A%20Rube%20Goldberg%20Invention - PowerPoint PPT Presentation
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A%20Rube%20Goldberg%20Invention
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Simple machines make work easier Simple Machines Levers Pulleys Inclined planes Wedge Screw Wheel and axle Simple Machines Are used to hunt, gather plants, ... – PowerPoint PPT presentation
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Title: A%20Rube%20Goldberg%20Invention
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A Rube Goldberg Invention
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Rube Goldberg
- This is Websters definition
- A contrivance or method to accomplish an
apparently simple task in an extremely complex
way - So much for the K.I.S.S. method!
- (Keep It Simple Sweetie)
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Who was Rube Goldberg?
- He lived at the turn of the last century.
- He loved poking fun at all of the modern
conveniences that were being developed at the
beginning of the 20th century.
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A little more about Mr.Goldberg
- Reuben Lucius Goldberg studied at the University
of California at Berkeley. - After graduating in 1904, he started working as a
sports cartoonist for the San Francisco
Chronicle. - In 1907 he moved to New York after selling his
Sunday half-page strip 'Mike and Ike'. This comic
didn't generated much response. - He eventually landed a job at the New York
Evening Mail. - Apart from drawing comics, he also took a shot at
vaudeville, becoming a stand-up comedian and
fortune-teller in 1911!
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- Rube Goldberg gets his think-tank working and
evolves the simplified pencil-sharpener. - Open window (A) and fly kite (B). String (C)
lifts small door (D) allowing moths (E) to escape
and eat red flannel shirt (F). As weight of
shirt becomes less, shoe (G) steps on switch (H)
which heats electric iron (I) and burns hole in
pants (J). Smoke (K) enters hole in tree (L),
smoking out opossum (M) which jumps into basket
(N), pulling rope (O) and lifting cage (P),
allowing woodpecker (Q) to chew wood from pencil
(R), exposing lead. Emergency knife (S) is
always handy in case opossum or the woodpecker
gets sick and can't work.
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Rube Goldberg has inspired many inventors.
- Enjoy this short movie
- Its meant to be an elaborate way to get a very
simple thing done
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Safety Device for Walking on Icy Sidewalks
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Simple Machines
- Rube Golberg used a variety of simple machines
put together in a complex way to perform a simple
task.
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What is a Simple Machine?
- A simple machine has few or no moving parts.
- Simple machines make work easier
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Simple Machines
- Levers
- Pulleys
- Inclined planes
- Wedge
- Screw
- Wheel and axle
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Simple Machines
- Are used to hunt, gather plants, make clothes,
build shelter, and protection - They copy nature such as
- Beavers cutting logs
- Woodpeckers pecking on a tree trunk
- Moles clawing their way through the dirt
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Levers
- Levers make it easier for people to lift heavy
objects or open things. - The object being moved or opened is called the
load. - The force that is exerted is the effort.
- Fulcrum is the fixed point that allows a pivot to
occur. - In every lever there is an ELF.
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Levers-First Class
- In a first class lever the fulcrum is in the
middle and the load and effort is on either side - Think of a see-saw
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Levers-Second Class
- In a second class lever the fulcrum is at the
end, with the load in the middle - Think of a wheelbarrow
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Levers-Third Class
- In a third class lever the fulcrum is again at
the end, but the effort is in the middle - Think of a pair of tweezers
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Inclined Planes
- An inclined plane is a flat surface that is
higher on one end - Inclined planes make the work of moving things
easier - Ramps are inclined planes
- You must travel a greater distance
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Screws
- A screw is an inclined plane wrapped around a
shaft or cylinder. - The inclined plane allows the screw to move
itself when rotated.
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Wedges
- Two inclined planes joined back to back.
- Wedges are used to split things.
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Wheels and Axles
- The wheel and axle are a simple machine
- The axle is a rod that goes through the wheel
which allows the wheel to turn - Gears are a form of wheels and axles
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Pulleys
- Pulley are wheels and axles with a groove around
the outside - A pulley needs a rope, chain or belt around the
groove to make it do work
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Gears
- A wheel with teeth
- Used to transfer power
- One gear cannot work on its own
- Many gears are connected with chains
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Compound Machines
- Simple Machines can be put together in different
ways to make complex machinery.
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Yay! Check out this link!
- Ruby Awards
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Here are Some Pictures to Spark Creativity
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Check This Out!
- This Too Shall Pass
