Enter information in left column; select appropriate menus. Click Calculate. To calculate net kcalories expended subtract Calories of activity that otherwise would have been performed from Calories of activity actually performed. [Example: 230 kcal (Walking) - 50 kcal (Sitting) = 180 net kcalories expended] 1 Calorie = 1 kcalorie = 4.18 kjoules.
A utility locator uses maps, schematics, and hand-held electronic devices to identify underground utility lines. He or she marks points with paint or flags to inform construction workers and homeowners of their exact locations.
To find lost valves and buried wires, the Model 521a Valve and Wire Locator operates on the null principle. When the receiver is immediately to the left or right of a buried wire, it emits a strong beeping signal. Directly over the wire, the signal falls off. This is the null, or absence of signal.