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Binding energy
A '''binding energy''' is the net negative [[potential energy]] (''i.e.'', the net energy debt) pulling a bound system together.<ref>Young, Hugh D.; Freedman, ‎Roger A. [https://www.google.co.uk/search?newwindow=1&tbm=bks&q=%22has+a+net+negative+potential+energy%22 University Physics]. Addison-Wesley, 2000, p. 736. "'''A crystal''' of table salt is made of ions of sodium (Na<sup>+</sup>) and chlori(contracted; show full)arly fond of is the way chrome-nickel steel acquires, through chemical mating, a tensile strength greater than the sum of its components. But '''the highest expression of synergy is man's intuition''', his ability to see comprehensive patterns in random events, which has led him from near helplessness to the point where he can now take control of his own evolution.
:—Farrell, Barry. [https://books.google.co.uk/books?id=kVMEAAAAMBAJ&pg=PA46 The View from the Year 2000]
. ''LIFE Magazine'', 26 February 1971
</blockquote>

==Mass-energy relation==
{{main|Mass–energy equivalence}}
When a system becomes bound (''i.e.'', energetically indebted), the borrowed positive actual energy must be radiated away and subtracted from the [[rest mass]] of the unbound system, simply because this positive actual energy has a [[w:Mass in special relativity#Relativistic mass|relativistic mass]].<ref>[http://hyperphysics.phy-astr.gsu.edu/hbase/(contracted; show full)
==External links==
*[http://hyperphysics.phy-astr.gsu.edu/hbase/nucene/nucbin.html Nuclear Binding Energy]

{{DEFAULTSORT:Binding Energy}}
[[Category:Basic physics ideas]]
[[Category:Cosmology]]
[[Category:Energy]]