Everything needs to be attributed to the movement of matter particles, including thermodynamics to which Lord Kelvin is a great contributor as well as to other disciplines such as fluid mechanics liquid and physical. Then light must have a material and that material will be named ether. Cat that’s what I do I read books I drink wine and I know things poster. The philosophical constraints on materials in the natural world are so great that not only Lord Kelvin but architects of field theory such as Faraday and Maxwell could not escape. This shows how important philosophy plays a role in science.
Or buy at: Store