%I #7 Mar 31 2012 20:55:21
%S 10,1111,10,111111,11,1110,11111110,1111,11,111111,1111111110,111111,
%T 11,1111,11111111,111111111110,11111111,1111,11,111111,1111111111,
%U 11111111111110,1111111111,111111,11,1111,11111111,111111111111
%N A shell geometric model of the nucleus. The location of the magic numbers. A triangle.
%C The magic numbers of the atomic nucleus: 2, 8, 20, 28, 50, 82, 126. 0 is the location of a magic number. 10 or 11 is equal to 2 protons (or neutrons). 1110 or 1111 is equal to 2+2 protons (or neutrons). 111111 is equal to 2+2+2 protons (or neutrons)... The 2D model is a triangle and a spiral. The 3D model is a double tetrahedron and a double spiral.
%e ......|----------------------- h -------------------|.....
%e ......|.....|----------------- g --------------|....|.....
%e ......|.....|.....|----------- f ---------|....|....|.....
%e ......|.....|.....|....|------ d -----|...|....|....|.....
%e ......|.....|.....|....|...|-- p -|...|...|....|....|.....
%e ......|.....|.....|....|...|.. s .|...|...|....|....|.....
%e ......|.....|.....|....|...|......|...|...|....|....|.....
%e ......|.....|.....|....|......10......|...|....|....|.....
%e ......|.....|.....|......1111....10.......|....|....|.....
%e ......|.....|.......111111....11....1110.......|....|.....
%e ......|........11111110..1111....11....111111.......|.....
%e .......1111111110...111111....11....1111...11111111.|.....
%e 111111111110...11111111..1111....11....111111...1111111111
%e ......|.....|.....|....|...|..|...|...|...|....|....|.....
%e ......|.....|.....|....|...|..|1/2|...|...|....|....|.....
%e ......|.....|.....|....|...|-- 3/2 ---|...|....|....|.....
%e ......|.....|.....|....|------ 5/2 -------|....|....|.....
%e ......|.....|.....|----------- 7/2 ------------|....|.....
%e ......|.....|----------------- 9/2 -----------------|.....
%e ......|---------------------- 11/2 -----------------------
%Y Cf. A056951, A130517, A130556, A130602.
%K nonn,tabl
%O 1,1
%A _Omar E. Pol_, Aug 10 2007