Depending on the weight and distribution of the load in the hull, ballast tank systems either flood or empty the distributed tanks. This “trimming” generates counterweights on demand, keeping the ship ...
Ever noticed the bed of small stones beneath railway tracks? These seemingly ordinary rocks play a crucial role in keeping trains running safely and smoothly.
When you are waiting for a train and look at the tracks from the platform, you can see gray stones packed tightly around the ...
The WattControl HID electronic ballast yields energy savings up to 40% in 400W HID fixtures, according to the company. Weighing less than 6lbs, the electronic ballast functions at temperatures 50% to ...
A ballast for a fluorescent lamp has two primary functions: Provide high initial voltage to start the lamp; and regulate lamp current during operation. Common electronic ballasts convert 60-Hz line ...
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