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A Chinese drinking bird toy dating back to 1910s~1930s named insatiable birdie is described in Yakov Perelman's Physics for Entertainment. [1] The book explained the "insatiable" mechanism: "Since the headtube's temperature becomes lower than that of the tail reservoir, this causes a drop in the pressure of the saturated vapours in the head ...
Quizlet's primary products include digital flash cards, matching games, practice electronic assessments, and live quizzes. In 2017, 1 in 2 high school students used Quizlet. [ 4 ] As of December 2021, Quizlet has over 500 million user-generated flashcard sets and more than 60 million active users.
A book review is a form of literary criticism in which a book is merely described (summary review) or analyzed based on content, style, and merit. [ 1 ] A book review may be a primary source , an opinion piece, a summary review, or a scholarly view. [ 2 ]
Unless the Angry Birds were sent to a dimension in which mass itself behaves differently, Allain says the physics in Angry Birds Space are blatantly bonkers. Of course, Allain also is smart to ...
Ornithology is a branch of zoology that concerns the study of birds. [1] Several aspects of ornithology differ from related disciplines, due partly to the high visibility and the aesthetic appeal of birds. [2]
The AI Lieserl is abandoned for five million years, leaving her to observe the Sun's interior. She discovers dark matter-based life, which she names "photino birds".These birds gradually drain the energy from the core of a star, ending fusion and causing premature aging into a stable white dwarf—the birds' preferred habitat, as it has no risk of going supernova and destroying them.
The book explores birds as thinkers (contrary to the cliché "bird brain") in the context of observed behavior in the wild and brings to it the scientific findings from lab and field research. [2] New research suggests that some birds, such as those in the family corvidae, can rival primates and even humans in forms of intelligence.
Lesser flamingos flying in formation. When in gliding flight, the upward aerodynamic force is equal to the weight.In gliding flight, no propulsion is used; the energy to counteract the energy loss due to aerodynamic drag is either taken from the potential energy of the bird, resulting in a descending flight, or is replaced by rising air currents ("thermals"), referred to as soaring flight.