That’s the question, Mr. President!

A beautiful speech by Ted Kennedy about republican’s reluctance in increasing the minimum wage from $5 to $7.50 over 10 yrs. At one point he goes off and asks, “What’s price?… When does the greed end?…” to Senate Republicans as they once again try to block the first minimum wage increase in 10 years.

Today, Ted was diagonized with brain tumor following suffering a seizure two days ago.

Forcing synchronization

This simple demo by a student from Lancaster University, stopped me to think.
It’s about forcing synchronization into periodic systems through coupling crossover.

Below is also the excerpt from Christiaan Huygen’s work who first observed this synchronization between loosely coupled pendula (on 1665).

Tags: oscillation, physics