inverse square law - définition. Qu'est-ce que inverse square law
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Qu'est-ce (qui) est inverse square law - définition

PHYSICAL LAW
Inverse square law; Inverse square; Inverse-square; Inverse Square Law; Inverse Square Laws; Inverse-square force; Inverse square law of radiation; Geometric spreading

inverse square law         
¦ noun Physics a law stating that the intensity of an effect changes in inverse proportion to the square of the distance from the source.
Square-law detector         
ELECTRONIC DEVICE
Square law detector
In electronic signal processing, a square law detector is a device that produces an output proportional to the square of some input.IEEE Std.
Inverse care law         
ADAGE ABOUT AVAILABILITY OF HEALTH CARE
The inverse care law
The inverse care law is the principle that the availability of good medical or social care tends to vary inversely with the need of the population served. Proposed by Julian Tudor Hart in 1971, the term has since been widely adopted.

Wikipédia

Inverse-square law

In science, an inverse-square law is any scientific law stating that a specified physical quantity is inversely proportional to the square of the distance from the source of that physical quantity. The fundamental cause for this can be understood as geometric dilution corresponding to point-source radiation into three-dimensional space.

Radar energy expands during both the signal transmission and the reflected return, so the inverse square for both paths means that the radar will receive energy according to the inverse fourth power of the range.

To prevent dilution of energy while propagating a signal, certain methods can be used such as a waveguide, which acts like a canal does for water, or how a gun barrel restricts hot gas expansion to one dimension in order to prevent loss of energy transfer to a bullet.

Exemples du corpus de texte pour inverse square law
1. In fact, because of the inverse square law, the phone gives you a far higher dose of evil rays than the mast.
2. The one thing that people who worry about the health risks of mobile phone masts tend to forget is the inverse square law: the power of the signal falls away extremely rapidly as you move away from the mast, much faster than you‘d think, exponentially in fact, because the energy is dissipated and spread out in three dimensions like a big, ever–growing sphere.