Some months ago, I wrote about “Frictionless Learning”. The idea is that too many of us miss opportunities because we can’t get past the friction which we perceive or create in the process of trying ...

Some months ago, I wrote about “Frictionless Learning”. The idea is that too many of us miss opportunities because we can’t get past the friction which we perceive or create in the process of trying ...

I learned to respect friction, as a phenomenon with many nuances, when I was a graduate student. One day, while teaching a problem session in elementary mechanics, I unwisely invented a new problem to ...