Мерц резко сменил риторику во время встречи в Китае09:25
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Leonardo da Vinci is usually credited with conducting the first systematic study of friction in the late 15th century, a subfield now known as tribology that deals with the dynamics of interacting surfaces in relative motion. Da Vinci's notebooks depict how he pulled rows of blocks using weights and pulleys, an approach that is still used in frictional studies today, as well as examining the friction produced in screw threads, wheels, and axles. The authors of this latest paper used an experimental setup similar to da Vinci's.
Контракт на сумму 186 миллионов долларов предполагает поставку усовершенствованных аппаратов Switchblade 600 Block 2 и Switchblade 300 Block 2.