ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Weight in air and water, image 2 of 2. This 0.56 kilogram mass is surrounded by water. It is hanging from a newtonmeter, which shows that it has a weight of 3.5 newtons. Weighed in air, its mass was 5.5 newtons. This reduction in weight is due to the upthrust force of water. For the same mass weighed in air, see image A350/192.
Model release not required. Property release not required.