“The effects of heat are subject to constant laws which cannot be discovered without the aid of mathematical analysis. The object of the theory is to demonstrate these laws; it reduces all physical researches on the propagation of heat, to problems of the integral calculus, whose elements are given by experiment. No subject has more extensive relations with the progress of industry and the natural sciences; for the action of heat is always present, it influences the processes of the arts, and occurs in all the phenomena of the universe.” ArtProblemActionLawUniverseGivenProcessNaturalProgressInfluenceSubjectsEffectsObjectsTheoryIndustryElementsResearchRelationConstantAidsExperimentsMathematicalAnalysisHeatCalculusNatural SciencePropagationMathematical AnalysisIntegral Calculus Author:Joseph Fourier
“Scientific theories need reconstruction every now and then. If they didn't need reconstruction they would be facts, not theories. The more facts we know, the less radical become the changes in our theories. Hence they are becoming more and more constant. But take the theory of gravitation; it has not been changed in four hundred years.” IfsKnowsNeedsYearsFactsWould BeChangeFourChangedTheoryBecomingHundredConstantRadicalNow And ThenBecoming MoreReconstructionScientific TheoryGravitation Author:Charles Proteus Steinmetz
“What remains constant for me, during the last 15 years, has been the conviction that the cold war was a calamity for the entire world, and that it can be justified by no consideration of theory, nor by any supposed national interest.” WorldYearsHas BeensWarLastsInterestTheoryColdRemainsConstantConvictionConsiderationCold WarJustifiedCalamityNational Interests Author:Earl Browder
“Not only are facts and theories in constant disharmony, they are never as neatly separated as everyone makes them out to be.” FactsTheoryConstantDisharmony Book:Against Method Source: Against Method
“Damn, but science is just a constant feed of cool new facts and theories. Theology doesn't come close.” FactsTheoryConstantTheologyDamn Author:Jerry A. Coyne