http://www.bestumbrella.net/shade-umbrella/
Shade Umbrella
On a hot, sunny day is it cooler to stand in the shade of a leafy tree or the shade of an umbrella?
Does the photosynthesizing tree absorb some of the sun's energy as it is an endothermic reaction? so would standing under a tree be cooler as some of the energy is taken in by the tree rather than just standing under an umbrella or the shade of a building etc..
Is the amount of heat (not light) energy absorbed in photosynthesis enough for it be noticeably cooler in the shade of a tree
If the leaves of the tree are 100% opaque, and so is the umbrella (or the building), then they will be equally cool. Most Umbrellas are not 100% opaque, nor are most trees. The coolest spot will probably be in the shade of a building.
The amount of energy absorbed by the tree, as a percentage of the total energy of the sunlight, is fairly small. Most of the energy is still dissipated as heat when it strikes the leaves.
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Deck Chairs in the Shade of an Umbrella $24.99 Deck Chairs in the Shade of an Umbrella - Photographic Print |
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TropiShade 9-foot Beige Umbrella Shade $110.16 Attractive and sturdy, this 9-foot beige outdoor umbrella features six ribs and an single wind vent for stability. This weather resistant umbrella features a lovely teak finish. Color: Beige/light teak finished wood Materials: Wood, polyester Weather resistant Six (6) ribsSingle wind vent for stabilityDimensions: 56 inches high x 108 inches in diameter Weight: 12 poundsBase sold separately Assembly required |
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TropiShade 9-foot Blue Umbrella Shade $110.16 Attractive and sturdy, this 9-foot blue outdoor umbrella features six ribs and an single wind vent for stability. This weather resistant umbrella features a lovely teak finish. Color: Blue/teak finish Materials: Wood, polyester Weather resistant Six (6) ribsSingle wind vent for stabilityDimensions: 56 inches high x 108 inches in diameter Weight: 12 poundsBase sold separately Assembly required |
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TropiShade 9-foot Green Umbrella Shade $110.16 Attractive and sturdy, this 9-foot green outdoor umbrella features six ribs and an single wind vent for stability. This weather resistant umbrella features a lovely teak finish. Color: Green/teak finish Materials: Wood, polyester Weather resistant Six (6) ribsSingle wind vent for stabilityDimensions: 56 inches high x 108 inches in diameter Weight: 12 poundsBase sold separately Assembly required |
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TropiShade 9-foot Natural Umbrella Shade $110.16 Attractive and sturdy, this 9-foot natural-color outdoor umbrella features six ribs and an single wind vent for stability. This weather resistant umbrella features a lovely teak finish. Color: Natural/teak finish Materials: Wood, polyester Weather resistant Six (6) ribsSingle wind vent for stabilityDimensions: 56 inches high x 108 inches in diameter Weight: 12 poundsBase sold separately Assembly required |
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EZ Shade--- Attaches to any umbrella or canopy---no more chasing the Shade---
AND Other Fine Retailers!
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New Deluxe 10' Patio Outdoor Offset Hanging Umbrella Gazebo Sun Shade Tent Beige $97.95 |
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Sport Brella Beach Umbrella (Blue) (54"H x 3.5"W x 3.5"D) Steel Blue Shade $43.19 |
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Beach Umbrella Sun Shelter Shade Canopy Camping Tent $134.15 |
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