The difference is that to make water to roll-off a Teflon coated material, you need to tilt the surface to nearly a 70-degree Angle before the water begins to slide off.
The lateral atlantoaxial joint surface is tilted in the sagittal plane or occipito-atlanto-axial joints are asymmetric. Each of the case may result in atlantoaxial dislocation.
The double bass, usually considered a member of the violin family, is tuned in fourths and has the sloping shoulders and flat back characteristic of the viols.
The said incline raise borer, developed by Changsha Institute of Mining Re-search for incline raise boring in dip onebody mining, is the first generation product in Chi-na.
None of this means that what is popular is stagnant, but even dramatic shifts in opinion and political leanings follow a typical pendular pattern, reactively swinging back and forth.