What’s air conduction?

Air conduction is how most sound reaches our ears, except for our own voice which is transmitted through bone conduction. Sound travels through the ear canal to the eardrum, causing it to vibrate and transmitting vibrations to the ossicles in the middle ear. These vibrations then travel to the cochlea in the inner ear, where […]

What’s the cardiac conduction system?

The heart’s conduction system is regulated by the sinoatrial node (SAN), which sends impulses to other cardiac fibers. The SAN is the pacemaker of the heart and regulates heart rate. The conduction system uses bundled fibers to carry signals from the SAN throughout the heart, and the entire depolarization sequence for one heartbeat takes less […]

What’s conduction?

Heat is transferred through conduction, convection, and radiation, but only heat can be transferred. Metals are good conductors, while wood, paper, air, and cloth are poor conductors. Insulators, such as air, prevent heat transfer. Charged objects can transfer charge through conduction. Heat is transferred in several ways, conduction, convection and radiation. Regardless of the transfer […]

What’s a conduction band?

The conduction band in quantum mechanics is an orbital area for electrons, which rarely contains electrons. Electrons can move to higher orbitals in the conduction band when they gain energy, determining the electrical conductivity of an object. Used in quantum mechanics, the term conduction band refers to a combined orbital area, or band, for electrons […]

Radiation, convection, and conduction: what’s the link?

Heat can be transferred through radiation, convection, and conduction. Convection and conduction require matter, while radiation does not. Heat is transferred when hotter materials contact cooler ones, and this continues until they reach thermal equilibrium. Conduction occurs when faster-moving particles transfer energy to slower-moving ones, while convection occurs when particles with more thermal energy move […]

Thermal conduction: what is it?

Thermal conduction is the transfer of heat energy from hot to cold objects without movement. Particles with high thermal energy move faster and transfer energy to slower-moving particles until thermal equilibrium is reached. Thermal conductivity is the rate at which heat is transferred, with metals being better conductors than non-metals. Electrons are efficient conductors of […]

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