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Forces

Force

(Science: physics) rate of change of momentum with time. Forces are said to cause accelerations via f = ma (Newton's law).

there are four primary forces known presently: the gravitational, electromagnetic, weak nuclear, and strong nuclear forces. The gravitational and electromagnetic forces are long-range (dropping as 1/distance^2), while the nuclear forces are short range (effective only within nuclei, distances on the order of 10^-15 metres). The electromagnetic force is much stronger than the gravitational force, but is generally cancelled over large distances because of the balance of positive and negative charges.

See: momentum.


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Re: Evolutionary mechanisms

Natural selection is probably one of the primary driving forces of evolution, but all the other mechanisms that you mentioned are also very important. it is difficult to say what is the most important driving force since i think that is situational. ...

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by pathologicalliar
Sat Nov 10, 2012 11:04 am
 
Forum: Evolution
Topic: Evolutionary mechanisms
Replies: 3
Views: 1413

holographic origin of life

... the existence of life. The property of reproduction in living beings that are chemical reactions seem s to actually be a result of the energy that forces the chemical reactions to continue happening.Life continues because chemical reactions continue.Reproduction seems to be one of the most ancient ...

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by minasole
Tue Oct 16, 2012 10:19 pm
 
Forum: Evolution
Topic: holographic origin of life
Replies: 7
Views: 3333

What evolutionary force is at work here

... families. All contemporary Pitcairn islanders can trace at least part of their family tree back to the colonization event. What evolutionary forces were at work in this small, isolated population before, during, and after the arrival of the mutineers?

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by sp1nn3r
Fri Sep 28, 2012 7:18 am
 
Forum: Evolution
Topic: What evolutionary force is at work here
Replies: 1
Views: 627

Re: FINDINGS GROW THAT ALCOHOL HARMS FETUS

Is this a real thing or some hypothetical where there is very little science going. What happens if your manager forces you to serve the customer, you going to give up your job over it? Probably not right

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by david23
Mon Sep 10, 2012 11:30 pm
 
Forum: General Discussion
Topic: FINDINGS GROW THAT ALCOHOL HARMS FETUS
Replies: 3
Views: 2300

Re: Theories - Origin of Life

... discussion. Antibiotic resistance is often used to show that the development of this resistance in humans is a result of random evolutionary forces that natural selection uses. However what does the empirical evidence actually show? In the book “Bacteria versus Antibacterial Agents – an Integrated ...

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by scottie
Fri Aug 17, 2012 3:46 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 548
Views: 600308
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