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An operant conditioning chamber (also known as a "Skinner box") is a laboratory apparatus used in the experimental analysis of animal behavior. It was invented by Skinner while he was a graduate student at Harvard University. As used by Skinner, the box had a lever (for rats), or a disk in one wall (for pigeons).
Building the design, the first known functional reflecting telescope, today known as a Newtonian telescope, involved solving the problem of a suitable mirror material and shaping technique. [82] Newton ground his own mirrors out of a custom composition of highly reflective speculum metal , using Newton's rings to judge the quality of the optics ...
Also in 2016, Quizlet launched "Quizlet Live", a real-time online matching game where teams compete to answer all 12 questions correctly without an incorrect answer along the way. [15] In 2017, Quizlet created a premium offering called "Quizlet Go" (later renamed "Quizlet Plus"), with additional features available for paid subscribers.
Clever Hans performing in 1904. Clever Hans (German: der Kluge Hans; c. 1895 – c. 1916) was a horse that appeared to perform arithmetic and other intellectual tasks.. In 1907, psychologist Oskar Pfungst demonstrated that the horse was not actually performing these mental tasks, but was watching the reactions of his trai
Unlike a profile or curriculum vitae , a biography presents a subject's life story, highlighting various aspects of their life, including intimate details of experience, and may include an analysis of the subject's personality. Biographical works are usually non-fiction, but fiction can also be used to portray a person's life. One in-depth form ...
Although animals do not have the same linguistic competencies as humans, it is assumed that they can provide evidence for some linguistic competence. The relatively new science of evo-devo that suggests everyone is a common descendant from a single tree has opened pathways into gene and biochemical study.
Simplified schematic of an island's fauna – all its animal species, highlighted in boxes. Fauna (pl.: faunae or faunas) is all of the animal life present in a particular region or time. The corresponding terms for plants and fungi are flora and funga, respectively. Flora, fauna, funga and other forms of life are collectively referred to as biota.
He documented his life, philosophy, and ideas scrupulously by a daily diary (later called the Dymaxion Chronofile), and by twenty-eight publications. Fuller financed some of his experiments with inherited funds, sometimes augmented by funds invested by his collaborators, one example being the Dymaxion car project.