This( unpublished) presentation provides no optical data, and its cost estimate of " one cent per square meter" for 40 micron glass froth spheres is a simple extrapolation from the mass of the multiimillimeter spheres illustrated, to ones several orders of magnitude smaller and individually some* 15,000 to 8,000,000 times lighter. *The material shown would accordngly cost dollars, not cents, per square meter to deploy.
While reducing such particles to a third the diameter of a human hair shrinks their cost wonderfully well, it can't turn them into a specular reflector, or diminish the risks of wildlife ingestion, wind driven rafting, biofilm fouling and darkening. These factors may in turn be moot since the optical absorption of these low-cost recycled glass insulation beads is large compared to water. Optical modeling and reflectance spectrophotometray are needed to determine if ones small enough to be economically interesting backscatter more energy that they absorb. On Monday, February 4, 2013 2:39:33 PM UTC-5, andrewjlockley wrote: > > Pls see attached, as discussed in another thread. > > Has this been published? > > A > -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
