How does dry cleaning work?
Dry cleaning is easy: bring your sweaters into a shop, and pick them up a couple days later. But how does dry cleaning work?
What makes a pepper hot?
Peppers come in all shapes, colors, sizes, and flavors. So what makes a pepper hot, and how spicy are the different kinds of peppers?
What’s that blue liquid in a porta-potty?
I’m almost afraid to ask, but what is that blue liquid stuff in the bottom of a portable toilet? If I drop something in it (ewww) is it safe to grab it out?