[masraum]

Originally Posted by gh85carrera

bottom line, there is no technology to actually measure the difference in mass or weight. It should indeed weigh just a little MORE as it is closer to the center of the earth. It is just a mental exercise. No doubt if one knew the precise weight of the ship in dry dock, the weight could be calculated with some fancy math at whatever depth you pick. No one really cares enough to do it, and it is way beyond my math skills.

FiFY

Oh, and mass will not change unless it's converted to energy. Weight is what can/will change, but not by much. Like I said before, at 200,000 kilometers (120,000 miles) above the Earth the weight will still be 94% of what it is at sea level. The weight at the top of Mt Everest will be 0.25% less than the weight at sea level.