8C10.05 - Cosmological Redshift
To demonstrate the apparent redshift (lengthening of wavelength) of light due to cosmological expansion of the universe.
Connect the air supply to an on/off switch. Attach the balloon with the sine wave written on it to the end of the air supply and mount it in a 3-fingered clamp. Be sure to go over the inflation procedure with professor to ensure they do not blow up the balloon.
Turn on air supply. Slowly ramp up speed of air, be aware there is some lag time in response of air supply output. Do not blow up balloon.
Fabric of space/time expansion causes lengthening of wavelength of light -> showing a redshift