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Karen Wynn is known for her pioneering work on infants' and children's early numerical cognition.The first of her many influential research studies on this topic, published in the scientific journal Nature in 1992, reported that five-month-old human infants are able to compute the outcomes of simple addition and subtraction operations on small sets of physical objects.
John D. Norton, a well-known philosopher of science, has noted that "a good thought experiment is a good argument; a bad thought experiment is a bad argument." [ 3 ] When effectively used, the irrelevant particulars that convert a straightforward argument into a thought experiment can act as "intuition pumps" that stimulate readers' ability to ...
Scientists also use thought experiments when particular physical experiments are impossible to conduct (Carl Gustav Hempel labeled these sorts of experiment "theoretical experiments-in-imagination"), such as Einstein's thought experiment of chasing a light beam, leading to special relativity. This is a unique use of a scientific thought ...
"Behavioral sink" is a term invented by ethologist John B. Calhoun to describe a collapse in behavior that can result from overpopulation.The term and concept derive from a series of over-population experiments Calhoun conducted on Norway rats between 1958 and 1962. [1]
Franz Reichelt (16 October 1878 – 4 February 1912), also known as Frantz Reichelt [1] or François Reichelt, was an Austro-Hungarian-born [2] French tailor, inventor and parachuting pioneer, now sometimes referred to as the Flying Tailor, who is remembered for jumping to his death from the Eiffel Tower while testing a wearable parachute of his own design.
Comparison of the antiquated view and the outcome of the experiment (size of the spheres represent their masses, not their volumes) Between 1589 and 1592, [1] the Italian scientist Galileo Galilei (then professor of mathematics at the University of Pisa) is said to have dropped "unequal weights of the same material" from the Leaning Tower of Pisa to demonstrate that their time of descent was ...
Emoto claimed that water was a "blueprint for our reality" and that emotional "energies" and "vibrations" could change its physical structure. [14] His water crystal experiments consisted of exposing water in glasses to various words, pictures, or music, then freezing it and examining the ice crystals' aesthetic properties with microscopic photography. [9]
In an experiment, 12 tufted (52%) and 14 gray males (54%) copulated with females after courtship. At the end of copulation, females tried to capture and eat the males, but in the same experiment only one tufted and one gray male were killed. A count of offspring showed no differences in numbers of spiderlings from the two morphs.