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810 articles found
Education
The educational environment of the 21st century is changing rapidly, and curriculum design and innovation are essential to keep pace with these changes. To meet the complex and div
Information technology
The metaverse is a concept in which the real and virtual worlds converge through advances in virtual reality technology and the internet. It means creating a virtual world where pe
Logistics
An automated storage and retrieval system (AS/RS) is equipment in which machines, directed by a computer, store goods in assigned locations and retrieve them when needed. This arti
Earth science
Tides, the periodic rise and fall of sea level, are driven mainly by the gravity of the Moon and the Sun. This article covers how tides work, the differences between high and low t
Information technology
A deadlock is a state in which several programs each wait for a resource the other holds, so none of them can move forward. This article covers how deadlocks arise, the four Coffma
Psychology
Cognitive dissonance is the psychological discomfort that arises when contradictory beliefs, attitudes, or behaviors exist at the same time, together with the automatic process of
Robotics
What exactly is an exoskeleton, a robot you wear like clothing to add strength to your body? This article covers its history starting with Hardiman, the sensors and control that re
Statistics
Bootstrapping treats the sample you already have as if it were the population and resamples from it over and over to estimate error and confidence intervals. This article covers ho
Robotics
Teleoperation lets a person control a distant machine directly, sending their hands and eyes where people cannot safely go. This article covers its origins in 1940s–50s nuclear lab
Physics
Black holes are among the most mysterious objects in the universe. This article looks at how they form, from dying massive stars to the first stars after the Big Bang, traces the h
General knowledge
This time, I would like to cover the basics of writing a personal statement that you need when applying to a school, company, or similar institution. A personal statement (self-int
Economics
Comparative advantage is the principle that each party gains by specializing in what it can produce at a lower opportunity cost than others. This article covers the basic concept,
