Accessories
To learn more about any accessory, just click the accessory name.
| Mini-Category |
Model |
Item # |
Price |
Shipping |
| Camera |
BioVID |
BVN110 |
$1149.99 |
|
| Camera |
Minivid |
MV10 |
$599.99 |
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The first windmills were developed to automate the tasks of grain-grinding and water-pumping and the earliest-known design is the vertical axis system developed in Persia about 500-900 A.D. The first use was apparently water pumping, but the exact method of water transport is not known because no drawings or designs -- only verbal accounts -- are available. The first known documented design is also of a Persian windmill, this one with vertical sails made of bundles of reeds or wood which were attached to the central vertical shaft by horizontal struts.
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