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808 articles found
Robotics
Inverse kinematics finds the joint angles that place a robot’s end effector at a desired pose. This piece covers forward versus inverse kinematics, multiple or missing solutions an
Earth science
Snowball Earth is the hypothesis that Earth’s surface was once almost entirely covered in ice during the Cryogenian Period. This article explains how the idea arose, the ice-albedo
General knowledge
Why do things that have already lasted a long time tend to last even longer? This article explains where the name Lindy Effect came from, what kinds of things it applies to, how to
Education
In modern society, educating children is one of parents' greatest concerns. Although school education plays an important role, education at home is essential for children's holisti
Food & nutrition
Rancidity is the process in which the fats in food break down by reacting with oxygen, water, or enzymes, producing unpleasant smells and flavors and lowering quality. We look at i
Chemistry
Chemical synthesis is the process of creating new compounds by combining atoms and molecules, and it is an essential technology in modern science and industry. This technology play
Information technology
Gall's Law says that a complex system that works has always evolved from a simple system that worked. We look at where it came from, what its three sentences mean, real examples, a
Robotics
Why can computers beat chess champions yet struggle to pick up a cup? This article covers the origins of Moravec's paradox, its evolutionary explanation, examples from robotics, an
Economics
Money illusion is the mistake of judging gains and losses by the face value of money rather than its real purchasing power. This article covers nominal versus real value, the famou
Physics
Multiverse theory is one of the most prominent and controversial concepts in modern physics, proposing the possibility that countless other universes exist beyond the universe we i
Journalism & communication
Four Theories of the Press (1956) sorted the world's press into authoritarian, libertarian, social responsibility, and Soviet communist theories. This article covers what each beli
Earth science
Gravity is an essential part of our everyday lives and one of the fundamental forces of the universe. Through gravity, we pull objects toward the ground, and it affects everything
