Young sun paradox, Physics

faint, young sun paradox

Theories of stellar evolution denote that as stars mature over the main sequence, they steadily grow hotter & brighter; calculations recommend that at around the time of the creation of Earth, the Sun was roughly two-thirds the brightness that it is currently. But, there is no geological evidence over Earth (or on Mars) for the Sun being fainter in the past. Currently there is no apparent resolution for this paradox.

Posted Date: 3/28/2013 3:01:53 AM | Location : United States







Related Discussions:- Young sun paradox, Assignment Help, Ask Question on Young sun paradox, Get Answer, Expert's Help, Young sun paradox Discussions

Write discussion on Young sun paradox
Your posts are moderated
Related Questions
defect of vision project work 8&10 pages

A physics student performs a double-slit diffraction experiment on an optical bench, as shown in the figure below. The light from a helium-neon laser has a wavelength of 632.8

Assume a new planet was discovered to orbit the Sun with a period 5 times that of Pluto. Using the data, measure the average distance from the Sun for this new planet.

Using principles of special theory of relativity derive mass energy relation, illustrate it with an example. A beam of particle of half life 2.0 x 10-8 sec. travels in a laborat

WORK AND ENERGY   1.  Work can be defined as: the force applied in direction of displacement ×.  This means that if the force F acts at an angle θ with respect to the direct

Draw and discuss volt-ampere characteristics of a tunnel diode. Ans:  Volt-ampere characteristics of a tunnel diode: The V-I characteristics of a tunnel diode are shown in fi

what is magnitisam?how north pole and south pole takes part in it?

If W is atomic weight and N is the atomic number of an element, then: (1) Number of e -1 = W- N (2) Number of 0 n 1 = W- N (3) Number of 1 H 1 = W-N (4) Number of 0

An unknown tuning fork is sounded along w/ a tuning fork whose frequency is 256Hz and a beat frequency of 3 Hz is heard. What i the frequency of the unknown tuning fork?

Method of Making magnet: There are two types of making magnets. Single Touch Method: a. In this method a bar magnet is rubbed on a hard steel bar. b. The magnet is k