My sperm swimming under a microscope
I have a microscope with up to 400x magnification, and I like to watch my sperm swim under it. I bought a digital camera that hooks into the microscope that captures the video to my computer. Works pretty well, and it wasn't too expensive. It's fascinating to watch sometimes, and it's amazing to think there's 200 million of these little guys swimming around in each ejaculation. I feel bad when they all *****.