Ever wonder how a toaster knows when something is done? Does it pop it up regardless? Does it really care if you pick "Light" or "Medium" or "Dark"?| HowStuffWorks
Espresso, cappuccino, latte, double latte, double mocha latte... Espresso drinks have become coffee-shop staples all over the world. Watch us take apart an espresso machine!| HowStuffWorks