Shadow zone is an area where seismograph can not be detect earthquake after the seismic wave have passed through the earth. When earthquake strikes, seismic wave radiate out spherically from the earthquake's epicenter. At the angular distances of 104 degree to 140 degree from the earthquake focus, any direct P waves are not received.
Questions about bending over after Hip replacement. I just read in another thread a reminder of not bending over for 6 weeks after surgery. It has prompted this question. I guess I should ask the PT, but I'd also like input from folks who have been there. First, let me tell you about my job.
Even a high-quality bar will have a very slight bend when 225 pounds or more is loaded on the bar and the bar is racked in the bench. This presents no problem during a workout. However, if you leave that weight on the bar every hour of every day, over the course of a few weeks the bar can bend and weaken.