Content posted in April 2013
Researchers Harvest Energy From Planes
A team of Viennese researchers has come up with a way to harvest energy from airplanes to power sensors attached to a plane’s fuselage that can be used to monitor and collect data on aircraft structural health.
What's the Frequency, Kenneth?
Sherlock Ohms 4/22/2013
It was OK when a radio station ran a tad above frequency limits. But when other radio operators in the area used the station's frequency as a base, things could get crazy.
Hannover Highlights Industry 4.0
The buzz at the recent Hannover Messe 2013 centered on a German industry initiative called “Industry 4.0” that automation suppliers believe will lead to increasing digitization, networking, and an ability for manufacturers to leverage productivity advances.
Screws Mess With Filter Design
Sherlock Ohms 4/18/2013
The filter had more rejection at the low end than at the high end since the equivalent capacitance coupling did not provide a transmission at high frequencies.
The Power Factor
Sherlock Ohms 4/16/2013
Post-lunch power surges caused a world of problems at a high-tech defense firm.
Video: Man-Sized Jellyfish Robot to Patrol the Seas
Engineers at Virginia Tech have built a jellyfish robot prototype the size of an adult man they say will one day patrol the seas to monitor environmental conditions, study aquatic life, make maps of the ocean's floors, and perform military surveillance.
The Least-Obvious Signals Sometimes Bite You
Sherlock Ohms 4/15/2013
When is a digital circuit not a digital circuit? When somebody forgot that ultimately everything is an analog circuit, and things like L, R, and C combine in the most insidious ways to derail a design.
The term “range anxiety” began fading into the rear view mirror recently, as major automakers made announcements about longer-range, battery-powered cars.
George Leopold's talk at last week's Design & Manufacturing Minneapolis helped restore astronaut and engineer Gus Grissom's role in the beginnings of NASA, and outlined how Grissom played a pivotal role in winning the Space Race.
The Department of Energy has developed a new thermal-energy storage system for solar energy so it can be used at night.
Digital signal processors are gaining momentum in applications from voice activation to sports watches to holographic computing.
Your cat demands to be fed on time. With some technical know-how and a 3D printer you can build your own automated cat food dispenser.
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