Robert Ian Henderson Profile Topics Started Replies Created Engagements Favourites Search topics: Topics Engaged In Viewing 6 topics - 1 through 6 (of 6 total) Topic Voices Posts Last Post Cosmic Ray – Raspberry Pi Geiger Counter Started by: Nick Francis in: Radio Astronomy 6 11 2 months ago Robert Ian Henderson Watec 902H2 Ultimate giveaway Started by: Dominic Ford in: Meteors 5 6 1 year ago Mr Robert Charles Murrell Life, don’t talk to me about life 1 2 Started by: Dr Paul Leyland in: Venus 14 30 3 years, 5 months ago Jeremy Shears Planisphere for demonstrating precession of the equinoxes Started by: Dominic Ford in: Computing 6 10 5 years, 3 months ago Robert Ian Henderson New book on The Moon Started by: Dawson in: Moon 8 15 6 years, 1 month ago Lars Lindhard Inspirational astronomy books Started by: Dawson in: General Discussion 14 14 7 years, 11 months ago Robert Ian Henderson Viewing 6 topics - 1 through 6 (of 6 total)