Michael, hull drag reduction is not based on microbubbles, but mechanically generated macrobubbles of milimeter dimensions.
Though individually a billion times larger in volume, for a given amount of air they collectively present less than a thousanth of the optical backscattering cross section provided by the micron sized bubbles discussed in the Bright Water paper. On Wednesday, April 20, 2011 8:38:56 PM UTC-4, Michael Hayes wrote: > > Andrew, "Bright Water" is not a new concept. It was proposed as a means to > reduce hull drag some time ago. Funding is the issue!!!! > On Wed, Apr 20, 2011 at 5:28 PM, Andrew Lockley > <[email protected]<javascript:> > > wrote: > >> Hi >> >> It seems to me that Brightwater is suitable for 'homebrew' testing, and >> indeed would greatly benefit from this work. Water bodies are very >> variable by salinity, choppiness, cloudiness, temperature, etc. >> >> Is it possible to create a set of standard tests which can be conducted >> by people to test BW in their local area? A bucket filled with seawater in >> California may behave very differently to a bucket of seawater in Scotland. >> >> I would imagine that it would be possible to test the idea using a 2 >> gallon bucket, a bicycle or car tyre pump, clock, standard diffuser nozzle >> and a ruler with a coin taped to it (for checking cloudiness). A colour- >> comparison chart may also be useful. Sure, these would be very basic >> results, but they would be very helpful if (for example) we discovered that >> water near river mouths was better than water from open ocean shorelines. >> I'm guessing that all the equipment that wasn't available in an average >> home would be able to be bought and posted for likely a lot less than 50 >> dollars. >> >> I may be offending the sensibilities of those with big labs and high >> standards, but my guess is we could quickly gain some very useful data on >> this with the participation of some people on this list, and maybe beyond. >> Who knows, maybe this could become a very popular experiment in schools >> and colleges? >> >> A >> >> -- >> You received this message because you are subscribed to the Google Groups >> "geoengineering" group. >> To post to this group, send email to [email protected]<javascript:> >> . >> To unsubscribe from this group, send email to >> [email protected] <javascript:>. >> For more options, visit this group at >> http://groups.google.com/group/geoengineering?hl=en. >> > > > > -- > *Michael Hayes* > *360-708-4976* > http://www.wix.com/voglerlake/vogler-lake-web-site > > > -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To view this discussion on the web visit https://groups.google.com/d/msg/geoengineering/-/DNUn2fFVprgJ. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en.
