The concepts of friction and wear are easy to understand, yet they can interrelate in complex ways within a tribological system (science concerned with interacting surfaces in relative motion ...

Contrary to previous research, severe motion sickness and cybersickness -- a type of motion sickness that stems from exposure to virtual reality -- may be considered the same clinical condition, ...

Some people have gait problems without any changes in their balance. But if a person has trouble with balance, it usually affects their gait and may make it unsteady. Gait refers to the pattern of ...