Who's gonna warn Will Robinson now?

Just saw that Bob May, who was inside the robot on Lost in Space passed away. Somewhere in the mathom pile, I have a signed photo of Bob, in costume, fencing with Jonathan Harris (Dr. Smith). A nice guy, and a perennial sight at L.A. area conventions. I'll miss seeing him around.

I don't think this is part of canon...

from the website of Cosmos magazine:

"The formula for gunpowder was likely discovered in the 8th century, although it wasn't until the 13th century that it was first used in canons"