Gravimetry through non-linear optomechanics
Sign Up to like & getrecommendations! Published in 2018 at "Nature Communications"
DOI: 10.1038/s41467-018-06037-z
Abstract: Precision gravimetry is key to a number of scientific and industrial applications, including climate change research, space exploration, geological surveys and fundamental investigations into the nature of gravity. A variety of quantum systems, such as atom… read more here.
Keywords: gravitational acceleration; gravimetry non; non linear; gravimetry ... See more keywords
Non-gravitational acceleration in the trajectory of 1I/2017 U1 (‘Oumuamua)
Sign Up to like & getrecommendations! Published in 2018 at "Nature"
DOI: 10.1038/s41586-018-0254-4
Abstract: Abstract‘Oumuamua (1I/2017 U1) is the first known object of interstellar origin to have entered the Solar System on an unbound and hyperbolic trajectory with respect to the Sun1. Various physical observations collected during its visit to… read more here.
Keywords: oumuamua; solar system; gravitational acceleration; acceleration ... See more keywords
Search for variability in Newton’s constant using local gravitational acceleration measurements
Sign Up to like & getrecommendations! Published in 2021 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ac3c8c
Abstract: In a recent work, Dai [1] searched for a variability in Newton’s constant G using the IGETS based gravitational acceleration measurements. However, this analysis, obtained from χ 2 minimization, did not incorporate the errors in… read more here.
Keywords: newton constant; gravitational acceleration; acceleration; acceleration measurements ... See more keywords
A new method of measuring gravitational acceleration in an undergraduate laboratory program
Sign Up to like & getrecommendations! Published in 2018 at "European Journal of Physics"
DOI: 10.1088/1361-6404/aa83d5
Abstract: This paper presents a high accuracy method to measure gravitational acceleration in an undergraduate laboratory program. The experiment is based on water in a cylindrical vessel rotating about its vertical axis at a constant speed.… read more here.
Keywords: laboratory program; gravitational acceleration; acceleration; acceleration undergraduate ... See more keywords
Responses of Bioconvection of Tetrahymena thermophila to Partial Gravity Created by Aircraft Flight
Sign Up to like & getrecommendations! Published in 2019 at "Zoological Science"
DOI: 10.2108/zs180146
Abstract: Bioconvection is a form of collective pattern formation driven by negative gravitaxis of swimming microorganisms. In bioconvection, the interaction between individual swimmers results in self-organization leading to the development of a macroscopic structure typically 100–1000… read more here.
Keywords: gravitational acceleration; tetrahymena thermophila; bioconvection; flight ... See more keywords