The earth seems to be fairly solid as we stand on its surface. We stand on solid ground and do not sink through the floors in our homes. However, underneath that solid-looking crust are layers […]
The field of nanofluidics is the study of the behavior, control and manipulation of fluids that are confined in extremely small structures. The dimensions of these minute structures typically range from 1 nanometer to 100 […]
Nature continues to shed light on the amazing and wide range of mechanisms employed in the world of plants and animals. Nanoscale (1 x 10 -7 or 3.937 x 10-8 inches) textured surfaces help insects […]
Energy harvesting (also sometimes called scavenging) is a process of energy derivation from the ambient sources, e.g., sunlight, wind, heat, mechanical vibrations, etc. The main idea is that devices can collect the energy present in […]
Origin of sliding friction: role of lattice trapping The friction force acting on a block sliding on a substrate is usually nearly velocity independent unless the sliding speed is so low that thermal activation is […]
2D materials deserved an interest in material science and other disciplines due to their exciting electronic, mechanical, and optical properties. The unique behavior of these materials originate from very strong in-plane atoms interactions and very […]
Hardness is a material’s resistance to plastic deformation and this property is widely used to rank materials for various engineering applications. Hard materials can be used for cutting, drilling. Hardness frequently correlates with wear resistance […]
Most of the natural or engineered surfaces are not perfect, meaning they are rough. The surface roughness was found across many scales: from atomic to tectonic. The earth looks smooth from space, but someone standing […]
The famous picture of transportation of an Egyptian statue to the grave of Tehuti-Hetep, El-Bersheh indicates that the concept of lubrication was already known to ancient Egyptians. The picture below shows how the slaves are […]
Recent research (https://doi.org/10.1007/s40544-017-0183-5) has shown that about 23% of the world’s total energy consumption comes from the tribological contacts (moving parts subject to friction and wear, such as bearings, gears, etc.). This energy is lost, […]
