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the Bell Jar
welcomes hobbyists, educators and the scientifically |
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Ever dreamed about building an x-ray tube? Or coating your own telescope mirror? Maybe even constructing an electron microscope? Perhaps you are a high school science teacher who would like to introduce simple yet interesting electron, ion and plasma physics experiments and demonstrations into your classroom. People the world over are involved in projects like these and the common thread is the use of vacuum technology. the Bell Jar is the resource that you need to join this network of hobbyists, students and educators.Please check out the VPAL (Vacuum Principles and Applications Laboratory), a new educational product from The Science Source/Daedalon.Updates as of 10/06/08News about this SiteA new article A Primer on Using Ace Threds has been added to the Articles & Publications page. See the listings under Volume 11. A new topic area, Vacuum Training Systems, has been added to the forum. This should be of great interest to teachers who have MKS, Varian, TSS/Daedalon, AVS or similar vacuum teaching systems. Click the Forum link to the left. I have enabled online shopping through PayPal for the custom items on the Chambers & Supplies page. A link to Rolland Hower's Smithsonian book on the freeze drying of biological specimens is on the Books page as well as to the left, under the menu. Long out of print, a number of copies are available through Amazon sellers. It's one of my favorite vacuum process books. An Updates page has been created as an aid to finding out about what's new on the site. Thanks to all who have participated in the Feedback & Future Directions Survey. The survey is now closed and the results are summarized on the Updates page. The years 6-10 compilation of articles is coming along more slowly than anticipated. Please check here for updates on status. |
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the Bell Jar Content added after 2007 will be free. To help keep this site growing, please consider donating whenever you see something you really like. Orders for books and other merchandise made through Amazon.com also provide support to the Bell Jar. |
| Other Topics of Possible Interest | ||
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Vacuum Debubbling Systems for gel candlemaking and other hobby and commercial deairing applications. Newly Updated! |
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Small boats of the homemade and factory ilk plus Steve's low power jet drive project |
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| Science & Science Policy News | |
AAAS EurekAlert! |
Exposing Junk ScienceJunkScience.com and Heartland Institute |
| Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children's children what it was once like in the United States where men were free. President Ronald Reagan | |
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©2008 Stephen P. Hansen, the Bell Jar |
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