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The Cavendish experiment, performed in 1797–1798 by English scientist Henry Cavendish, was the first experiment to measure the force of gravity between masses in the laboratory [1] and the first to yield accurate values for the gravitational constant.
The gravitomagnetic effect in the Cassini radioscience experiment was implicitly postulated by B. Bertotti as having a pure general relativistic origin but its theoretical value has never been tested in the experiment which effectively makes the experimental uncertainty in the measured value of gamma actually larger (by a factor of 10) than 0. ...
Science Buddies also provides resources to support parents and teachers as they guide students seeking out and performing science projects. They attempt to provide a bridge between scientists, engineers, educators, and students, giving students access to current scientific research and simultaneously giving scientists a way to reach out to ...
Gravity Probe A: NASA: Measurement Gravitational time dilation: 1977 De Sitter double star experiment: Kenneth Brecher: Negative result de Sitter effect 1980 Aspect's experiment: Alain Aspect: Confirmation Violation of Bell's inequalities: 1981 UA1 and UA2 experiments: CERN: Discovery W and Z bosons: 1992 DØ experiment: CERN: Multiple Top ...
The Fischbach–Talmadge article was written in 1992, and since then, other evidence has come to light that may indicate a fifth force. [18] The above experiments search for a fifth force that is, like gravity, independent of the composition of an object, so all objects experience the force in proportion to their masses.
[23] [24]: 2-9 It was capable of measuring gravity to 1 part in 10 5. [24]: 2-9 The mass was adjustable through the addition or removal of weights which would allow the experiment to both be tested in Earth gravity to prove out its functionality, and also be operated in lunar gravity without modification to the device.
A science fair or engineering fair is an event hosted by a school that offers students the opportunity to experience the practices of science and engineering for themselves. In the United States, the Next Generation Science Standards makes experiencing the practices of science and engineering one of the three pillars of science education.
In modern geometry, the extra fifth dimension can be understood to be the circle group U(1), as electromagnetism can essentially be formulated as a gauge theory on a fiber bundle, the circle bundle, with gauge group U(1). In Kaluza–Klein theory this group suggests that gauge symmetry is the symmetry of circular compact dimensions.
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