Wave motion examples and types of waves
The waves The wave motion is an example of the periodic motion. the wave is a disturbance that propagates and transfers the energy in the direction of the propagation, You notice that the concentric...
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Dinosaurs’ extinction, Causes of old and recent extinction
Scientists witnessed five mass extinctions, and some scientists believe that we live in the sixth extinction age (The Recent Extinction), where the rate of extinction is 40 times larger than the normal rate of...
Periodic motion, Concept and examples of oscillatory motion
The periodic motion The periodic motion is a motion which is regularly repeated in equal periods of time, The oscillatory motion and the wave motion are examples of the periodic motion.
Extinction and using fossils to indicate the extinction
The extinction Extinction is the continuous decrease without compensation in the number of a certain species of the living organisms until all the members of the species die out or it is the dying...