What Do YOU Want to Know?

I always enjoy Slate's regular feature called "The Explainer." Readers write in with questions about anything and everything, and the detectives at Slate track down the answers. This edition lists an assortment of questions that Explainer didn't/couldn't/wouldn't answer in 2008. Some I like:

Is it just me, or do all national anthems the world over, no matter how rich and exotic the culture, seem to sound like European marching-band music? Wouldn't one expect China's national anthem be more "plinky"? Shouldn't Iraq's national anthem sound a little more "Arab-y"?
(I wonder this every time I watch the Olympics. Imperialism!)

I live in Washington, D.C., and we have very long escalators coming out of the Metro. If I grabbed the handrail when I first step onto the escalator and did not let go until I was at the top, my body would be almost prostrate across the steps. As I go higher on the escalator, I have to readjust the hand that is grabbing the rubber handrail. Why can't the companies that make escalators sync the steps and the handrails so that they go the same speed?
(I have wondered the same thing)

Hi, I am Anna. I am only 11 years old! My friend told me about this black hole, and I have gotten really scared. I don't want to die! I thought if it didn't happen today, it wasn't going to happen. I did not know nothing about it happening in Spring! I find it unfair that scientists are making a machine that could possibly destroy the entire human race. Me and my friends have cried about the black hole, and I find it really upsetting. There has been barely nothing about it on the news. I am so nervous. I just think I am too young to die—is there any way we could stop it happening?
(Damn scientists! Stop ruining existence for the rest of us!)