The conversation between human and AI assistant.
Does 'empty' space have mass which is displaced by matter?
Is there any way to detect or measure this background energy?
Well, scientists have developed a number of experiments to try and probe the properties of the vacuum. One example is the Casimir effect, which measures the attractive force between two closely-spaced metal plates in a vacuum. Another is the Lamb shift, which measures tiny variations in the energy levels of hydrogen atoms caused by interactions with virtual particles in the vacuum. While these effects are incredibly small, they provide important insights into the nature of the vacuum and its role in the universe.