properties of deep water waves

• for gravity waves: short waves aren't fast.
• for capillary waves: really short waves are fast. this means there is a minimum at at . Impacts at less than do not excite waves.
• for gravity waves,
• for capillary waves, . There is a minimum and .
• surfing is best on the first day.

source psfile jl@crush.caltech.edu index water_wave