It consists of a windmill sail placed horizontally like that of a smoak-jack, surrounded by an octagon tower... [U]pright pillars are connected toget… - Erasmus Darwin
" "It consists of a windmill sail placed horizontally like that of a smoak-jack, surrounded by an octagon tower... [U]pright pillars are connected together by oblique horizontal boards... at an angle of about 45 degrees... so as to form a complete octagon including the horizontal windmill sail near the top... [T]he wind as it strikes... from whatever quarter it comes, is bent upwards and then strikes against the horizontal wind-sail. These horizontal boards... may... be made to turn upon an axis a little below their centres of gravity, so as to close themselves on that side of the octagon tower most distant from the wind. ...[I]t was found on many trials by Mr. Edgeworth... and by myself, that the wind by being thus reverted upwards by a fixed planed board did not seem to lose any of its power. And as the height of the tower may be made twice as great as the diameter of the sail, there is reason to conclude that the power of this horizontal wind-sail may be considerably greater, than if the same sail was placed nearly vertically...
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About Erasmus Darwin
Erasmus Darwin (12 December 1731 – 18 April 1802) was an English physician, natural philosopher, physiologist, inventor and poet. He was one of the founder members of the Lunar Society, a discussion group of pioneering industrialists and natural philosophers. He was a member of the Darwin — Wedgwood family, which most famously includes his grandson, Charles Darwin.
Also Known As
Alternative Names:
Erasmus Robert Darwin
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Additional quotes by Erasmus Darwin
Where Sydney Cove her lucid bosom swells,
Courts her young navies, and the storm repels;
High on a rock amid the troubled air
Hᴏᴘᴇ stood sublime, and waved her golden hair;
Calmed with her rosy smile the tossing deep,
And with sweet accents charmed the winds to sleep;
To each wild plain she stretched her snowy hand,
High-waving wood, and sea-encircled strand. ‘Hear me,’ she cried, ‘ye rising realms! record
Time’s opening scenes, and Truth’s unerring word.
There shall broad streets their stately walls extend,
The circus widen, and the crescent bend;
There, rayed from cities o’er the cultured land,
Shall bright canals, and solid roads expand.
There the proud arch, colossus-like, bestride
Yon glittering streams, and bound the chasing tide;
Embellished villas crown the landscape-scene,
Farms wave with gold, and orchards blush between.
There shall tall spires, and dome-capped towers ascend,
And piers and quays their massy structures blend;
While with each breeze approaching vessels glide,
And northern treasures dance on every tide!’ Then ceased the nymph—tumultuous echoes roar,
And Joy’s loud voice was heard from shore to shore—
Her graceful steps descending pressed the plain,
And Peace, and Art, and Labour, joined her train.
Roll on, ʏᴇ Sᴛᴀʀs! exult in youthful prime,
Mark with bright curves the printless steps of Time;
Near and more near your beamy cars approach,
And lessening orbs on lessening orbs encroach;—
Flowers of the sky! ye too to age must yield,
Frail as your silken sisters of the field!
Star after star from Heaven's high arch shall rush,
Suns sink on suns, and systems systems crush,
Headlong, extinct, to one dark centre fall,
And Death and Night and Chaos mingle all!
—Till o'er the wreck, emerging from the storm,
Immortal Nᴀᴛᴜʀᴇ lifts her changeful form,
Mounts from her funeral pyre on wings of flame,And soars and shines, another and the same.
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