Introduction Have you ever seen video footage of an avalanche or landslide rolling down a hill? Why is it that at one moment everything seems fine then suddenly the mountain begins to slump? This ...

This is the famous Bent Pyramid. The lower part of the pyramid has an angle of 54° and the upper part is at 43°. Why is it bent? Really, who knows. The two likely reasons are: Time or money (well ...

Running uphill on steep inclines is never easy, but researchers at the University of Colorado Boulder have discovered a range of slope angles that would allow an athlete to ascend a mountain most ...

Traditionally, slope-angle readings have been obtained by measurement between identifiable breaks of slope, but this method includes a large subjective element and imposes restrictions on subsequent ...

Now for the physics. I think there are three reasons why a slope would be too steep. For all of these cases, I am going to assume that it is a prolonged slope. This means that you can't just build up ...