It floats, thus no physical contact ... except with air.
friction
I never heard of friction reducing friction. You can reduce friction by using lubricants, as well as using wheels (as in ball bearings).
These types of fish alway use MUCUS to cover their body, and to help reduce friction.
A car will have aerodynamic features to reduce forces of friction and drag. A sleek body style will help do this.
Wheels reduces the friction because to improve the speed of the machines. friction can be reduced with the help of the lubricants.
It increases blood flow.
tryt
The most common features in modern cars that help to reduce air friction is the streamlined design of the bumpers and spoilers. The streamlined shape of fast cars also helps to reduce drag.
chalktalcum powdervaselineKY jellyspandex
substances when applied to a surfaces reduce the friction between surrfaces hopes this help;)
cartilage
Maglev trains do not use gas, so they are good for the environment.