U3A online events is featuring a Zoom talk on Chichester Practical Science group . A free event by zoom Friday 10th April at 2 pm.
Bookable with the link below .
The Physics of Sound
March Practical Science Group
With the buzzing of the bees and the chirping of birds heralding the onset of spring the practical science group met to study the physics of sound. The session was run by Steve Niebel who brought along an exciting array of oscilloscopes and screens .The main experiments were visualizing sound waves turning them into its constituent frequences into a graphical digital display on a screen .Various members played musical instruments from dinner gongs to cymbals.
We also tested our hearing frequencies and noted that our more musical members had significantly better hearing . We also used a transducer attached to an oscilloscope to time reflected sound waves to accurately measure the dimensions of the room .
Next month we will all be trying to make simple electric motors and and generators from rotating magnets.
Later on in the summer we will be moving on to biology with mothing and botany.