LIVE NOW: Senate impeachment trial of President Trump

Wham Cam: Air Conditioning?

The AC is essential to staying cool during the dog days of summer, but just how long has this modern marvel been around? Find out in this week's Wham Cam.

Notice: you are using an outdated browser. Microsoft does not recommend using IE as your default browser. Some features on this website, like video and images, might not work properly. For the best experience, please upgrade your browser.