Sentences with phrase «bright hydrogen fusion»
And those gods were an astrological parody for worship of THE SUN... You know that big bright hydrogen fusion machine in the sky that the church once believed orbited the Earth... See the only way to truly be religious and in particular a Christian is to not ask questions.
http://religion.blogs.cnn.com/ Not exact matches
According to Professor Jim Kaler at the University of Illinois» Department of Astronomy, Rana started life as a main sequence F8 dwarf (somewhat hotter and brighter than Sol with slightly greater mass) around 7.5 billion years ago, but core hydrogen fusion has ceased causing the star to expand and cool as an active subgiant before becoming much brighter and larger «as a true giant star» through core helium fusion.
The effect is in the ballpark of 5 %, since the sun is 30 % brighter than when it formed 4.5 billion years ago and the brightening trend accelerates as a star ages (A little educated guessing here, but the rate of fusion increases in proportion to the star's luminosity and the pressure needed in the core is an inverse relationship to the hydrogen concentration in the core — simple linear interpolation would give a 3.3 % increase in luminosity).