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Potentiality and actuality
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In philosophy, potentiality and actuality are a pair of closely connected principles which Aristotle used to analyze motion, causality, ethics, and physiology in his Physics, Metaphysics, Nicomachean Ethics, and De Anima.
A marble block in Carrara. Could there be a particular sculpture already existing in it as a potentiality? Aristotle wrote approvingly of such ways of
A marble block in Carrara. Could there be a particular sculpture already existing in it as a potentiality? Aristotle wrote approvingly of such ways of talking, and felt it reflected a type of causation in nature which is often ignored in scientific discussion.
Gottfried Wilhelm von Leibniz, the source of the modern adaptations of Aristotle's concepts of potentiality and actuality.
Gottfried Wilhelm von Leibniz, the source of the modern adaptations of Aristotle's concepts of potentiality and actuality.
Energy
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In physics, energy is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J).
A plasma globe, using electrical energy to create plasma, light, heat, movement and a faint sound
A plasma globe, using electrical energy to create plasma, light, heat, movement and a faint sound
In a typical lightning strike, 500 megajoules of electric potential energy is converted into the same amount of energy in other forms, mostly light en
In a typical lightning strike, 500 megajoules of electric potential energy is converted into the same amount of energy in other forms, mostly light energy, sound energy and thermal energy.
Thermal energy is energy of microscopic constituents of matter, which may include both kinetic and potential energy.
Thermal energy is energy of microscopic constituents of matter, which may include both kinetic and potential energy.
Thomas Young, the first person to use the term "energy" in the modern sense
Thomas Young, the first person to use the term "energy" in the modern sense