Thinking Tech

Big technologies such as aerospace, defense and supercomputing and the systems, infrastructure and innovation that support them.


High-speed rail is worth it

I am an unabashed and thoroughly-committed supporter of high-speed intercity rail as well as a beefed-up budget for Amtrak. Anyone whose taken the Intercity Express trains in Germany, the French TGV, ...


Why you always tilt your solar panels

How long must the payback time be before you get interested in putting solar panels on your roof -- slanted, flat or otherwise?


Solar panel cleaning jacks output

True or false? Solar panels are maintenance free. Wrong! When Google cleaned its solar panels specified to generate 1.6 megawatts, it reaped major gains in output. by John Dodge