|Search||Hot Links||What's New!|
Please let me remind all of you--this
material is copyrighted. Though partially funded by NASA, it is still a private
site. Therefore, before using our materials in any form, electronic or otherwise, you need
to ask permission.
There are two ways to browse the site: (1) use the search button above to find specific materials using keywords; or,
(2) go to specific headings like history, principles or careers at specific levels above and click on the button.
Teachers may go directly to the Teachers' Guide from the For Teachers button above or site browse as in (1) and (2).
Insert a 6"- 8" feather in one end of the straw, gluing lightly, if desired. Find the balance point by holding the straw on extended finger so it will not tip; insert pin at this point and stick pin into eraser. Vane will move with the wind, always pointing in the direction from which the wind is blowing. Bind the pencil to post outdoors where vane can swing freely.
Send all comments to firstname.lastname@example.org
© 1995-2013 ALLSTAR Network. All rights reserved worldwide.
Updated: March 12, 2004