“ Unfortunately, solid booster It's sad to see NASA adhering to the big solid boosters. Definitely second-rate technology. Vibrate like you... (read full comment) ” 

Posted on May 4, 2009 at 4:55 PM EDT

“ Racetrack memory Racetrack memory is not only not new, it is the oldest! UNIVAC used an "acoustic mercury delay line": ... (read full comment) ” 

Posted on March 10, 2009 at 12:01 PM EDT