[YAPA] CoolStuff: Make a motor out of the stuff in your desk!

[Arbor Scientific]

CoolStuff Lite Volume #33 

*_In this Issue_* 

_*Make a motor out of the stuff in your desk!*_ 

You've seen the World's Simplest Motor (TM). Now you can make one
that's even simpler than that, with materials you probably already
have on hand! 

World's Simplest Motor™ vs. The Junk Drawer Motor 

Watch the video and see how it works. _*See it Now*
<http://cts.dundee.net/t/29341217/112638951/76315/0/?u=aHR0cDovL3d3dy5hcmJvcnNjaS5jb20vQ29vbFN0dWZmL05ld19Db29sU3R1ZmZfQXJ0aWNsZXMvQ18zM18xLmh0bQ%3d%3d&x=51d23afb> 

_*How it Works!*_ 

This simple Homopolar Motor shows how moving charges (an electric
current) experience a force when they move through a magnetic field.
When the wire is in place, current flows from the battery’s positive
terminal, through the wire, radially through the magnet, and into the
battery’s negative terminal. 

The direction of the force is perpendicular to both the direction of
the current and the direction of the magnetic field, as demonstrated
by the Left Hand Rule. 

- The magnetic field is vertical, relative to the table. 

- The current is radially inward at the lower point of contact, toward
  the center of the battery. 

- The resulting force on the current-carrying wire is tangential. The
  tangential force, or _torque_, causes the wire to rotate. 

Note that only one connection to the magnet is necessary for the
motion to occur. Creating two connections doubles the resulting force,
creating a faster spin. Try bending the wire into different shapes,
such as a spiral that rests one end on the positive terminal and curls
around the battery. 

Read More
<http://cts.dundee.net/t/29341217/112638951/76315/0/?u=aHR0cDovL3d3dy5hcmJvcnNjaS5jb20vQ29vbFN0dWZmL05ld19Db29sU3R1ZmZfQXJ0aWNsZXMvQ18zM18xLmh0bQ%3d%3d&x=51d23afb> 

_*Don't have time to read the article, then watch the Video Clip! *_Click
here to go directly to the video explanation of how the Homopolar
Motor works and get the facts in 60 seconds! See it Now
<http://cts.dundee.net/t/29341217/112638951/76315/0/?u=aHR0cDovL3d3dy5hcmJvcnNjaS5jb20vQ29vbFN0dWZmL05ld19Db29sU3R1ZmZfQXJ0aWNsZXMvQ18zM18xLmh0bQ%3d%3d&x=51d23afb> 

_*Summer is almost here; how about a little splash in class? *_Whatever
the age, Bottle Rockets are a great lab activity for student's to
explore motion, acceleration and even trigonometry. Single and Double
Bottle Rocket launchers, or the Hydrogen Fuel Rocket, we have everything you
need to set student's imaginations soaring into summer! Read more
<http://cts.dundee.net/t/29341217/112638951/76316/0/?u=aHR0cDovL3d3dy5hcmJvcnNjaS5jb20vU2VhcmNoUmVzdWx0LmFzcHg%2fQ2F0ZWdvcnlJRD0xMjI%3d&x=c2859ce4> 

*_Free Online Lab Activities _*Introducing the free online lab manual,
a downloadable collection of reproducible, ready-to-use labs for
physics and physical science. Labs in this growing collection are
designed to cover important key concepts, and may be downloaded and
used in your classroom. Read more
<http://cts.dundee.net/t/29341217/112638951/76317/0/?u=aHR0cDovL3d3dy5hcmJvcnNjaS5jb20vb29sU3R1ZmYvQXJib3JMYWJzL0FTTGFic19Ib21lLmFzcHg%3d&x=685ef718> 

_*Search Arborsci.com <http://cts.dundee.net/t/29341217/112638951/51908/0/?u=aHR0cDovL3d3dy5hcmJvcnNjaS5jb20vU2VhcmNoLmFzcHg%3d&x=acf93e7e>*_ 

Arbor Scientific
PO Box 2750
Ann Arbor, MI 48106
(800) 367-6695 

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