magic number

Definitions

  • WordNet 3.6
    • n magic number the atomic number of an extra stable strongly bound atomic nucleus: 2, 8, 20, 28, 50, 82 or 126
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Usage

In literature:

Some conjurers say that number three is the magic number, and some say number seven.
"Oliver Twist" by Charles Dickens
In Cho-Sen seven is the magic number.
"The Jacket (The Star-Rover)" by Jack London
The other numbers are also connected with holy and magical Hebrew names.
"Bygone Beliefs" by H. Stanley Redgrove
Seven was to her a magic number; and no wonder.
"The Jewel of Seven Stars" by Bram Stoker
Two, three; that is the magic number.
"Pierre And His People, [Tales of the Far North], Complete" by Gilbert Parker
The number seven, in Egyptian magic, was regarded as particularly efficacious.
"The Evolution of the Dragon" by G. Elliot Smith
For the number 7, as we all know, the ancient Hebrews had a singular fondness, attributing to it a magic potency.
"The Menorah Journal, Volume 1, 1915" by Various
Knots were supposed to have some magical effect on diseases, and conjurations were also wrought by the power of numbers.
"Three Thousand Years of Mental Healing" by George Barton Cutten
And as they drew, Wainamoinen sang a magic charm to bring the fish in still greater numbers.
"Finnish Legends for English Children" by R. Eivind
Women must be made to feel the magical power that numbers have in regulating the mind.
"The Atlantic Monthly, Volume 18, No. 108, October, 1866" by Various
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In news:

Nats rout Brewers, 12-2, to drop magic number to five.
Reds' Magic Number now 3.
Pablo Sandoval hit a three-run homer and a solo shot, and the NL West-leading San Francisco Giants reduced their magic number to clinch the division to four by beating the Colorado Rockies 9-2 on Thursday.
THREE, AS ANY GEN-XER WHO watched Saturday morning cartoons knows, is a magic number.
Three's the magic number for Columbian.
Sterzinger implies that the license period for a nuclear plant is some magic number, beyond which we cross over to a period that requires extra oversight.
And what is his magic win number to beat the heat.
Tommy Gainey narrowly missed golf's magic number.
Is there a magic number.
Marv Bondarowicz/The Oregonian Eleven was the magic number of bottles for this chandelier.
Hmmm some say 3 is the magic number but I say 5.
Thirty minutes of exercise a day may be the magic number to lose weight.
The Texas Rangers are looking to split this series with the Oakland A's and reduce the magic number to three today.
((WEAU)) --From our birthdays to anniversaries or even just lucky numbers, there are certain numbers that seem to hold a little bit of magic in our lives.
That magic number meant an almost-certain spot in the playoffs.
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In science:

Investigations in recent years of nuclei far away from nuclear stability at facilities for radioactive ion beams have revealed that the magic numbers may change locally in those exotic nuclei leading to the disappearance of classic shell gaps and the appearance of new magic numbers.
New magic numbers
The shell structure was observed (see e.g. [15, 16]) in the occurrence of special numbers of protons and neutrons in nuclei, so called magic numbers, for which discontinuities appear, e.g. in binding energies and separation energies (the energies needed to remove the last neutron or proton).
New magic numbers
The classical magic numbers are indicated as horizontal and vertical lines in the nuclear chart shown in Fig. 1.
New magic numbers
Until recently the persistence of these magic numbers throughout the whole nuclear chart was a fundamental paradigm in nuclear physics.
New magic numbers
In this section I want to briefly review some of the experimental methods that enable us to explore the evolution of shell structure and magic numbers in exotic nuclei.
New magic numbers
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