1、The only thing that matters is the difference in height between point a and point b.
2、These closely reflect the difference in height between men and women.
3、Be sure to vary the height of different flames - no flames remain the same height at the same time and the difference in height gives a greater sense of movement.
4、We do this by finding the difference in height between the source water (Headwater level) and the level of the discharge water from the turbine (the tailwater level).
5、Two types of tidal energy can be extracted: Kinetic energy of currents due the tides and potential energy from the difference in height (or head) between high and low tides.
