explainer

May 20, 2011

Bad Bugs of Summer: Carpenter Bees

Our first two posts on the bad bugs of summer were about bloodsuckers: mosquitoes and ticks. We’ll now look at a pest that is a plague on our homes, if not our flesh – carpenter bees. However, in keeping with tradition, this “bad bug of summer” is not a true bug. Why are carpenter bees… 

May 17, 2011

Bad Bugs of Summer: Ticks

In our second post on the bad bugs of summer, we’ll be talking about ticks. Or, as I like to think of them, those bloodsucking disease spreaders. First of all, I really shouldn’t call ticks “bad bugs.” Technically, they’re not bugs at all. Of course, mosquitoes aren’t either. But ticks aren’t even insects. They’re arachnids.… 

May 11, 2011

Bad Bugs of Summer: Mosquitoes

Summer is more than lemonade and swimming pools. It means bug bites – mosquitoes, ticks, horse flies, you name it. This is the first in a series of posts profiling these bad bugs of summer: what they do, why they do it, tips on how to protect yourself, and the occasional trivial factoid. We’re starting… 

Mar 9, 2011

How Magnets Work (It’s Complicated)

Occasionally, when looking for scientific issues to write about, I will survey my friends to see whether they have any “fundamental science” questions that I could explore. When someone recently suggested that I find out how magnets work, I thought it would be easy. I was wrong. First of all, I learned that there are… 

Nov 17, 2010

Thanksgiving Science: Tryptophacts and Tryptophantasies

I was looking for an excuse to write about Thanksgiving science when a friend posed this question: “Can tryptophan be extracted from a turkey and then be injected directly into a human vein via syringe?” Answer: no. But that raised some other interesting questions, like, what is tryptophan? And if tryptophan doesn’t make us sleepy…