We ask you to skipped ahead to the 5 minute point of the video to the start of the show. (blackwestchester.com)
When you've spent the last few minutes pointing or something just doesn't feel right with the gestures you're using, try this trick. (inc.com)
The efficiency is evaluated at the point where the average collector water temperature is equal to the ambient air temperature — about 5 minute point on this plot. (builditsolar.com)