Meter Gauges Work in Bread-Slice Units (May, 1938)
Why is there a basketball team watching the girl ride? And also, doesn’t almost one slice per minute seem a bit high?
Meter Gauges Work in Bread-Slice Units
How rapidly exercise uses up the energy in the food you eat is graphically demonstrated by a device called the “bread-o-meter” at the Franklin Institute in Philadelphia, Pa. When a visitor mounts a bicycle frame and pedals vigorously, a generator produces electricity in proportion to his effort, and figures on a board show how many slices or loaves of bread would be needed to furnish this energy.