Re: [OGD] Passive cooling

The ideal passive cooling scheme is probably under floor water - that is, to have a "lake" which absorbs heat during the day and emits it at might; and does this while maintaining humidity. However, this is more a matter of active air circulation than temperature maintenance per se. Two points,

[OGD] New York shows (US)

"One species... Ophrys produces blooms that... give off a pheromone that excites male bees... Bronx, where the New York Botanical Garden is holding its orchid show in the Enid A. Haupt Conservatory. The exhibit features flowers from specialty nurseries and the garden's permanent collection of m

Re: [OGD] greenhouse ventilation

Charles, Vent tubes are a great way to provide outside air and I know a lot of commercial greenhouses in this area that use them in the summer. I have talked to the greenhouse owners and managers about them, and with our winter wind. They get too much extremely cold air pushing into the gr

[OGD] Springfield / Missouri (US)

*** if you touch the end of a Phragmipedium caudatum [the petals] it will stop growing." article URL : http://www.news-leader.com/apps/pbcs.dll/article?AID=/20070326/NEWS01/703260393 photo : [caption : Christina Hoang passes by a display of orchids at the Springfield Orchid Society&

[OGD] Stony Hill Gardens / New Jersey (US)

ng," Davis said." article URL : http://www.dailyrecord.com/apps/pbcs.dll/article?AID=/20070326/COLUMNISTS20/703260333 photos : 1) caption : "Dale Davis... at Stony Hill Gardens... has been growing orchids since 1976." http://cmsimg.dailyrecord.com/apps/pbcsi.dll/bilde

[OGD] trekkers damaging species (Malaysia)

"Located in one of the 17 forest reserve areas in Cameron Highlands, the mossy forest in Batu Gangan on Gunung Brinchang needs to be preserved. The forest... about 1,500m above sea level on the mountain, has been the water catchment area for Cameron Highlands and it lies along the boundary of P