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Visual binary. A visual binary is a gravitationally bound binary star system [1] that can be resolved into two stars. These stars are estimated, via Kepler 's third law, to have periods ranging from a few years to thousands of years. A visual binary consists of two stars, usually of a different brightness. Because of this, the brighter star is ...
In mathematics, a negative number represents an opposite. [1] In the real number system, a negative number is a number that is less than zero. Negative numbers are often used to represent the magnitude of a loss or deficiency. A debt that is owed may be thought of as a negative asset.
hide. Topography (top) and corresponding gravity (bottom) signal of Mare Smythii on the Moon containing a significant mascon. In astronomy, astrophysics and geophysics, a mass concentration (or mascon) is a region of a planet's or moon's crust that contains a large positive gravity anomaly. In general, the word "mascon" can be used as a noun to ...
Over the past century, scientists have only observed five magnitude-9.0 or higher earthquakes — all megathrust temblors like the one predicted for the Cascadia Subduction Zone.
The total electric charge of the neutron is 0 e. This zero value has been tested experimentally, and the present experimental limit for the charge of the neutron is −2(8) × 10 −22 e, or −3(13) × 10 −41 C. This value is consistent with zero, given the experimental uncertainties (indicated in parentheses).
A 164-page treatise on this AGI is nigh and superintelligence-ain’t-far-behind argument was published last month by Leopold Aschenbrenner, entitled “Situational Awareness.”. Aschenbrenner is ...
Erich Anderson, best known for playing Felicity’s dad on the drama of the same name, died over the weekend after a battle with cancer. He was 67. Anderson’s wife, actress Saxon Trainor ...
Electric charge is a conserved property: the net charge of an isolated system, the quantity of positive charge minus the amount of negative charge, cannot change. Electric charge is carried by subatomic particles. In ordinary matter, negative charge is carried by electrons, and positive charge is carried by the protons in the nuclei of atoms.