| BERNOULLI | He stated the principle that the total energy in a stable fluid system is constant (9) |
| BERNOULLA | He stated that, the total energy in a stable fluid system is constant (9) |
| CAVEATEMPTOR | The principle that the buyer must bear the risk for the quality of goods purchased unless they are covered by the seller's warranty (6,6) |
| NEWTON | He stated the law of gravitation (6) |
| RULEOFLAW | The principle that regulates governments and citizens (4,2,3) |
| CAUSALITY | Principle that there is a reason for everything (9) |
| INCESSANT | Crime grips south. A name is constant. (9) |
| LIGHTNING | Reduction of load after discharge of energy in a flash (9) |
| RADIATION | Nuclear energy in a road, it might appear (9) |
| PERPETUAL | True apple recipe is constant (9) |
| SUSTAINED | Charged about - damage is constant (9) |
| HIBERNATE | Conserve energy, in a way |
| TURBINE | Device that converts the energy in a stream of fluid into mechanical energy by passing the fluid through a system of stationary passages and passages made up of finlike blades attached to a rotor (7) |
| UTILITARIAN | What is a follower of the principle that human conduct should aim to produce the greatest happiness |
| AVOGADROSLAW | The principle that equal volumes of all gases contain the same number of molecules at the same temperature and pressure (9,3) |
| YIN | In Chinese philosophy, the principle that represents the female qualities of darkness and cold (3) |
| KEVINHART | Movie star/friend of 17-Across who appeared on Logan Paul's show on Thursday, during which he stated that 17-Across's condition was steadily improving: "The dope thing is that he's getting better" |
| BOYLE | Who stated the law that the pressure of a given mass of gas is inversely proportional to its volume at constant temperature (5) |
| AXIOM | A universally held principle that nobody joins the team in the morning (5) |
| CAPOTE | 'All literature is gossip' stated the author of Breakfast at Tiffany's and In Cold Blood, Truman ... |
