Inspiration from History: Design in the Wilderness

I am often inspired by design triumphs in history, but there is one design that has particularly influenced me. It is a humble design: an odometer made from wood for covered wagons that was never put into mass production. Part of what makes it interesting is that it was done under harsh conditions with the goal to help other people and it would become a legendary part of an epic exodus and the settlement of the Western United States.

How Many Samples Do I Need? Determining Sample Size for Statistically Significant Results

Anyone who has designed anything -- whether that be a new medicine, a design method, or even a new recipe -- has faced the question: “Is this better than what I had before?” If you’re just deciding whether or not you like a new recipe, getting an answer is straightforward. If you are in an academic or industrial setting you must also answer an even more important question: “Can I prove that this is better?”