How is a wind vane work
How does a windvane work
[Music]
my house okay this is going to be a
video about how a wind vane works pay
attention because there'll be a test
afterwards so this is a Rube Goldberg
type of contraction travel and it's
geared for those utilizing the wind
start from the front or is it pops that
is the date
and at the moment the wind is coming
from over there somewhere and that means
if you look closely you'll see that the
vein is actually turned that way that's
the leading edge of the aim right there
leading edge so if the wind is blowing
directly on that edge the vane will
stand upright if the wind is not
directly on it it will move either
forward
why didn't move forward or backward
right here fulcrum and you can see that
fulcrum usable in the rod depending on
which way the vane goes will now either
go up or down down there another pin up
and down that other pin
it's connected to what in reality is
like a rack and pinion steering meaning
there's two sets of years these things
are actually curved so when that rod
moves upwards for example the teeth on a
grab hold some other teeth and turn back
slightly when it turns water pressure
then moves it from one to one side in
this case you can see all the way out
that when he moved to that side it is
pulling strange thing that piece Ripley
that's here change across here so
through that pulley there
across the pool there comes around those
pool there and onto this drum here she
just turned tiny bit out one of the
marks of a really good sailor
get your sails from her would be in the
trimming sails so the boat virtually
itself is what we're seeing here because
you see the wheels not moving very much
for the boats sailing more or less
himself it's called the wind day and it
uses no electricity and this is an areas
when vain the particular one here is
very old probably at least thirty years
old it was invented the area's I think
the first real production line of wind
vane was a guy named Nichols Brett they
started building them in the 60s the
early sixties before that were wind vane
things people build one time by
themselves it isn't probably thirty
years old works just fine as you can see
there's all kinds of things
you steer by bees so you pull on this
and that turns the vane a little bit the
wind Bane and we turned the wind vane a
little bit now but meeting the wind will
come in and force that to move and the
boat will turn until everything's back
in equilibrium again and actually this
is a very very very
so test in five minutes prepares
