How Many Homes Could You Power With Free Doughnuts?

How Many Homes Could You Power With Free Doughnuts?

Let's say that all the Americans who have a Covid-19 vaccine get (and eat) one doughnut a day.This will give a change in energy of about 10 joules.Power is the rate of energy change.

The Radical Transformation of the Textbook

The Radical Transformation of the Textbook

For several decades, textbook publishers followed the same basic model: Pitch a hefty tome of knowledge to faculty for inclusion in lesson plans; charge students an equally hefty sum; revise and update its content as needed every few years.