STEM GROUP – November 2023 Write up

Today we had a talk from Chris Thorpe, this covered the topics below.


So we used a bar of chocolate to work out the speed of light, by putting in the microwave for about a minute. Then measuring the distance between two of the areas that had changed. Using this measurement and the frequency of the microwave, we calculated a figure that is very close to the speed of light.

Result : 294,000,000 m/s -1 Actual : 299,792,458 m/s -1


Side on image of the interferometer.


This image of the interferometer should show a green dot on the paper on the wall. When a liquid is place infront of the laser, the beams trajectory changes due to the refraction of the liquid. .


The results for both experiments are shown here.