Classical element - Wikipedia

Classical elements typically refer to water, earth, fire, air, and (later) aether, which were proposed to explain the nature and complexity of all matter in terms of simpler substances. Ancient cultures in Greece, Tibet, and India had similar lists, sometimes referring in local languages to "air" as "wind" and the fifth element as "void".. These different cultures and evenAether (classical element) - Wikipedia,According to ancient and medieval science, aether (/ ˈ iː θ ər /, alternative spellings include æther, aither, and ether), also known as the fifth element or quintessence, is the material that fills the region of the universe beyond the terrestrial sphere. The concept of aether was used in several theories to explain several natural phenomena, such as the traveling of light and gravity.Physics - Simple English Wikipedia, the free encyclopedia,Physics is a branch of science.It is one of the most fundamental scientific disciplines.The main goal of physics is to explain how things move in space and time and understand how the universe behaves. It studies matter, forces and their effects.. The word physics comes from the Greek word ἡ φύσις, meaning "nature". Physics can also be defined as "that department ofOxygen - Simple English Wikipedia, the free encyclopedia,Oxygen is a chemical element.It has the symbol O and atomic number 8. It is the third most common element in the universe, after hydrogen and helium.Oxygen is more than a fifth of the Earth's atmosphere by volume. In the air, two oxygen atoms usually join to make dioxygen (O 2), a colourless gas.This gas is often just called oxygen. It has no taste or smell.It is pale blueClassical element - Wikipedia,Classical elements typically refer to water, earth, fire, air, and (later) aether, which were proposed to explain the nature and complexity of all matter in terms of simpler substances. Ancient cultures in Greece, Tibet, and India had similar lists, sometimes referring in local languages to "air" as "wind" and the fifth element as "void".. These different cultures and evenAether (classical element) - Wikipedia,According to ancient and medieval science, aether (/ ˈ iː θ ər /, alternative spellings include æther, aither, and ether), also known as the fifth element or quintessence, is the material that fills the region of the universe beyond the terrestrial sphere. The concept of aether was used in several theories to explain several natural phenomena, such as the traveling of light and gravity.

Physics - Simple English Wikipedia, the free encyclopedia

Physics is a branch of science.It is one of the most fundamental scientific disciplines.The main goal of physics is to explain how things move in space and time and understand how the universe behaves. It studies matter, forces and their effects.. The word physics comes from the Greek word ἡ φύσις, meaning "nature". Physics can also be defined as "that department ofOxygen - Simple English Wikipedia, the free encyclopedia,Oxygen is a chemical element.It has the symbol O and atomic number 8. It is the third most common element in the universe, after hydrogen and helium.Oxygen is more than a fifth of the Earth's atmosphere by volume. In the air, two oxygen atoms usually join to make dioxygen (O 2), a colourless gas.This gas is often just called oxygen. It has no taste or smell.It is pale blueClassical element - Wikipedia,Classical elements typically refer to water, earth, fire, air, and (later) aether, which were proposed to explain the nature and complexity of all matter in terms of simpler substances. Ancient cultures in Greece, Tibet, and India had similar lists, sometimes referring in local languages to "air" as "wind" and the fifth element as "void".. These different cultures and evenAether (classical element) - Wikipedia,According to ancient and medieval science, aether (/ ˈ iː θ ər /, alternative spellings include æther, aither, and ether), also known as the fifth element or quintessence, is the material that fills the region of the universe beyond the terrestrial sphere. The concept of aether was used in several theories to explain several natural phenomena, such as the traveling of light and gravity.Physics - Simple English Wikipedia, the free encyclopedia,Physics is a branch of science.It is one of the most fundamental scientific disciplines.The main goal of physics is to explain how things move in space and time and understand how the universe behaves. It studies matter, forces and their effects.. The word physics comes from the Greek word ἡ φύσις, meaning "nature". Physics can also be defined as "that department ofOxygen - Simple English Wikipedia, the free encyclopedia,Oxygen is a chemical element.It has the symbol O and atomic number 8. It is the third most common element in the universe, after hydrogen and helium.Oxygen is more than a fifth of the Earth's atmosphere by volume. In the air, two oxygen atoms usually join to make dioxygen (O 2), a colourless gas.This gas is often just called oxygen. It has no taste or smell.It is pale blue