 I'm Ira Flato. When did you first get captivated by science? Astronaut Leland Melvin says his interest was sparked literally when his mother gave him a chemistry set. You know, I created this explosion, I burned her carpet, she ran in the room, and, you know, I got a spanking, but my brain was activated to science. Activate your brain to science on Science Friday from WNYC Studios. Fridays from noon to 2 on 88.9 FM KWC.