Earth is made up of huge tensions kept in check (for the most) with gravity. Remove that …
Riding In an airliner: moving a 400+ mph at 35k feet you might end up in orbit. The researchers in the International Space Station would go careening off into space likely to never be returned to earths orbit.
Please don’t!
Probably plane
that guy who is cleaning the external windows of burj khalifa
Nuclear power plant