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Sail rigs A
sail is a
tensile structure,
which is made from
fabric or
other membrane materials, that uses wind
power to
propel sailing craft, including...
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Forces on
sails result from
movement of air that
interacts with
sails and
gives them
motive power for
sailing craft,
including sailing ships, sailboats...
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Solar sails (also
known as lightsails,
light sails, and
photon sails) are a
method of
spacecraft propulsion using radiation pressure exerted by sunlight...
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prevent the
submarine being swamped.
Under water, the
sail acts as a
vertical stabilizer. In some submarines, the
sail also
supports diving planes (or fairwater...
- of
sail is a
sailing craft's
direction of
travel under sail in
relation to the true wind
direction over the surface. The prin****l
points of
sail roughly...
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commonly known by the
names sea raft, by-the-wind sailor,
purple sail,
little sail, or
simply Velella. This
small cnidarian is part of a specialised...
- rigs
Sailing employs the wind—acting on
sails,
wingsails or kites—to
propel a
craft on the
surface of the
water (sailing ship, sailboat, raft, windsurfer...
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resistance from the hull in the
water or the
wheels or
runners on hard surfaces. Such a
calculation involves the area of each
sail and its
geometric center,...
- sheet. A
square sail is
backed by
hauling the
yards round with the braces. The
sail is then aback. 2. (With oars) to push
against the
water with the oar...
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Sail Canada (formerly the
Canadian Yachting ****ociation) is Canada's
governing body for the
sport of sailing.
Sail Canada is a "Member
National Authority"...
