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I really enjoyed 'The power of constructive ridicule' editorial (July 8). This idea can be useful and highly educational when properly and judiciously applied as you have described. Sadly, it [...]

I applaud your recent editorial regarding the infrastructure modifications needed for the power grid to 'run backward' when (and if) too many people get solar panels on their roofs ('A [...]

Dear Bob: I designed magnetic stripe readers in the eighties and would like to comment on your recent 'Bob's Mailbox.' * Three tracks are defined on the standard card. Most […]

Several letters to the editor are presented in response to the articles "Off-road electric drives gain traction," in the April 24, 2008 issue, "The engineering extremists mind set," in the April 24 issue and "Engineers of Jihad," on engineering and terrorists.

Presents letters to the editor referencing to articles and topics discussed in previous issues of the periodical "Machine Design." "The Power of Constructive Ridicule," which discussed the impact of constructive ridicule on science and technology; "Putting Together a High-Tech Garage Band," which discussed high technology musical instruments; "Missing the Point," which focused on sending work offshore U.S.