A skate can slide over ice because the ice molecules at the surface cannot properly bond with the molecules of the mass of ice beneath and thus are free to move like molecules of liquid water. These molecules remain in a semiliquid state, providing lubrication. It had long been believed that ice is slippery because …
Various grades of steel offer better hardness, rust resistance etc. Bearings with ceramic balls (and races) have been available since the late 1990s, They are lighter and longer lasting, however significantly more expensive. Black silicon nitride ceramic is superior to white zirconium dioxide ceramic, since it is considerably harder and tougher. At the modest rotational …
Freestyle roller dancing is a style of physical movement, usually done to music, that isn’t choreographed or planned ahead of time. It occurs in many genres, including those where people dance with partners. By definition, this kind of dance is never the same from performance to performance, although it can be done formally and informally, …
Dear Parents and and Students – Happy news!! We are now affiliated to Roller Skates Federation of India!!!! Thanks, Futurechampz Team