You have recently visited an aerodynamic museum.
1539 Wind tunnel test model. Some sort of fin stabilized hypersonic
projectile. The support strut is on the left.
1541 Airplane engine starter.
1542 Wind Tunnel. It must have been an interesting and highly skilled job
to fabricate this structure.
Yep, that was a standard item among cub scouts and boy scouts in my youth.
This is one of several shapes. Another common shape was a round one. As
was pointed out by my scoutmaster, the native americans did not have these
mass produced looms for their beadwork. So they were not exactly authentic
in that regard. These are a kit-crafty type of thing. They made it easy for
kids to make something with beads.
These are still quite common and used to make bead projects. Just google
"bead looms" or :beading looms" for a huge selection and more information.
yup I remember using one of them in summer camp. I knew when I first
looked at it that I had seen it before, the second picture with the pin on
the center of the roller and the wing nut to hold the belt tight brought
This is a mechanical safety overide for a rocket engine, it fits between the
and a valve limiting the fuel when the 10 G mark is passed, or alternatively
it is a ping pong ball tester.
1537 - My first thought was some sort of RF connector, but then I saw
the size of this rather mysterious contraption and gave up on that idea.
The left side would appear to possibly allow the mounting of a motor or
engine or gearbox, so maybe this is a winch mechanism of some manner.
1538 - Assuming the opening is at the narrow tip of the box part, this
may be a fruit picker, possibly for cherries. If the opening is the
opposite trapezoid, it could also be a box for taking the offering in a
1539 - This looks vaguely like some ill-conceived arrowhead for hunting,
but it's much too large. The squared-off fins on the cone part where
the four arms attach aren't particularly aerodynamically shaped, so
(given the otherwise sophisticated finishing and machining) I doubt it
was intended to be part of a flying object. I'll go way out on a limb
and guess it's a top for a lightning rod.
1540 - Perhaps a cradle to support/display something, such as the neck
of a string instrument. If so, there would seem to be a missing strap
to go betwixt the dowels.
1541 - I'm guessing you're looking for something more precise than
"truck." Maybe this vehicle is intended to start airplane motors, by
engaging some mating connector on or near the motor. The fire
extinguishers on the back would fit well with this theory.
1542 - This appears to be either an air tunnel for testing airfoils and
such, or some sort of signaling horn or siren. The rather heavy shaft
and flat belt drive pulley would preclude rapid starting and stopping,
so I think the air tunnel is more likely than the horn.
Now to read other people's ideas.
"He is no fool who gives what he cannot keep to gain that which he cannot
I clean a lot of used keyboards. I stand them up on the end and spray
a fine mist of household ammonia to cut the grime. Sometimes it takes
several tries, because they are really nasty. Then I use a mist of
water to flush the loose crud from the keys & case. I usually do them
10 at a time, then let them dry for a week, but they can be used almost
immediately. That depends on how much you spray on one.
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