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…
Engineering
David Etukudo Disadvantages of Concrete Construction
Concrete construction is everywhere, however, it does come with disadvantages. These disadvantages include low strength, high weight, and high costs. In this article, we review the disadvantages of concrete 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….
Scientific vs Engineering Notation – A Fight to the Death
A fight to the death? A bit dramatic perhaps. 🙂 Engineering and scientific notation are both ways to simplify very large or small numbers so that they are easier to…
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…
Steel Microstructure – Types, Microstructure, and Heat Treatment
Steel microstructure is the fine structure of its constituents that is made visible by magnification over 25 times. It is a function of the carbon content and the transformations that…
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…