Natural Science Forum / Physics / General Physics / July 2008

One can in principle assay *all* interactive vacuum contents as the
Earth spins about its axis and falls around the sun - to remarkably
high sensitivity and with an internal check,

HK Moffat, "Six lectures on general fluid dynamics and two on
hydromagnetic dynamo theory", pp. 175-6 in R Balian & J-L Peube (eds),
<I>Fluid Dynamics</I> (Gordon and Breach,1977)
<http://www.igf.fuw.edu.pl/KB/HKM/PDF/HKM_027_s.pdf>
3.5 megabytes; pdf pp. 25-27, "calculation of the chiral case"

Craft two solid spheres of cultured single crystal quartz, one each in
enantiomorphic space groups P3(2)21 (right-handed) and P2(2)21
(left-handed).  Niobium plate their surfaces.  Cool to Type I
superconductivity Tg = 9.3 K, Meissner levitate in hard vacuum, and
look.  If they start spinning in *opposite* directions you have vacuum
propellers.  Theorists can sweat the rest.

If a Type II supercon is satisfactory, niobium stannide Tg =  18.3 K
and you can levitate much larger radius, heavier balls given the much
larger upper critical field of 25 tesla.  If you are feeling studly,
sputtered niobium germanide with 23.2 K and 29 tesla (at 4.2 K).

It isn't quite simple but it is much simpler than looking for a
periodic signal, and with surpassing sensitivity for not being limited
by thermal noise.  An array of paired balls gives you counting
statistics and deep internal validation with a single run.

Somebody should look.