Hereís a gun that can light up an unplugged fluorescent bulb or spark electrical storms in an unplugged incandescent bulb ó the same effect as a plaza globe.
Richard Morrow of Cheshire, England, built the Tesla Coil plasma gun using the casing of an inexpensive cordless hand drill. He uses the trigger of the hand drill as the plasma gunís trigger. The device is powered by a 12V battery. The high frequency, high voltage from the gun causes the argon gas in light bulbs to become ionized, which creates streamers that are attracted to the fingers holding the bulb.
The low power means the plasma arcs are limited in size. The interference created by this wireless energy can also cause electric devices to switch on and off as well as making the devices behave erratically. Morrow says several improvements could be made on the design that could provide greater power and thus greater arcs.
Earlier this year paralyzed IndyCar drive Sam Schmidt did the seemingly impossible -- opening the qualifying rounds at Indy by driving a modified Corvette C7 Stingray around the Indianapolis Motor Speedway.
Wearables are changing the way we see ourselves. With onboard sensors that have access to our bodies, we are starting to know our physical selves like never before, quantifying our activity, our heart rate, breathing, and even our muscle effort.
Last week, the bill for reforming chemical regulation, the TSCA Modernization Act of 2015, passed the House. If it or a similar bill becomes law, the effects on cost and availability of adhesives and plastics incorporating these substances are not yet clear.
This year, Design News is getting a head start on the Fourth of July celebration. In honor of our country and its legacy of engineering innovation -- in all of its forms -- we are taking you on an alphabetical tour through all 50 states to showcase interesting engineering breakthroughs and historically significant events.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.