Cosmology – 27th July 2006

Roger O’Brien’s talk on “Cosmology“ was a conversational journey from the Steady State Theory to the Big Bang Theory, with reference to the discovery of the Cosmic Background Radiation, and a practical demonstration of the kinds of measurements needed to … Continue reading

Spectroscopy – 22nd June 2006

Jack Martin made use of slides, laser pointers, and diffraction gratings to illustrate his talk on “Spectroscopy“. By shining both a green and a red laser pointer through the same grating he demonstrated the spectral spreading a grating produces, and … Continue reading