Jake and Louise are engaged!

This Saturday Jake proposed to Louise and they are now engaged. At dinner on Saturday, Louise was given a picture of the engraved message and then Jake asked her hand in marriage.

The proposal was laser engraved using the femtosecond laser in the photon factory. The spot size used was 4 microns and the whole engraving was 100 microns high, about the thickness of a human hair.

 

Pendulum wave

Peter the head engineer in the lab built a nice demonstration of wave motion in a multi-pendulum set-up where each pendulum has a different period leading to a 50s cycle. We are planning on building a larger demo which should reduce the frictional effects for the shorter period pendulums.

For a good write up on the physics behind this demo and how to make your own go to this link

A computer generated demo that helps you hear the patterns.

Congratulations to Sarah Thompson from the photon factory for getting into the finals of the 3min thesis competition.