A Gift to His Wife (IMAGE) DOE/Sandia National Laboratories Caption Johny Francis sees the success of the new watering system on his ranch before his passing earlier this year. The arrow indicates the location of the tank that gravity feeds drinkers around the ranch. Credit (Photo courtesy of Mike Lisk) Usage Restrictions with courtesy License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.