In fluid mechanics, the Rayleigh number (Ra) for a fluid is a dimensionless number associated with buoyancy-driven flow, also known as free or natural convection.
Battle of Thapsus is the war between Republican forces of the Optimates, led by Quintus Caecillius Metellus Scipio and the veteran forces loyal to Julius Caesar.
Roche Moutonnee or sheepback is formed by glacial eroding. Different etching levels between layers cause the formation of geographical structures in the form of camel humps.
The interior of the rocks is dissolved by the waters and reaches a loose structure. This rather soft and loose structure is eroded by the winds. As a result, cavities are formed within the rocks. This earth shape that is formed is called Tafone.
The Prandtl number (Pr) or Prandtl group is a dimensionless number named after the German physicist Ludwig Prandtl, defined as the ratio of momentum dissipation to thermal emissivity.
Yardang is a streamlined hill carved from bedrock or any consolidated or semiconsolidated material by the dual action of wind abrasion, dust and sand, and deflation.