Robert Frank: Today’s question was posed by my former student Karim Abdallah. “Why,” he asked, “does a light come on when you open the refrigerator but not when you open the freezer?” The cost-benefit ...

It's a common situation: you open the fridge, and the light doesn't come on. So you decide to save the day and just swap in a regular bulb from the junk drawer. But before you do, you should know that ...

Close up shot of a person changing light bulbs - Virojt Changyencham/Shutterstock One of the things you learn as a homeowner is how many different types of light ...

Everyday life is full of strangeness. Why do you drive on a parkway and park on a driveway? Why does the 24-hour convenience store have a lock on the door? Why does the refrigerator have a light and ...

One of the things you learn as a homeowner is how many different types of light bulbs there are. The ones that go into your appliances are quite different from the ones you fit into a lamp or ceiling ...