Search results
Results from the WOW.Com Content Network
The faint young Sun paradox or faint young Sun problem describes the apparent contradiction between observations of liquid water early in Earth's history and the astrophysical expectation that the Sun 's output would be only 70 percent as intense during that epoch as it is during the modern epoch. [ 1 ] The paradox is this: with the young Sun's ...
The solar neutrino problem concerned a large discrepancy between the flux of solar neutrinos as predicted from the Sun 's luminosity and as measured directly. The discrepancy was first observed in the mid-1960s and was resolved around 2002. The flux of neutrinos at Earth is several tens of billions per square centimetre per second, mostly from ...
Sunrise problem. Usually inferred from repeated observations: "The sun always rises in the east". The sunrise problem can be expressed as follows: "What is the probability that the sun will rise tomorrow?" The sunrise problem illustrates the difficulty of using probability theory when evaluating the plausibility of statements or beliefs.
The image shows light with a wavelength of 304 angstroms. Solar phenomena are natural phenomena which occur within the atmosphere of the Sun. They take many forms, including solar wind, radio wave flux, solar flares, coronal mass ejections, [1] coronal heating and sunspots. These phenomena are believed to be generated by a helical dynamo ...
The nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System (as well as other planetary systems). It suggests the Solar System is formed from gas and dust orbiting the Sun which clumped up together to form the planets. The theory was developed by Immanuel Kant and ...
Conservatism portal. United Kingdom portal. v. t. e. The Sun is a British tabloid newspaper, published by the News Group Newspapers division of News UK, itself a wholly owned subsidiary of Lachlan Murdoch 's News Corp. [9][10] It was founded as a broadsheet in 1964 as a successor to the Daily Herald, and became a tabloid in 1969 after it was ...
The Sun (located at the focus) is labeled S and the planet P. The auxiliary circle is an aid to calculation. Line xd is perpendicular to the base and through the planet P. The shaded sectors are arranged to have equal areas by positioning of point y. The Keplerian problem assumes an elliptical orbit and the four points: s the Sun (at one focus ...
Angular momentum problem. The angular momentum problem is a problem in astrophysics identified by Leon Mestel in 1965. [ 1 ] It was found that the angular momentum of a protoplanetary disk is misappropriated when compared to models during stellar birth. The Sun and other stars are predicted by models to be rotating considerably faster than they ...