With hemispheric end caps, the radius of the tank head equals the radius of the cylindrical part of the pressure vessel. Ellipsoidal tank heads are also available. They are sometimes called 2:1 ...

Heather Milton, a senior exercise physiologist at NYU Langone Health, says too many people don't work hard enough on the elliptical trainer. So this is what she does instead. Following is a ...

The head thickness tables may be applied to ellipsoidal 2:1 heads or torispherical heads. They may be applied to seamless heads (joint efficiency = 1.0), double-welded butt heads that have been fully ...

Have you ever walked by an elliptical at the gym and wondered, "Could that contraption be a useful part of my workout routine ...