All of us have experienced the effects of changing weather conditions on the performance of our hot rods. The car feels stronger near the coast on a cold day, yet it gets lazy as the ambient ...

Medically reviewed by Mallory Christopherson DC, FMT, CSCS Increasing your calcium intake, supplementing with vitamin D, and doing resistance training builds bone density.Postmenopausal people and ...

Although density altitude does reduce performance of an aircraft, it doesn't automatically keep you on the ground. [Credit: Shutterstock] A student pilot mistakenly believed any reported density ...

Boats are such a part of our lives that we may not think twice about all the things that make them tick. We're more than happy to enjoy a ride over the water, but that's one of the more puzzling facts ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...