A Pompeii site reveals the recipe for Roman concrete. It contradicts a famous architect’s writings

Excavations of an ancient construction site in Pompeii have revealed the process of how Romans mixed their self-healing concrete.
The Washington Post

Scientists just figured out how many chemicals enter our bodies from food packaging

Shrink-wrap sealed around a piece of raw meat. Takeout containers filled with restaurant leftovers. Plastic bottles filled with soft drinks. These are just a few types of food packaging that surround ...