Friday Links: Fireworks, Fourth of July Facts, a Video, Asthma and HIV Treatment

Photo by Sue Pizarro.
Happy 4th of July, U.S. readers. Some holiday links along with the usual health ones for you. Enjoy! I’m off to a barbecue.
Chicago Tribune: How Fireworks Work
20-minutes of fireworks = 50 hours’ programming with music and 3+ days to wire the shells to the computer.
Plus, video clips of each type of firework, […]