Protein dynamics are essential for their functions. Protein nanomachines made of multiple protein molecules are highly dynamics during their actions on their functional targets, sometime called ...

You know that two surfaces mate, but what is a friction clutch or brake? Using friction has been the most popular way to engage and stop loads since the 1800s. Surfaces interact with ...

SANTA BARBARA, Calif. — To evade friction, try taking a quantum shortcut. Two teams of physicists are building tiny machines designed to operate with the maximum possible efficiency. According to ...

• Excessive seal friction wastes energy, accelerates wear, and can lead to premature failure. • Too little friction makes a seal prone to leak. • Pressure-activated hydraulic seals minimize both ...