The resultant very low friction ensures exceptionally light stick forces.
The most common class relies on low friction and low surface energies.
Sleds are used for transport on surfaces with low friction, usually snow or ice.
The reduced weight and spring load further help lower friction and improve fuel economy.
For electrons with energy above about 100 eV, however, higher speeds imply lower friction.
It features smooth motion, low friction, high rigidity and long life.
Most sleds are used on surfaces with low friction, such as snow or ice.
First is that there is very low friction between the ice and the sole of your shoe.
They supposed to have smooth surface for low frictions.
For several decades it was common to explain the low friction of the skates on ice by pressure melting.