If we are moving around the Sun at 18.5 miles/second, and Sun moves within the Milky Way at 155 miles/second, while the Milky Way moves within the Local Group at 185 miles/second, which in turns moves towards the Great Attractor at 300-400 miles/second.. so absolute speed of the Sun, measured against microwave background, has been measured to be around 400 miles/second. [see first picture] My question is this. If we are constantly moving, how does it affect our measurements on a molecular level? [see second picture]. Wouldnt it affect all measurements associated with vacuum or quantum mechanical experiments, or even make it impossible to ever achieve absolutely zero? Since if you have velocity then you must have energy associated with it?