Physics, Astronomy and Space

Why Didn’t We Know the Russian Meteor Was Coming? 15 February 2013
Baumgartner’s leap 4 October 2012
Why Johnny Can’t Add Without a Calculator 25 June 2012

Technology is doing to math education what industrial agriculture did to food: making it efficient, monotonous, and low-quality.
How and why graphing calculators, educational software, interactive whiteboards and the like undermine actual learning in elementary, middle and high schools.
[Slate]

“Privatizing” Space 16 May 2012

Companies Shoot for the Stars, but Uncle Sam Still Pays the Bills
Why the false dichotomy of public versus private isn’t the real story with SpaceX’s launch. What really matters is competition.
[Zocalo Public Square]

NASA needs one “highest priority” not 16 of them 1 February 2012

More numbers, more problems
The flaws of a new National Research Council report on what direction NASA should take
[Slate]

Promise me the moon 31 January 2012

The emotional appeal of Gingrich’s space policy
The Republican presidential candidate wants to build a base on the moon. So do I.
[Huffington Post]

Phobos-Grunt, grunt. 11 January 2012

The U.S. Didn’t Shoot Down Russia’s Mars Probe. But It Could Have.
Strange accusations from the head of Russia’s space programme, and why they matter.
[Slate]

String theory 5 January 2012

The art and science of making violins
I spent some time with Tom King, a violinmaker in Fayetteville, Arkansas. He uses a combination of craftsmanship and technical analysis to make great-sounding, and beautiful, instruments. He once took several million dollars worth of violins to the hospital to get CAT-scanned.
[Stanford Magazine]

The 40-year itch 5 October 2011

How to build a really awesome spaceship, maybe
Would-be space explorers, scientists, and a couple of crackpots gather at DARPA’s 100-Year Starship Symposium to try to get interstellar travel unstuck.
[Slate]

Salvaging space 1 September 2011

Cleaning up low-Earth-orbit debris might lead to new space technologies.
Why problems are sometimes useful to have.
[Slate]

Weapons in space 16 August 2011
Looking for ET 25 February 2010

Signs of life
As the search for alien life turns 50, its practitioners find new methods

Nuclear forensics 25 February 2010

A weighty matter
How to analyze smuggled uranium

Better engines 18 November 2004

The sparks fly
Electric propulsion for spacecraft

A costly failure 21 October 2004

D’oh!
Why the Genesis probe crashed