[Greenbuilding] Reversible windows

[Speireag Alden]

Hallo, all.

     While we're discussing windows, has anyone seen these, or have an 
opinion on them?  They are one-way with regard to thermal radiation, 
such that you can turn them in the appropriate direction for the 
season.

 
http://freshome.com/2007/11/05/a-window-that-can-both-heat-and-cool-your-home/

-Speireag.

-- 
A wise man will make haste to forgive, because he knows the true 
value of time, and will not suffer it to pass away in unnecessary 
pain.
--Samuel Johnson, lexicographer (1709-1784)