21. It's more interesting to consider what would happen if various physical constants were changed. 22. Others however reject the possibility of measuring a change in dimensionful physical constants under any circumstance. 23. It is known that anthropic explanations of the values of some of the dimensionless fundamental physical constants . 24. It is also possible to predict solubility from other physical constants such as the enthalpy of fusion. 25. Freeman Dyson later wrote that Shlyakhter had " revolutionized the subject " of variation in physical constants . 26. The E-ELT will also search for possible variations in the fundamental physical constants with time. 27. For example, I have been working on physical quantity, physical constants and dimensionless quantities lately. 28. The physical constant known as the Rydberg constant is named after him, as is the Rydberg unit. 29. Hence most physicists would not deem it a dimensionless physical constant of the sort discussed in this entry. 30. In some candidate theories, the actual number of independent physical constants may be as small as one.
