Medicine has come a long way since the days of using leeches to heal people. Magnetic resonance imaging (MRI) machines are one of the greatest marvels of medical science, and the way they work is something out of a sci-fi movie.

If you have basic PhotoShop needs but not a PhotoShop budget, Pixlr can help fill that gap. The free program allows you to crop, resize, filter, adjust colors and even retouch photos at a beginner to intermediate level. A new version of the web-based program has even been designed to look more like PhotoShop’s interface.

How much do you know about history? This free online game gives you a random historical event and challenges you to guess what year it happened. How long will you be able to hang on? It's surprisingly challenging. We love the thrill, and we know you will, too.

That space in your living room might be the perfect spot to add a high-resolution image of your home or favorite place on Earth. We've found a web tool that takes incredible satellite images of Earth that would be a great gift or even to place on your wall. We'll explain how to get one of these fabulous photos.

You can hear my show this weekend on 430+ top radio stations throughout the United States, streaming in your favorite radio app, and available as a podcast you can listen to any time at GetKim.com.