MLive16 小时
Crossing Mackinac Bridge today? Avoid metal grating during high wind warning
The Mackinac Bridge Authority is directing motorists to use the outside lane, which allows them to avoid driving on the metal ...
Nature4 年
The power stroke of the swinging cross-bridge model, via myosin-actin cycling
The model shown is that of H. E. Huxley, modified to indicate bending (curved arrow) near the middle of the elongated cross bridge (subfragment 1, or S1) which provides the working stroke.