
ANSI Z535.2-2011 (R2017): Facility/Environment Safety Signs
Although the safety sign classification system we are familiar with today began in the early 1900s with the emergence of automobiles, these were not the […]
Although the safety sign classification system we are familiar with today began in the early 1900s with the emergence of automobiles, these were not the […]
Micro (from the Greek word mikros) means “small,” and phone (from the Greek word phone) means “sound” or “voice.” This translates microphone to “small sound,” […]
In environmental acoustics, the ground effect is described by its acoustic impedance. By analogy with the electrical or mechanical impedance, the ground impedance effect accounts for […]
The main purpose of every machine tool is to process materials. Inadvertent interference with, or accidental misdirection of the released energy during production, maintenance, commissioning […]
Flint knives, saws, and drills were used for surgery, amputation, and trepanation during the Upper Paleolithic and Mesolithic times in 6000 BCE. These were the […]
The steps that involve manufacturing, regulation, planning, assessment, acquisition, and management of medical devices are complex but essential to guarantee their quality, safety, and compatibility […]
Gas turbines are used to power aircrafts, trains, ships, electrical generators, pumps, gas compressors, and tanks. Since their initial use for generating electricity in 1939, gas […]
According to the National Institute of Health (NIH), approximately 15% of American adults (37.5 million) aged 18 and over report some trouble hearing, about one […]
What did Thomas Edison design in 1879 that is still widely used around the world over one century later? The answer is the incandescent light […]
1 in 3 people around the world do not have access to safely managed drinking water, free from contamination and available when needed. One way […]