The latest episode of Thought Glass tackles the origins of the toothbrush, toothpaste and toilet paper – while also adding a little known anecdote about using urine to make gunpowder.
You’ll notice this episode eliminates the rebus pictogram aspect of the show. I’ve decided that the puzzle was viewed by too many fans as being arbitrary and that focusing on the animations to act as a visual aid to the trivia was more stimulating.
Special thanks to Matthew K. Tabor for his expertise on the gunpowder trivia. Enjoy!