Name _________________. Overview. In this activity, you will study the effects of gravity on the planets of the Solar System. First, you need to view movies from the lunar Apollo missions, then calculate your weight on other planets. Finally, you will propose your weight on newly discovered planets around other stars.
A tracheostomy is an opening cut into the windpipe, or trachea. It is used as an airway for breathing. After the opening is made, a small tube is inserted to let air in, and to attach a breathing machine (mechanical ventilator) if needed.
How Is a Vasectomy Done? The surgeon makes a small cut in the upper part of the scrotum, under the penis, and then cuts, ties, or blocks the vas deferens. Youâll get your surgical cuts stitched up and go home right away. Some men get a no-scalpel vasectomy, which uses very small holes instead of cuts and doesnât require stitches.