Use the Law of Rotation Extreme Value to Prove That the Moon Does Not Rotate | Chapter 04 | Innovations in Science and Technology Vol. 2

 Since the International Year of Physics in 2005, I've been constantly thinking about Newtonian mechanics problems, tracing their roots, and proposing the concept of dissipative work, revising the kinetic energy theorem, supplementing the angular kinetic energy theorem, and inferring the law of conservation of angular kinetic energy and the angle. The conservation of angular kinetic energy governs the motion of celestial bodies, according to the law of non-conservation of kinetic energy, which explains the problem of celestial body rotation in the solar system. The old issue has been resolved, and a new issue has arisen. We must ask questions because the new hypothesis fails to explain the problem of the moon's synchronous rotation. What is the universe's standard for objects that do not rotate? How do you begin the rotation if there is no standard? Following the research, not only is the preliminary standard for the object's non-rotation given, but also the method for judging whether the object rotates using the "copy" method, as well as the law of the extreme value of rotation, which can theoretically prove whether the moon has a rotation problem is discovered.

Author(S) Details

Chen Jun
Shahe Middle School, Chuzhou, 239060, China.

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Determining the Cosmological Constant Using Gravitational Wave Observations: Recent Advancements | Chapter 3 | New Insights into Physical Science Vol. 2

It is shown in Einstein gravity that the cosmological constant Λ introduces a graviton mass mg into the theory, a result that will be derived from the Regge-Wheeler-Zerilli problem for a particle falling onto a Kottler-Schwarzschild mass with Λ≠ 0. The value of mg is precisely the Spin-2 gauge line appearing on the Λ-mg2 phase diagram for Spin-2, the partially massless gauge lines introduced by Deser & Waldron in the (mg2, Λ) phase plane and described as the Higuchi boundmg2= 2Λ/3. Note that this graviton is unitary with only four polarization degrees of freedom (helicities ±2, ±1, but not 0 because a scalar gauge symmetry removes it). The conclusion is drawn that Einstein gravity (EG, Λ≠ 0) is a partially massless gravitation theory which has lost its helicity 0 due to a scalar gauge symmetry. That poses a challenge for gravitational wave antennas as to whether they can measure the loss of this gauge symmetry. Also, given the recent results measuring the Hubble constant Ho from LIGO-Virgo data, it is then shown that Λ can be determined from the LIGO results for the graviton mass mg and Ho. This is yet another multi-messenger source for determining the three parameters Λ, mg, and Ho in astrophysics and cosmology, at a time when there is much disparity in measurements of Ho.

Author(s) Details

 Thomas L. Wilson NASA,
Johnson Space Center, Houston, TX, USA.

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