Engineering

Surface Finish Symbols

Surface finish symbols characterize the overall texture of a surface. Often, this characterization is in terms of only the surface roughness. But an in-depth description covers other parameters such as…

Most Reactive Metal Group

The most reactive metal group on the periodic table is the alkali metals. In this article, we review why that is true and the use of these metals in laboratory…

Minor Losses in Pipes

Minor losses in pipes stem from a divergence in flow direction, diameter change, and the presence of disturbances. They do not include frictional (major) losses, which are the result of…

Battery Room

A battery room provides a suitable storage location for keeping batteries protected and isolated. These batteries may serve as a backup energy source or part of an uninterrupted power system….

Hz vs dB

Hz and dB, which represent Hertz and decibels respectively, are units that characterize sound waves. Both units are key in fields such as acoustics, quantum mechanics, and wave mechanics. In…

Cracking Moment

The cracking of concrete occurs due to several reasons. These reasons include excessive deflection, plastic shrinkage, severe corrosion of steel rebar, etc. However, the concept of cracking moment deals with…

Chamfer Callout

A chamfer is a slope at the edge of a part and a chamfer callout refers to how to dimension chamfers on drawings. Generally, chamfers serve to remove burs and…