No. 89 --- 11 February 2005

Ralph J. Coppola --- r_j_coppola@hotmail.com

SAS Disclaimer

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Feature

Probably the average DIY amateur scientist or basement tinkered would never consider trying to build an internal combustion or steam engine from scratch. Even the simplest model would prove too complex for most of us. But is not so with the Stirling Engine. With a few common items, such as tin cans and balloons, the experimenter should be able to kludge together a working Stirling engine in a few hours.

I have assembled a few Stirling related links that should help to get you started.

The Free Dictionary’s entry on Stirling Engines.

Freeenergynews.com’s Stirling Engine links.

Will Rausch's Stirling Engine Links

The Stirling Engine Society

American Stirling Company

Also, see Scientific American’s "The Amateur Scientist" column:

  • "Experiments with the External-Combustion Fluidyne Engine, Which Has Liquid Pistons" by Jearl Walker, April 1985.
  • "A Backyard Version of the Stirling Engine Can Be Built with Common Materials" by Jearl Walker, January 1990.

You should be able to adapt one of the following DIY backpacking alcohol stoves to power your Stirling Engine.

Also, see Shawn Carlson’s “Lab Notes” from 16 November 2001 describing his DIY alcohol lamp.

Editor’s Note: Readers who construct functional Stirling engines are encouraged to send JPEG photographs to the editor for possible publication in The Citizen Scientist. Please type “Stirling engine” in the subject line.

Wanderings

See Wikipedia’s answer to the question What is an experiment?

Dynamic Patterns Research enables the amateur scientist to explore their creativity in science.

Jim Darus has a few interesting DIY items on his site. First he looks at a Hilsch Vortex Tube (see Wanderings 07 May 2004). Then he gives his account of his first attempts at melting aluminum in his backyard foundry and his improved design.

The ATM site is a repository for resources and techniques for the amateur DIY telescope maker. See Roger Ceragioli’s Refractor Construction Page for instructions of how to grind and polish a refractor lens and have it work well.

Canada’s One-Tonne Challenge asks its citizens to try and reduce their annual greenhouse gas (GHG) emissions by one tonne.

Discover Circuits is a collection of more than 8000 electronic schematics spread across 500 different categories.

Science101.com is a gateway to more than 20,000 Internet science sites.

PSIgate is an on-line service offering access to high quality web resources in the physical sciences.

Paleotechnics provides a look at the possible pigments that were used by early people for “rock art”.

Kite Life.com Magazine is a leading source of on-line information about kites and kite flying.

The Christian Science Monitor reports that corn and other common crops are being used to remove heavy metal contaminants from mining tailings.

One of my favourite tops may be found at The Science Desk from America's Test Kitchen.

An international consortium has just released the first complete DNA sequence of a tree, the black cottonwood or poplar.

The Molecular Expressions website is well worth a visit. Especially interesting is Secret Worlds: The Universe Within. This feature allows you to view the Milky Way and then zoom towards Earth, in successive orders of magnitude, until you enter the DNA of an oak leaf and beyond.

First there was CSI, then CSI Miami, followed by CSI NY and NCIS. How many cities are left? 8-)  While you are waiting for future spin-offs, you can visit the University of Leicester’s Virtual Autopsy site. All kidding aside, this site was designed as an online teaching and study aid.

Keep an eye on some of the sea critters at the Monterey Bay Aquarium with their live web cams.

The Virtual Space-Time Travel Machine site offers a gateway between art and science and mathematics with more than 1,500 still pictures and animations.

Space.com reports that the White House is pulling the Hubble Servicing Mission funding from its 2006 Budget Request.

Splashdot --- Science news for nerds

DONUT ---- Direct Observation of NU Tau--aka--Searching for the Tau Neutrino.

The Kids Room

YES Magazine reports that the 4th Annual ROV (Remotely Operated Vehicle) Competition for High School & College Students, sponsored by The Marine Advanced Technology Education (MATE) Center, will be held from 17 to 19 June 2005 at NASA’s Johnson Space Center Neutral Buoyancy Laboratory in Houston, Texas.

A team of three young Canadians women share top prize at the 2003 ROV Design Competition at MIT in Boston, 19 to 23 June 2003.

This is the same team that took 3rd place at the 2002 contest, with another ROV, at the Kennedy Space Flight Center, Florida.

Note: Due to airline security, they had to completely dismantle their ROV before they were allowed to board the airplane for Florida.

Yes Magazine has a section devoted to a collection of simple DIY science projects and demonstrations.

The Journal of High School Science is a “paper publication” containing both student and professional articles.

NASA's Stennis Space Center's Office of Education shows us how to construct an inexpensive DIY Kite Aerial Photography set up.

Davidson College (Davidson, North Carolina) has a collection of on-line virtual chemistry experiments and exercises.

The Science News for Kids web site offers timely items of interest to kids, accompanied by suggestions for hands-on activities, books, articles, web links, and other useful materials.

The Experiment.com web site contains links to science fair project ideas and “how to” tips.

A few of George Stimson’s students constructed a web page of Fun Science Project Ideas.

NASA’s Glenn Research Center has a nice Beginner's Guide to Aeronautics.

The Education Office, at Fermilab’s Lederman Science Center, offers a wide collection of student and teacher resources.

Suppliers

Being listed here does not constitute an endorsement by SAS or me of any information, product or service.

Wale Apparatus Company is a manufacturer and distributor of scientific glass blowing tools, supplies, equipment and glass.

Sphere Research Corporation is a source of surplus photomultipliers and phototubes and other items that may be of interest to the amateur.

On The Lighter Side

Forrest forwarded the Flash Mind Reader to me. Can anyone figure out how it works?

Are they or aren’t they?

From The Far Side

The Farshores.org, Ancient Dimensions and The Anomalist contain a lot of interesting reading. Some of it is factual while other items are definitely “From the Far Side.”

The Search for Atlantis, A Skeptic Magazine article by Pat Linse.

The Zetas are a group of Service-to-Other Beings who are assisting this planet and its people. Find out all about them on the Zetatalk web site.


   
Copyright 2005 by Society for Amateur Scientists