Buster Posey Twins Born: Giants Catcher Officially A Dad (VIDEO) Early Sunday morning, San Francisco Giants legendary catcher, Buster Posey, officially became a dad. Posey's wife and high school sweetheart, Kristen, delivered Lee Dempsey Posey (5 pounds, 12 ounces) at 1:52am, and Addison Lynn Posey (6 pounds, 3 ounces) two minutes later at 1:54am. (SCROLL DOWN FOR VIDEO)
Compound light microscopes are one of the most familiar of the different types of microscopes as they are most often found in science and biology classrooms. For this reason, simple models are readily available and are inexpensive.
The most common magnifications used are 20X, 30X and 40X. More magnification is not always better as you see less of the object at higher powers. A coin collector, for example, would want a 10X model and someone who collects sand would want a microscope from 30X-40X. There are three general types of stereo microscopes. Those with a single power (we recommend 20X or 30X), those with two separate powers (we recommend 10x and 30x or 15x and 45x) and Zoom models. Zoom stereo microscopes provide a continuous range of magnifications, from about 10X-40x.