Hi all: Yesterday, I saw a VCR video tape that that a volunteer took of us marking the Kitt Peak sundial. The best part of the movie was of the penumbra rapidly moving along the projection screen just before, during and after the morning style shift when the bottom style shifts to the east style that is higher up and further away. During the shift, Bob kept moving the shadow sharpener back and forth in one hand, and he kept measuring the penumbra's width with a ruler he held in the other hand. Its width changed from 30cm before to 55 cm after and it took about a minute for the shift to occur.
The movie was even better at fast forward! Except at fast forward the VCR has those annoying horizontal moving distortions on the TV screen. Do you think I can eliminate this distortion by converting a VCR tape into digital form (a DVD or something similar?) I also want to edit out the bad parts. I'd really like to include my little style shift movie in my PowerPoint presentation for the NASS conference, but I'm not sure how to do it. (Somebody told me that there are files called mpegs, like jpegs but for movies). Thanks John John L. Carmichael Jr. Sundial Sculptures 925 E. Foothills Dr. Tucson Arizona 85718 USA Tel: 520-696-1709 Email: [EMAIL PROTECTED] Website: <http://www.sundialsculptures.com> -