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A natural phenomenon is an observable event which is not man-made. Examples include: sunrise, weather, fog, thunder, tornadoes; biological processes, decomposition, germination; physical processes, wave propagation, erosion; tidal flow, and natural disasters such as electromagnetic pulses, volcanic eruptions, hurricanes and earthquakes. [1] [2]
The Supernova Cosmology Project and the High-Z Supernova Search Team discover, by observing Type Ia supernovae, that the expansion of the Universe is accelerating (1998) Galileo Galilei uses a telescope to observe that the moons of Jupiter appear to circle Jupiter.
In other projects Wikimedia Commons; ... Science of photography (4 C, 96 P) Periodic phenomena (18 C, 27 P) Physical phenomena (19 C, 113 P) T. Thermodynamic processes
Brookings effect (atmospheric science) (Curry County, Oregon) (Oregon coast) (Oregon geography) (winds) Brown Willy effect (geography of Cornwall) (mesoscale meteorology) Bruce effect (reproduction) Bullwhip effect (distribution, retailing, and wholesaling) Butterfly effect (chaos theory) (physical phenomena) (stability theory)
These hypotheses suggest reasons to explain a phenomenon or predict the results of an action. An example might be the hypothesis that "if I release this ball, it will fall to the floor": this suggestion can then be tested by carrying out the experiment of letting go of the ball, and observing the results.
One common example is the rainbow, when light from the Sun is reflected and refracted by water droplets. Some phenomena, such as the green ray, are so rare they are sometimes thought to be mythical. [2] Others, such as Fata Morganas, are commonplace in favored locations. Other phenomena are simply interesting aspects of optics, or
Inductance — The phenomenon whereby the property of a circuit by which energy is stored in the form of an electromagnetic field. Induction heating — Heat produced in a conductor when eddy currents pass through it. Joule heating — Heat produced in a conductor when charges move through it, such as in resistors and wires.
Example of a physical phenomenon is an observable phenomenon of the lunar orbit or the phenomenon of oscillations of a pendulum. [4] A mechanical phenomenon is a physical phenomenon associated with the equilibrium or motion of objects. [5] Some examples are Newton's cradle, engines, and double pendulums.