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Nelson Education > School > Elementary Science > Science & Technology 8 > Student Centre > Web Links > Unit 3
 

Web Links

UNIT 3: MECHANICAL ADVANTAGE AND EFFICIENCY

Section Links
3.1
Designing Machines
Bad Designs — Can opener.  Visit this site and find out how to design a good can opener.

Starfrit MagiCan Can Opener.  Thanks to its side-cutting action, MagiCan leaves a lid with no sharp edges and no metal shavings.

Can Opener cordless (one-handed use).  This lightweight, rechargeable One-Handed Cordless Can Opener requires no pressure to operate once the "Power Pierce" cutter has been activated.

Edlund Company — Can Openers.  The Edlund Company develops and manufactures innovative equipment for Foodservice such as can openers, scales, can crushers and kitchen accessories/equipment.

3.2
Levers: How They Work

Cantilever Geometry.  You cannot understand bicycle brakes unless you understand mechanical advantage. Go to this site to learn all about tuning your bike's brakes.

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3.4
Designing Machines
Canadian Space Resource Centre, Ontario. SpaceNet provides you with information about Canada's efforts in space. SpaceNet, a website at Marc Garneau Collegate in Toronto Canada, provides information about the Canadian Astronaut Program, the development and highlights of the shuttle's Canadarm

Chris's Electronically Prehensile Robotic Arm.
Visit this site and learn how to build your own Robotic Arm.

Build A Robotic Arm.  Students design their own robotic arms and use them to perform a simple but sensitive task.

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Artificial Intelligence — Home Page.  The starting place for exploring Artificial Intelligence.

Rat's brain is taught to control robot arm.  The science fiction idea of a disembodied brain controlling a bionic body comes a step closer  with the first demonstration of brain
signals directly controlling a robot arm

Animated Prosthetics.  Visit a company that makes advanced prosthetic arms.

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3.6
Mechanisms in Giant Machines
Surface mining: Draglines, Electric mining shovels. Visit Bucyrus-Erie to see the manufacturer of the biggest machines in the world.

Classic Construction Models.  At the other end is this model company that makes scale models of Draglines and Power Shovels

Australian Scientists Develop World's Largest Robot.  A team of Australian scientists is developing the world's largest industrial robot — a massive beast 75 meters tall, weighing 3500 tons and able to devour 150 tons of rock in a single bite.

3.7
Moving Efficiently
Friction - Science Museum of Minnesota. Vollis Simpson is an artist who creates kinetic sculptures and whirligigs. He uses bearings in all of his spinning pieces so that they move smoothly. An experiment here is a nice introduction to friction and bearings.

The Hovercraft Club of Canada.  Here you will find a brief introduction to the club, how to contact and links to a few other interesting hovercraft pages from around the world.

Teva Sport Sandals.  With features like proprietary Spider Rubber – the stickiest, grippiest, grabbin-est bottomsoles on the planet.

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3.8
Friction and Mechanical Advantage
Amusement Park Physics — Roller Coaster.

Raybestos Tech Center.  Raybestos Products Company is one of the largest developers of friction material products in the world. Visit their site to find out about friction products.

3.11
Testing Shoes
AAOS On-Line Service Athletic Shoes.  Go to this site to learn what foot doctors recommend about sports shoes. Provides a guide for designing your own.

All-New Sport Shoe Traction Tester.  This new device can apply dynamic forces to a test foot shod with an actual developmental shoe product in a manner analogous to what goes on in popular athletic contests, and it does its thing on the actual playing field (whether natural or synthetic turf) or other outdoor surface, such as a hiking trail, clay tennis court or dry river bed.

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3.12
Force, Area and Pressure
Pressure Force per unit area.  'Pressure' is a term often used in everyday life, for example, we frequently speak of tire pressure, air pressure, blood pressure, water pressure and so on.

3.14
Squeezing Liquids and Gases

3.15
Pressure in Fluid Systems

Mechanical Advantage From A Hydraulic System.  Mechanical advantage is explained in terms of
work input equals work output. Good graphics

History of Hydraulics.  From the Iowa Institute of Hydraulic Research.

Roman Waterworks and Hydraulic Engineering. Offers photographs and a collection of articles pertaining to the aqueducts and water supply
system of ancient Rome.

The Pneumatic Tube & The History of Pneumatic Devices.  A pneumatic device is any of various tools and instruments that generate and utilize compressed air. Visit this site to learn more about pneumatics.

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3.16
A Hydraulic Solution for a Pain in the Neck

The EasyChair WorkStation.  Here's someone who wanted to relax while he surfed the Net. He invented this monitor arm.

Making Money In Technical Writing

What if Dr. Seuss Wrote Technical Manuals?
If a packet hits a pocket on a socket on a port,
And the bus is interrupted as a very last resort,
And the address of the memory makes your floppy disk abort,
Then the socket packet pocket has an error to report! 

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3.17
A Student-Friendly Classroom
Healthy Schools.  A panel discussion between experts about making a classroom healthy.
3.18
Designing for Peoplewith Special Needs
ABLEDATA.  Explore the world of assistive technology.! A searchable database of 25000 products that assist the disabled.
3.19
Mountain Bike or Road Bike?
The Exploratorium's Science of Cycling Home Science from a cyclist's perspective. Check out the Aerodynamics, Drives and Gears, and Frames and Materials pages.

The Exploratorium's Skateboard Science  Even skateboarders use science. The Trickscience page is particularly interesting.

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3.20
The Life of a Product
Recycler's World .  A commercial site for recycling companies. See what the business world is doing about recycling.

The Consumer Recycling Guide: Recycling Obscure Materials.  Simple instructions are given on recycling computer floppy discs, computers, eyeglasses, smoke detectors, styrofoam packing, compact discs, cameras, holiday cards, batteries.

Computers for Schools.  An educational, business and federal community partnership that channels surplus computer equipment and software to Canadian elementary and secondary schools.

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3.21
A World Without Cars?
Car-Free Times.  Many examples, in Europe, of cities that have gone car-free.

One Carfree Life.  Read about one person's choice to live his life without a car.