagorean proof portends something of the later scientist.***- The New Yorker, *November 19, 2015

# Why Pi Matters (PDF)→

/**Why do mathematicians care so much about pi?***- The New Yorker, *March 13, 2015

# Taking Rides With Strangers→

/**Can sharing taxis change the world?***- The Huffington Post, *September 2, 2014

# Could You Park Safely on the World’s Steepest Street?→

/**Help from a little high school physics and trigonometry***- The Huffington Post, *August 22, 2014

# The 3 Most Confusing Things Your Math Teacher Ever Told You→

/**Help for those still befuddled by things that came up in math class***- The Huffington Post, *December 13, 2012

# Visualizing Vastness→

/**Shrinking the solar system down to size***- The New York Times, *October 15, 2012

# Dangerous Intersection→

/**Catastrophe theory, sleep, and the economy***- The New York Times, *October 8, 2012

# It’s My Birthday Too, Yeah→

/**The day Johnny Carson met the birthday problem***- The New York Times, *October 1, 2012

# Proportion Control→

/**The myth and math of the golden ratio***- The New York Times, *September 24, 2012

# Friends You Can Count On→

/**Why your friends have more friends than you do***- The New York Times, *September 17, 2012

# Singular Sensations→

/**Cowlicks, fingerprints, and index theory***- The New York Times, *September 10, 2012

Einstein's boyhood proof of the Pythagorean theorem foreshadows the scientist he later became.

- The New YorkerNovember 19, 2015