What's New?
This page will keep you up to date on the changes to the Magnet Man site so you don't have to hunt and peck to see what's new or different!
NOTICE regarding linking to this web site:
Links to http://www.execpc.com/~rhoadley/magindex.htm
no longer work as of Jan 2006.
Links to the http://my.execpc.com/~rhoadley/*.htm
are now redirected to
http://www.coolmagnetman.com/*.htm
as of Aug 2016.
Please use http://www.coolmagnetman.com/
or http://www.coolmagnetman.com/magindex.htm
for linking to this site.
If you have any questions, please contact me
at: [email protected] .
Please note: the information at the end of several articles refers to the part number of that item at the source indicated. Arbor is Arbor Scientific, ScientificsOnline is ScientificsOnline, AS&S is American Science and Surplus, EdIn is Educational Innovations.
Future
(some possible additions in the future)
Expand page on constructing the floating pie pan
experiment
Expand page about levitating an aluminum sphere above a coil
Expand page about levitating an aluminum sphere between two
coils
How to make a magnetic can crusher
How to make a simple 3 phase ac motor drive
How to build an aluminum can motor
What are you interested in?
06/05/20
Added https://www.homeadvisor.com/r/residential-electrical-circuit-help/
Added Past publications of K&J Magnetics Newsletter
02/26/17
Removed
www.magnetsales.com
Added
http://interactives.ck12.org/simulations/physics.html
01/01/17
Added Magnetic
Putty
11/26/16
Several changes were made including:
updated or removed broken links
added youtube video links to several of the
magnetic items
replaced Picosearch with SiteLevel
for the site-search
added pages
How
do magnets really work?
What
really is a magnetic field?
How
much energy does a magnet store?
Twelve
fundamentals of magnetism
Designing
magnetic circuits
Youtube
video and animation links
Magnets
in the news
Battery
Train
updated pentominoes
page with new puzzles and videos
12/14/13
Added http://www.overnightprints.com/magnets-for-kids
as a link on maglinks.htm
11/24/13
Updated first4magnets.com
as a sponsor
9/15/13
Updated first4magnets.com
as a sponsor
Corrected dead links
Expanded Magnet Math
5/26/12
Removed BuyMagnets.com as a sponsor
10/22/11
Added first4magnets.com
as a sponsor
Added "Rising Force"
to list of good books on magnetism
Updated the hits counter
chart.
6/2/11
Added BuyMagnets.com
as a sponsor
1/2/11
Added an aluminum pipe kit
Added toys for the
executive
Added source
for ferrofluid
Added Levitationarts
for levitating assembly
Added a magnetic toy
Updated the hits counter
chart. We passed 4 million hits today!
11/14/10
Added a North-South Magnetic Pole indicator circuit
Added info on how to buy a Hall
Effect Device
Added new levitators
Added new magnetic puzzles and toys
Added new magnetic base
Added new books
Added info on visit to Technorama
Added new non-magnetic toys and
puzzles
Added new links to magnetic art
Added new display with two DC electromagnets
Updated number of hits
5/29/10
Updated info in bio
12/21/08
Added links to Steve Spangler Science to page with
links to other sites and to suppliers
page
Added Shaw
Magnets to suppliers page
Added info on new MOVA rotating globe to page
- a very well engineered product
Disney store full of magnets - Magnetron
Lego store in Downtown Disney has magnetic frames
Added info on titanium being non-magnetic
Added Tetris Cube to page
Added photo of motor from hard drive
Link to Scott Joplin's Magnetic Rag
New caricature added
Updated the hits counter
chart. We passed 3 million hits at the end of August, 2008!
2/29/08
Added a link to Mag-Num
Consulting Services on page with links to other sites
Added info on new levitating globe
to page
Added info on mag-jig
to page
Added link to ScienceCastle.com
to page
12/20/07
Added a link to Applied
Magnets on magnet supplies page
10/29/07
Added a page about Magnets and Art
Added some graphics to help explain the Magnets
in Motion
Added a caricature made of me
Added info on tops
Added information about the perpetual
top
Added link on ideas for perpetual
motion machines
Added links on making your own generator
Added links on magnetic levitation
Added Ball of Whacks to page on
toys
Added photo of a string of 100
magnetic spheres
Added photos of an electronic
compass and a link showing how to build one
Added a super book, "Mondo
Magnets"
Added links on linear motors
Added new links to Christian Seminaries
and Biblical Studies
10/13/07
Updated citation information
Updated number of hits
Removed incorrect phone number for kaleidoscope
Updated link for Mike Gasperi's Lego
NXT robotics
9/16/06
Updated Lodestone
Industries on magnet supplies page (used to be
Quantum Magnetics)
Added LED Gyroscope Top and Cupid's Arrow to the electromagnetic
toys page
Added AcroBots to the magnetic toys
page
9/05/06
Added MagCraft
banner to magnet supplies page
8/12/06
Added the game Polarity to more
magnetic toys
Added balancing pen to more
magnetic toys
Added cell phone vibrator motor to DC
Motors
Added homopolar motor to DC
Motors - really cool!
Added new book by Dr.
Brauer to books page
4/26/06
Added update safety
notice
Added the notice above regarding linking to this web site
Added item to magnetic toys
Added globe to more magnetic toys
Added the Maxwell's Motor to DC Motors
Added European supplier
for NIB magnets
Added link to hyperphysics
4/03/06
Added items to executive toys
Added items to magnetic toys
Added info to more magnetic toys
Added items to electromagnetic toys
Set up images so you can click on them to start the animated
gif file in Magnets in Motion
Added better images for these pages: field01,
field02, field03, field04,
field05, field06, field11,
field12, field13
Added images of fields around a
wire and pairs of wire that carrying current
Added references to videos in section of books
and videos
Added information on how magnets
are made
Cleaned up the magindex page
12/09/05
Modified links and added banners to:
SargentWelch
lots of science supplies
ScienceKit
lots of science supplies
Ward's
Natural Science lots
of science supplies
10/27/05
Changed Edmund links to ScientificsOnline
Added banners for ScientificsOnline
08/31/05
Added page on how to care for your
magnets
Modified page on magnetic fields
Added page on visualizing magnetic
fields
Modified page with the gallery of
magnetic fields and added 106 diagrams
of fields
Kept old gallery of fields, but moved to maggallery
Added page on how to shield a magnet
Added information on how to make the levitation
kit stable electronically
Added information on making a monopole
Added information on the Jumping Ring
experiment
Added another version of the Soma cube
Added Wooden Puzzles to the Executive
Toys
Added magnetic rocks to things
you can buy
Added information on magnetic paint
Added links to magnetic chuck
sites
Added Google Search and
Ads to the ends of most pages - helping you find stuff
07/17/05
Added Google Search and Google Ads to certain pages
Added links to link page
Created mirror of this site at www.coolmagnetman.com
which is much easier to remember
03/19/05
Added levitation kit experiment
from Guy Marsden
03/12/05
Updated address for "Just A Lil'
Toy Store"
Added link to a Science
Fair information site
Added links to ShopPBS
Science & Math
Added link to site with electromagnetic suspension kit http://www.arttec.net/Levitation/Kit.html
Added Magnetoids to list of cool
toys
Fixed typos and removed broken links
01/16/05
Updated hits page
06/26/04
Added more animated gifs to Magnets
in Motion, showing how fields move with magnets
Added magnet suppliers and links.
05/30/04
Added Magnets in Motion, showing
how fields move with magnets
01/15/04
Added formulas and octahedron to "Make-Your-Own-Sculptures"
Added photo of magnetically
rechargeable flashlight
Added photo of new floating globe
Added http://www.rare-earth-magnets.com/
as a source for magnets
Added Magnet
University to links page
12/15/03
Added more photos of "Make-Your-Own-Sculptures"
Added photos of experiment showing diamagnetic
property of water
Added photos of experiment with a doorbell
Added new patent and schools to vita
12/06/03
Added "Previous", "Home",
"Next" links to the top of each page
Corrected some misspellings and other minor changes
Added links concerning biomagnetic
therapy
Added virtual
physics link to links page
Added another virtual
physics link
Updated link on maglev
trains (this has the info from http://bmes.ece.utexas.edu/~jcamp/physics/)
11/22/03
Added Geomag toy
Added Joe Bender
Added diamagnetic levitator page
and to toys
Added Amazing Magnets
as a source for magnets
Added "Make-Your-Own Sculpture"
Added "Highly
Recommended for Educational Usefulness" award from Schoolzone
to the main page
Added Arabesk link to Executive
Toys
Updated the hit chart
Updated link to Dowling
Magnets
07/05/03
Added search engine for web site
Filled in information on Hall
Effect devices materials
Added a digit to the hit counter
Removed a dead link from magfield.htm
Updated the hit chart
02/22/03
Added page on How do Magnets Work?
Fixed link for science fair
project on magnetic fields
Added links to resources for teachers
Added schematic for the simple
gaussmeter
02/02/03
Added the Home-Built Magnetic
Levitator
Added a big list of uses for
magnets and electromagnets around the house and car
Added more photos and text about the simple
AC motor
Added link to a commercial
magnetic levitator on page
12/26/02
Added an Easy Electromagnet
Experiment
Added Make a Speaker!
Added a link to the Pentominoes
page
Cleaned up the schematics for the gaussmeter
and options
12/19/02
Added the Ball Bearing Launcher
experiment
11/29/02
Added links to amazon.com
for books on magnets
Added link to the Magnet
Shop in Australia
Added SciLink to the page describing the pendulum
experiment
Added info on FREE
Student Version of Ansoft's Maxwell 2D software
Added info on collecting micrometeorite
dust
Corrected some of the hypertext links and spellings
11/28/01
Corrected spelling errors (clever, not cleaver!)
Added a couple of new links about magnetic suspension and sculptures
Added links for high voltage
kits and for software for simulating
electrical circuits
Additional information on where to find magnesium
(Thank you to those who have written with the above
suggestions and corrections!)
By the way, it appears that the link to http://bmes.ece.utexas.edu/~jcamp/physics/
is no longer active. This was an excellent site. I'll try to see if
it has been moved to another location or if I can publish a copy of it.
04/20/01
Added SciLink to the page describing the copper
pipes experiment
Updated chart showing number of
hits
Added photos and descriptions of more DC
motors
Added photos of "The Plank" to Electromagnets
Added photo of a solenoid from a dishwasher to Solenoids
Added photos of battery powered electromagnet to Cool
Electromagnet Toys
Added photos of dissecting a speaker to Electromagnets
Added photos of a Jacob's Ladder in a box to Electromagnets
Added photos of using BB's to measure the strength
of magnets
Added photos of the Levitron
Perpetuator working
Added photos of a Perpetual Calendar
using magnets
Added photos of unusual configurations with superconductors
Added photos of the Zero Gravity
Levitator toy, here too
Added photos of a demo of Fleming's
Left Hand Rule
Added photos of transformer action using AC
electromagnets
Added info on the sun's magnetic field
flipping every 11 years at the peak of the sunspot activity
Added photo on an Atomic Clock
01/01/01
Fixed patent links since the site changed from IBM
to delphion.
Expanded and modified page on inexpensive
Gaussmeter.
Showed the three pages of Gaussmeter information on the magindex.htm.
Added link to http://www.greatsouth.net/
for minerals on What is attracted to magnets?
12/22/00
Added photos of Meissner
effect.
12/15/00
Greatly expanded page on What
is magnetism?
Added page on What types of magnets
are there?
Added page on What affects the
strength of a magnet?
Expanded page on What is near the
Geographic North Pole, ...?
Expanded page on Magnetism in space
Added page on Is there free energy in
magnets?
Greatly expanded page on What is
attracted to magnets?
Greatly expanded page on How strong are
magnets?
Greatly expanded page on What do
magnetic fields look like?
Added page on Magnet math
Added page on Magnetism and biology
Expanded page on Superconductivity
Added page on Solenoids.
Greatly expanded section on Experiments with motors
Added an item to the Pentominoes page.
Added some more cool new items to the end of the page of Executive
Toys.
Added info on brushless DC motors
and fixed link on page.
Added the 
key to items that have experiments you can buy or build.
I think I touched just about every page.
7/23/00
Added some cool new items to the end of the page of Executive
Toys.
5/23/00
Corrected the hit counter. Added 40,000 to the present
number.
Fixed the link to http://www.oz.net/~coilgun/levitation/home.htm
4/9/00
Added link to the list of sites on AC
motor design
Noted change in the hit counter. It was reset sometime
in March 2000.
2/19/00
Added the page on Types of
Magnets.
Added the three navigation boxes (previous page, home page,
next page) to each page. So now you can visit every page in this site by
clicking on the "NEXT" button at the bottom of each page. (Hope
you like those horseshoe magnets!)
Removed a dead link.
Added to list of ways to levitate
objects.
12/3/99
Added some great links to sites on
the science of magnets, how to design magnets, and magnetic glossaries.
Added another link to show the North
and South poles of Earth.
Added link to a handbook on Copper
Pipes (Tubes).
11/12/99
Added science fair project information to page on How
strong are magnets?.
Added project information to page on Suspended
Objects.
Added a few more choice links to
the list, again.
11/11/99
Added items to Executive toys without
magnets, including a Jacob's Ladder and Drinking Bird.
Added items to Cool toys you can buy.
Added a section on magnetic minerals to What's
attracted to magnets?.
Added an improvement to Magnetic Plumb.
Added page and links on Magnetism in
space.
Added pages and links on AC and DC
motors. Important addition! Don't miss this!
Added several books to the list.
Added a few more links to the
list, too.
Added a couple of field views to
the list and a link with animated fields.
4/18/99
Added this page on What's New.
Added photos of large floating donuts
and other smaller donuts.
Added free magnetic field FEA link.
Added links on Suspended Objects.
Added link to pioneers in
electromagnetism.
Added link to science museums.
Added link to Magnetic Formulas.
Added photo of another chaotic pendulum, ROMP.
Added photo of magnetic sculpture toy.
4/10/99
Added page on Modifications to the
Gaussmeter.
3/25/99
Added bio to the Demo page.
Added link to "How Strong are Magnets?" page.
Added links to "Who else has cool stuff on
magnets?" page.
3/22/99
Added page on building a Gaussmeter.
2/16/99
Added information on where to obtain items for levitating
train.
Added links to "Suspended Objects" page.
Modified links page.
12/22/98
Added pages on pentominoes, puzzles and executive toys
without magnets.
Added more magnetic toys to the other pages.
12/8/98
Added links to pages on earth's magnetic poles and material
attractions.
10/24/98
Modified reference to Grolier Encyclopedia.
Added link to future Gaussmeter page.
8/18/98
Added plots of fields from simulation program, Ansoft.
6/20/98
Put Magnet Man page on the net.
