The upheaval caused by the substitution of steam for human muscles was the most formidable revolution mankind had ever experienced. The engines, of course, were not able to think for themselves, and they needed a certain number of human attendants to feed them and tend them and tell them when...
While you don’t need a degree in anatomy and biomechanics to build your chest with bench presses, knowing which muscles are involved in this exercise and how they work could help you choose the right variation for your needs and goals. With that in mind, these are the primary and secondar...
you can’t really execute a solid spinal arch on the incline bench, which would reduce your range of motion. Secondly, the technique of most incline presses will shift some of the demand away from your pecs and towards smaller muscles like your shoulders and triceps. ...
and the second piece to the first. The first piece was set just high enough so that when it swung out horizontally from the cabinet door, the second piece would swing down from the first, just touching the ground, and so serving as a support for the first piece of the wood. This crea...