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The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
WikiVisually
The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
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Cutting
Videos
Cutting is the separation or opening of a physical object through the application of an acutely directed force.
Different types of scissors – sewing (left), paper (middle), kitchen (right)
Different types of scissors – sewing (left), paper (middle), kitchen (right)
A glass cutter, showing hardened steel cutting wheel (far left), notches for snapping, and ball (on end of handle) for tapping
A glass cutter, showing hardened steel cutting wheel (far left), notches for snapping, and ball (on end of handle) for tapping
Force
Videos
In physics, a force is an action that can cause an object to change its velocity or its shape, or to resist other forces, or to cause changes of pressure in a fluid. In mechanics, force makes ideas li
Cutting
…Cutting is the separation or opening of a physical object through the application of an acutely directed force. Implements commonly used for cutting are the knife and saw, or in medicine and science the scalpel and microtome. However, any sufficiently sharp…
Aristotle famously described a force as anything that causes an object to undergo "unnatural motion"
Aristotle famously described a force as anything that causes an object to undergo "unnatural motion"
Sir Isaac Newton in 1689. His Principia presented his three laws of motion in geometrical language, whereas modern physics uses differential calculus
Sir Isaac Newton in 1689. His Principia presented his three laws of motion in geometrical language, whereas modern physics uses differential calculus and vectors.
Galileo Galilei was the first to point out the inherent contradictions contained in Aristotle's description of forces.
Galileo Galilei was the first to point out the inherent contradictions contained in Aristotle's description of forces.
Images of a freely falling basketball taken with a stroboscope at 20 flashes per second. The distance units on the right are multiples of about 12 mil
Images of a freely falling basketball taken with a stroboscope at 20 flashes per second. The distance units on the right are multiples of about 12 millimeters. The basketball starts at rest. At the time of the first flash (distance zero) it is released, after which the number of units fallen is equal to the square of the number of flashes.