LSS DESIGN NOTES
2/12/06

8/26/06: Appended notes on lamp brightnesses

Basic structure:

  20.275" diameter central sphere
  70 rods supporting zone-4 clusters, each 34"
  150 bulbs
  1 cable attachment hole
  approximately even distribution on sphere, generated 
  by "anti-gravitational" simulation

Clusters:

  Cluster spheres are 1.625" diameter.
  All galaxy attachment rod lengths are rounded to nearest 0.5"

  Zone 4 clusters:

    8/9 clusters are 1-component
	anisotropically distributed
	xmin,ymin = 2 in
	xmax,ymax = 4 in
	zmin = 4 in
	zmax = 9 in
	1/4 size 1, 1/2 size 2, 1/4 size 3
	size 1 are all disks
	size 2 and 3 are 3/4 disks, 1/4 spheres

    10-15 clusters have two-component structure
      core:
	1/2 of galaxies in cluster (rounded down)
	spherically distributed
	rmin = 2.5 in             [changed from 3.0]
	rmax = 4.0 in             [changed from 5.0]
	1/4 size 1, 1/4 size 2, 1/2 size 3
	size 1 are all spheres
	size 2 are 1/2 spheres, 1/2 disks
	size 3 are 3/4 spheres, 1/4 disks
      filament:  
	remaining galaxies
	anisotropically distributed
	xmin,ymin = 2 in
	xmax,ymax = 4 in
	zmin = 4 in
	zmax = 9 in
	1/4 size 1, 1/2 size 2, 1/4 size 3
	size 1 are all disks
	size 2 are 3/4 disks, 1/4 spheres
	size 3 are 3/4 disks, 1/4 spheres  [changed from 1/2 and 1/2]

Clusters conflicts:

  Cluster spheres are 1.625" diameter.

  The centers of galaxy rod holes are required to be 0.6" away from 
  the attachment point in all zones.

  Galaxy rod holes must be at least 0.23" away from each other on the
  surface of cluster sphere.  

  Two galaxies may not be separated by less than 1.2 times the sum of
  their radii.

  A rod may not pass within 0.6 times the diameter of an interior galaxy.

Weights:

  Central sphere (lbs): TBD
  
  Cluster spheres (lbs): 0.210 lbs
  Lamps (lbs): 0.125

  Disk galaxies (GRAMS):   35, 55, 95  for sizes 1, 2, 3
  Sphere galaxies (GRAMS): 60, 90, 120 for sizes 1, 2, 3
  Galaxy support rods assumed to be 0.0017 pounds/inch

  Cluster rods assumed to be
    TBD


Brightnesses for lamps: based on 4-year COBE map, galaxy subtracted

Wattages are 5, 10, 25, 40, 60

Correspondence between CMB temperature and lamp wattage is

T < -0.2039 mK (lowest 10%): 5 watts

-0.2039 mK <= T < -0.08285 mK (10-30%): 10 watts

-0.0825 mK <= T < 0.07333 mK (30%-70%): 25 watts

0.07333 mK <= T < 0.1857 mK (70%-90%): 40 watts

T > 0.1857 mK (top 10%): 60 watts

There are 18 5-watt lamps, 28 10-watt lamps,
59 25-watt lamps, 23 40-watt lamps, and 22 60-watt lamps.