What are the best blogs, online periodicals, or discussion groups that address the history and consumption of food in an intelligent and critical way? (In other words, not just a place to swap recipes.) I would love to know where people find the most engaging ideas about food.
When did grain threshing become steam-powered? [more inside]
How far can corn pollen drift in the wind? 1 mile? 10 miles? [more inside]
Do you know good sources for historical mathematics images, specifically the Bridges of Königsberg by Leonhard Euler? [more inside]
What was a "Modern European Hotel" in the US in 1920? [more inside]