I weigh 307.65g at CERN, Geneva.
This result is consistent with what I would expect from my previous results. SNOLAB, Canada was a similar latitude and my weight only differs 0.02g between these 2 locations. Compare the results on my map.
The closer I am to the equator, the less I should weigh. The velocity of the Earth’s spin at the equator is 1,670km/hr. This counteracts the force of gravity by up to 0.3%. Also because of the equatorial bulge I will be further from the centre of our planet. The further apart 2 objects are, the weaker the gravitational attraction will be between them. I really should visit Kenya, Indonesia or Ecuador and take a control reading exactly on the equator.
The man in the photographs who is helping me to conduct my experiment is Mick Storr, Head Of Education and Outreach at CERN. A great host who seemed as pleased to meet me as I was to meet him.
The location for this experiment was the actual Control Room for the Large Hadron Collider. The scientists stopped working to watch my weigh in. I hope that they didn’t miss the Higgs boson while they were turned away from their screens!
Some of these images are © 2012 CERN. Usage rights are here