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"Microevolution is defined as changes within a species that aren't drastic enough to create an entirely new species. Changes that result in a new species are part of macroevolution. Often microevoluti ...
Video Química
"A metallic bond shares electrons but unlike ionic bonds, it does not fill the valence shell octets of the bonding atoms. All of the electrons involved form one huge electron cloud which all the nucle ...
Video Química
"Aromatic hydrocarbons, also called aromatic compounds, are compounds that contain benzene as a part of their structure. Benzene is a cyclic hydrocarbon with the formula C6H6." Fuente: BrightStormArom ...
"Meiosis is a type of cell division that produces gametes. In meiosis, cells undergo two divisions. The result of meiosis is the production of four haploid cells from a diploid cell with each haploid ...
Video Física
"An object's ability to do work is measured by its mechanical energy, or the sum the object's kinetic energy and potential energy. Mechanical energy is due to the position or movement of an object. Th ...
"Mass-energy equivalence states that mass is concentrated energy. In his theory of special relativity Einstein formulated the equation E=mc^2. There is a tremendous amount of energy in mass. A 20g mar ...
Video Física
"Magnetic fields are vector fields associated with magnetic forces. Magnetic fields are generated by Hard Ferromagnets. Unlike electric fields, magnetic fields always make closed loops and are never c ...
Video Física
"Magnetic domains are collections of magnetic fields in the same direction. They are often found in ferromagnetic materials because their atoms align with magnetic fields in a process called a ferroma ...
Video Física
"Lorentz force is the force on charge in electromagnetic field. Lorentz force is determined by the formula F = qv x B, in which q is the charge, v is the velocity, and B is the magnetic field density. ...
Video Física
"Longitudinal waves are waves which move particles in the direction of the wave motion. They are the counterparts to transverse waves which move particles parallel to the direction of wave motion. " ...
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