Clipart tagged: ‘upward’
Forcing-pump
The forcing pump consists of a pump-barrel dipping into water, and having at the bottom a valve opening…
!["Get a lamp-chimney, preferably cylindrical. With a diamond or a steel glass-cutter, cut a disk of window glass a little larger than the cross-section of the lamp-chimney. Pour some fine emery powder on the disk, and rub one end of the chimney upon it, thus grinding them until they fit accurately...place [the chimney] under the water as shown. the upward pressure of the water will hold the disk in place. Pour water carefully into the tube; the disk will fall as soon as the weight of the water in the chimney plus the weight of th disk, exceeds the upward pressure of the water." -Avery 1895](https://etc.usf.edu/clipart/35900/35965/water_press_35965_mth.gif)
Water Pressure Experiment
"Get a lamp-chimney, preferably cylindrical. With a diamond or a steel glass-cutter, cut a disk of window…