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810 articles found
Library & information science
The Mundaneum was a vast index-card archive founded in Brussels by Belgian lawyers Paul Otlet and Henri La Fontaine to gather the world’s knowledge in one place. This article cover
Statistics
What the null and alternative hypotheses are, how to set them up for hypothesis testing, how significance level and statistical power shape the results, and three worked examples f
Earth science
Air pressure shapes our weather and is something we feel in everyday life. This article covers the basic concept of air pressure, the role and importance of atmospheric pressure, t
General knowledge
With advances in modern agricultural technology and the widespread use of protected cultivation (greenhouse growing), we live in an era when lettuce, cucumbers, and tomatoes are av
Journalism & communication
The media plays a central role in modern society and is closely connected to our daily lives. For this reason, the media must uphold high ethical standards when communicating infor
Statistics
An easy introduction to non-probability sampling in statistics, which selects samples based on the researcher's judgment or convenience, covering convenience, judgment (purposive),
Tourism studies
As an important link between a society's past and present, cultural heritage plays an essential role in understanding human history and culture. Cultural heritage not only has inhe
Information technology
A Heisenbug is a software bug that disappears or changes its behavior when you try to investigate it. This article covers where the name came from, why such bugs hide, related bug
Journalism & communication
With the digital revolution, the way information circulates is changing faster than ever, and social media lies at the center of these changes. Today, social media has a profound i
Robotics
A collaborative robot, or cobot, is a robot designed to share a workspace with people and to reduce its own force and speed when it comes close or makes contact, so no one gets hur
General knowledge
Fermi estimation breaks an unknown quantity into numbers you already know, roughly estimates each piece, and multiplies them to get the order of magnitude. This article covers the
Information technology
Cloud computing is a concept that has become an essential technology in the modern IT industry. It allows businesses and individuals to easily access various computing resources ov
