There is a range of topics from The Curse of the Black Pearl a pantomine for the Cambridge Young Astronomer section to the tecnical detail of CAT Scanning the universe with Quasar Light and even a trawl through the centuries of Astronomic Invention in Steam Powered Astronomy which even includes a telescope main mirror of a rotating bath of mercury driven by a steam engine. (The Association goes loco driving once a year when not in lockdown)
A quick click on the links and a glimpse of the intro gives a fair idea of what to expect with each talk. They are always intended to be both informative and amusing.
regards Martin