Video: Weighing the Earth 2½ Centuries Ago with Ron Macnaughton

Ron Macnaughton has a passion for understanding how scientists in the past were able to accomplish accurate measurements with crude and limited instruments. One of the questions he asked was, how did they measure the mass of the earth over 250 years ago? Weighing the Earth - Part One is the beginning of the answer to that question. Part Two is coming up next and will be linked below when available. Ron, who is a member of the RASC, Toronto Centre, gave his presentation to the the online Recreational Astronomical Night Meeting on August 4, 2021