Mark Miller

Automobiles in the US haven’t run on leaded gasoline for decades. Why is it taking so long to get the lead out of fuel for small airplanes?

There are few things more reassuring in life than the simplicity of a gridded notebook. The orderly squares associated with our school days promise that knowledge can be neatly condensed into periods and tables, rows and columns; our mornings and afternoons divided into blocks, and our years into quarters.