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Thomson's experiments with cathode rays (1897): J. J. Thomson's cathode ray tube experiments (discovers the electron and its negative charge). Eötvös experiment (1909): Loránd Eötvös publishes the result of the second series of experiments, clearly demonstrating that inertial and gravitational mass are one and the same.
In contrast to laboratory experiments, mesocosm studies are normally conducted outdoors in order to incorporate natural variation (e.g., diel cycles). Mesocosm studies may be conducted in either an enclosure that is small enough that key variables can be brought under control or by field-collecting key components of the natural environment for ...
A simplification of an allopatric speciation experiment where two lines of fruit flies are raised on maltose and starch media. Laboratory experiments of speciation have been conducted for all four modes of speciation: allopatric, peripatric, parapatric, and sympatric; and various other processes involving speciation: hybridization, reinforcement, founder effects, among others.
Experiment that has two or more groups of subjects each being tested by a different testing factor simultaneously Student's t-test , Analysis of variance , Mann–Whitney U test Repeated measures design
Preparation of a biohacking kit for a biology workshop in Popular Education in a café in Rennes in 2020. Do-it-yourself biology (DIY biology, DIY bio) is a biotechnological social movement in which individuals, communities, and small organizations study biology and life science using the same methods as traditional research institutions.
Mouse from the Garland selection experiment with attached running wheel and its rotation counter. In 1993, Theodore Garland, Jr. and colleagues started a long-term experiment that involves selective breeding of mice for high voluntary activity levels on running wheels. [44] This experiment also continues to this day (> 105 generations). Mice ...
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The building that houses University Laboratory High School was built from 1917 through 1918 and was designed by Holabird & Roche in the Late Gothic Revival style, with James M. White as the supervising architect. An earlier design for an H-shaped structure with two wings had been rejected in 1914, and it was not until May 1916 that the go-ahead ...