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Physics

Water dilation

Surely you may have seen, in cartoons or documentaries, people fishing in ice holes. But as we have seen, liquids dilate in the same way as solids, ie evenly, so how is it possible that there is liquid water under the ice sheets at or below 0 ° C?
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Physics

Universal gravitation

Gravitational force When studying the motion of the moon, Newton concluded that the force that causes it to be constantly in orbit is the same as the force that the earth exerts on a nearby body. From there he created the Law of Universal Gravitation. Newton's Universal Law of Gravitation: "Two bodies attract each other with force proportional to their mass and inversely proportional to the square of the distance that separates their centers of gravity.
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Chemistry

Introduction to the study of chemistry

What is chemistry? Chemistry is the science that studies matter and its transformations. It also studies the energy that is involved in these transformations. Chemistry is very linked to our daily lives. It is present in food, medicine, buildings, plants, clothing, fuels. Everything in the universe is made up of chemistry.
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Physics

Foucault Chains

When a magnetic flux varies across a solid surface, not just bounded by a conductor as seen in electromagnetic induction, an induced current is created over it as if every surface were composed of a combination of very thin juxtaposed turns. The name given to these currents is named after the French physicist and astronomer Jean Bernard Léon Foucault, who first showed their existence.
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Chemistry

Contents of contents

Click on the desired subject name to view its content. WATER Water on the Planet Earth Physical States Water Cycle Separation of Principal Components Types Water as Solvent Density and Buoyancy Pressure Water and Life Water Treatment Diseases AR Atmosphere Air Composition Combustion Air Properties Weather Forecasting ENVIRONMENT PRESERVATION Preserving the Aquatic Environment Preserving Atmospheric Air Preserving Environments Exploring the Environment Basic Sanitation Public Health UNITS OF MEASURES Physical Quantities International System CONSTITUTION Atom Ion Isotopes, Isobars and Isotones Atomic Mass Periodic Table MATERIAL AND ENERGY Substance Object and Substance Chemicals and Physics Properties of Matter Energy Types CHEMICAL CONNECTIONS Noble Gas Stability Ionic Bonding Covalent Bonding Metallic Bonding OCTET THEORY Polarity of Molecules Molecules Polarity INTERMOLECU LINKS HOME INTERMOLECULAR INTERACTIONS Hydrogen Bridges Dipole-Dipole London Forces MOLECULAR GEOMETRY Linear Angular Trigonal Planar Pyramidal Tetrahedral SUBSTANCE CHEMICAL SUBSTANCE Classification Phase Shift and Graph Allotropy MIXTURES Substance and Mixture Equation Quasi-Equation Quasi-Chemistry Types of Chemical Reactions Lavoisier's Law Proust's Law RADIOACTIVITY Radiation Disintegration Decay and Half-Life Effects on Organisms INTRODUCTION TO STUDY What is Chemistry Matter and Substance Physical States of Matter Allotropy Separation of Mixtures ATOMIC MODELS Dalton Thompson Boutford Schrödinger Broglie Principle of Uncertainty
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Chemistry

Lavoisier's Law

"In a chemical reaction, the sum of the masses of the reactants is equal to the sum of the masses of the products." According to this law, in a closed chemical system, whatever transformation occurs, the mass remains constant. These statements obey a law of nature. It was discovered by French scientist Antoine Lavoisier in the late 17th century.
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