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

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Feature

Uwe Treske, an 18 year old German high-school student, was one of the winners from the 2004 Intel International Science and Engineering Fair. His winning entry was a low cost Scanning Tunnelling Microscope or STM which allowed him to obtain three-dimensional atomic-scale profiles of metal surfaces. The technology that is involved in the DIY version of an STM should not be beyond the capabilities of a skilled amateur.

STM Gallery

Moving Atoms --- Welcome to the STM Gallery

Scanning Tunneling Microscopy --- A Tutorial

DIY STM

The STM Construction Kit

STM --- A DIY project by Jürgen Müller

The Design and Construction of a STM

Getting Started on Home Brewing an STM

Jim Rice’s Nanotechnology: The Homebrew STM Page

Scanning Tunneling Microscope --- a thesis by Matthew Ellis

Rastertunnelmikroskopie (STM)

Scanning Tunneling Microscopy --- From Birth to Adolescence

Exploring The Nanoworld --- contains broken links.

Uwe Treske‘s Low-cost Rastertunnelmikroskop (in German)

The McAllister Scanning Tunneling Microscope --- A commercial unit.

Exploring the Nanoworld with LEGO^® Bricks --- A 66 page e-book.

Mapping the Unknown.

Would you like to have a chance to do real science with NASA? If so, have a look at their Deep Impact Mission Amateur Observers' pages.

Here is an informal overview of lab-created gemstones, with some hints on how you might be able to do this yourself.

The 3-DVG Page shows you how to use your fingers to turn any color magazine picture into 3-D

It might be advisable to look at Akiyoshi Kitaoka’s cautions before looking at his collection of online optical illusions.

The Radar and Stereoscopy tutorial has an introduction to 3D viewing.

An Introduction to Color --- What is color?

The Instruments and Imaging Section of the British Astronomical Association’s web site has an extensive collection of various amateur and professional equipments.

Martin J Powell's Aenigmatis web site contains sections on astronomy, prehistory, archaeoastronomy.

WJ's Infrared and Photography Homepage is a vast resource of links that is related to all areas of photography.

Get a start in vermicomposting at the City Farmer’s web site.

Climate Change --- From Natural Resources Canada.

Saving the Planet --- a DIY guide from the Science Museum, London.

“We left reality when we believed the ‘infinite earth hypothesis" --- More thoughts on ozone depletion and global warming.

The Greening Earth Society is a special interest group that is comprised of rural electric cooperatives and municipal electric utilities, their fuel suppliers, and thousands of individuals, presents an alternate view of global warming.

Christopher Scotese’s Paleomap Project allows us to visualize how the Earth’s climate has changed over the past 1100 million years.

The Arctic.

Researchers have found that hair follicles are an excellent source of stem cells.

Hurry up! There’s still time to enter the Poster Competition for World Year of Physics. The deadline is 31 May 2005.

Andrew Yue of the University of Texas at Austin has compiled a nice collection of sites that offer Physics Applets and Online Courses.

The Make Gizmos site has a collection of simple science demonstrations.

SLIME! What kid doesn’t like slime?

The Explorations 4 Kids Directory page of the A to Z Home's Cool Home Schooling Web Site has a useful selection of science experiments and activities.

Robert Filler’s Laser Development Module for the 8th Grade is a collection of 5 laser based activities.

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

Hobbyists that are involved in operating remote controlled airplanes, boats and cars often use a device called a servo to control the action of their device. Basicx sells a nice looking 8 cannel servo controller for $39.95 US and high torque servos for $14.95 US. Check them out. They might prove useful in one of your projects.

MAKE: is the first magazine devoted to digital projects, hardware hacks, and D.I.Y. inspiration.

On The Lighter Side

James Larsson’s clock is based on the natural decomposition of a prawn sandwich and manages to track UTC (+/- a few hours).     8-)

Where is the Last page of the Internet located? Perhaps it’s HERE!

From The Far Side

Have a look at Simon Conway’s theory --- The Discon Model of Matter.

Pharaoh's Pump --- another “Pyramid theory”.

Ramblings and more ramblings!

Have any of you ever visited Mexico's La Zona del Silencio or Zone of Silence?