" Jogging is a "high-impact" exercise that places strain on the body, notably the joints of the knee. This is actually one of the basic reasons for doing the exercise, as the impact drives growth processes in the body . Some dropped jogging in order to take up "low-impact" exercises such as stair climbing. Jogging can be combined with other kinds of exercising. Special trails that combine them are called trim trails. Some people define jogging as an inefficient form of running which, for the given individual performing it, and all other conditions held constant, is less efficient than walking. Above a certain pace, running is a more efficient form of locomotion (requires less effort). Foss Running Camp Below that pace, running is less efficient than walking and makes no sense as a means of getting from point A to point B. A courier delivering a message on foot over 60 miles of road would expend more energy jogging the distance at a 13 minute mile pace rather than briskly walking it at the same pace. "

" Lowell chooses to leave Dewey in charge of the last dome, jettison it to safety, and destroy himself and the "Valley Forge" with the last of the onboard nuclear weapons. The final, ostensibly poignant scene is of the forest greenhouse tended by the sole remaining robot, with a battered watering can. Trivia Trumbull had been involved with creating effects for Saturn for "2001" and these were recycled for "Silent Running". The cult show "Mystery Science Theater 3000" began as a spoof of Silent Running. The interiors were filmed aboard the decommissioned aircraft carrier USS Valley Forge (CV-45). The original "Battlestar Galactica" series used stock footage of the Space Freighters in several episodes. On that show, they were called "Agro Ships," and were the source of all the food in the Rag-Tag Fleet. California Camp Running Initially there were three of them, but two were destroyed by the Cylons. As an hommage in the current incarnation of Galactica, there is one "Agro Ship" in the fleet, which is of a different, but clearly derivitive design. "