But randomly bombarding a surface with reactive molecules does not offer fine control over the growth process; it is akin to trying to build a wristwatch using a sand blaster. We want the chemical reactions to occur at precisely the places on the surface that we specify. A second problem is...
In a process somewhat reminiscent of spray painting, we build up layer after layer of diamond on a surface by holding that surface in a cloud of very reactive molecules and atoms -- like H; CH3, C2H, etc. When these reactive molecules bump into the surface they change it, either by ...
Do not drag steel ropes and hoisting tools or bump hoisted objects against hard objects during hoisting. Using Ladders Use wooden or fiberglass ladders when you need to perform live working at heights. When a step ladder is used, ensure that the pull ropes are secured and...
With dimensions of 152.7 x 69.9 x 8.1mm, and a weight of 180g, this phone isn’t going to stretch your palm or give your wrist a workout. We found it easy to get our digits around it and touch the power button and volume rocker on the right edge. (Image credit: Future) Helping ...
In certain embodiments, sensors on the robot can measure, for example: battery state of charge; voltage; amperage; tilt/inclination and bump sensing; cliff detection; wall following; yaw-angular rate to detect slippage and enhance odometry; motor currents; and flipper position. The robot can have...
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