Measuring flow with ultrasonic signalsThese battery-powered flowmeters have no moving parts, using transit-time ultrasonic technology, where two flow sensors alternately transmit and receive a signal and "time of flight" measures flow rate. There is very little pressure loss and no filtration is needed. Both 150-lb ANSI and DIN flange styles come in many sizes, with either integral or remote electronics to display flow rate or total. Prices start at $1,752. OMEGA Engineering Inc.http://rbi.ims.ca/4928- 602
The amount of plastic clogging the ocean continues to grow. Some startling, not-so-good news has come out recently about the roles plastic is playing in the ocean, as well as more heartening news about efforts to collect and reuse it.
Some of our culture's most enduring robots appeared in the 80s. The Aliens series produced another evil android, and we saw light robot fare in the form of Short Circuit. Two of the great robots of all time also showed up: The Terminator and RoboCop.
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.