Weighing in at 307.73g at SNOLAB, Sudbury, Canada.

Latitude: 46.4374355

Longitude: -81.1465397

The surface reading is lighter than I had estimated for this latitude based on my previous results. I really need to travel further North again at some point to take more readings.

I took another reading 2km underground in the world’s deepest laboratory at SNOLAB. I weighed in at 307.63g, 0.1g lighter than at the surface.

So why do I weigh 0.1g less 2km underground?

Well, there is 2km less of rock under my feet pulling me in, so the gravity is not as strong here. But also there is 2km of rock above me pulling me slightly up with its gravity, so this will also slightly reduce my weight. Gravity in both directions.

Want a guaranteed way to lose weight? Travel 2km straight down. I could market this as the Gnome Diet. The only downside is the one and a half hour lift journey!

At 2km deep, SNOLAB is the world’s deepest underground laboratory facility. It is an unbelievable privilege to be visiting such an important site for the physics world. I believe I am the first gnome ever to visit this facility, 1 to me Charlie!

Experiments conducted at Sudbury Neutrino Observatory (SNO) laboratory are subject to precise conditions. The lab is a class 2000 cleanroom which has very low levels of background radiation and dust, note my hairnet (no suitable beardnets were available).

Because the lab sits under 2,070m of rock, it is shielded from cosmic rays. This gives scientists a low-background environment in which to conduct experiments requiring high sensitivities and extremely low counting rates. The accuracy of some of the equipment here is fascinating, I cannot wait to tell Albert all about it when I get back to Germany.

Externally the original SNO detector is an incredible and elegant piece of precision science engineering. I hear that the inside looks like a Buck Rogers space disco, but I didn’t get to enter it this time.

Thanks to my host Samantha for showing me around the facility. It was extremely educational, but we also had some fun. Although I’m not so sure about this candid photo of me after a shower! 

Thanks to the Discovery Channel for featuring the Gnome Experiment on their Daily Planet show. 

I am a gnome of few words and don’t like talking to cameras. So Chris Jillings, a Research Scientist from Sudbury Neutrino Observatory took an eloquent lead in describing the Gnome Experiment.

The interview features a televised weighing. A new experience for me. Eagle eyed viewers might notice a quick flash of pride cross my face during the close-up.

Watch the feature from 3 minutes 40 seconds here