Copyright © 2019 Robert J. Ballantyne. All rights reserved. Use of and/or registration on any portion of this site constitutes acceptance of my Terms of Use and Privacy & Cookies Statement. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Robert J. Ballantyne. We may earn a portion of sales from products and services that are purchased through links on the site as part of affiliate partnerships with retailers.