Radioactive dating of meteorites
Before 1955, ages for the Earth based on uranium/thorium/lead ratios were generally about a billion years younger than the currently popular 4.5 billion years. old Earth is reviewed and deficiencies of the uranium/lead method are discussed.
The basic theory of radiometric dating is briefly reviewed.
magazine has been continuously published since 1978, we are publishing some of the articles from the archives for historical interest, such as this.
For teaching and sharing purposes, readers are advised to supplement these historic articles with more up-to-date ones suggested in the Related Articles and Further Reading below.
Most systems promoted by Evolutionists involve radioactivity.
He is presently employed in the Space & Atmospheric Sciences Group at the Los Alamos National Laboratory.Despite this, the momentum gained in the two decades prior to 1972 has made 4.5 b.y.a popularly accepted “universal constant” even though the foundations on which it was based have been virtually removed.We already went over the stuff that would be in the meteoroid category, we'll go to the next one - meteors. This is actually a picture from the 1998 Leonid meteor shower, which makes sense, because that's where it appears the meteors are coming from. It surprises many people that are not due to asteroids but are instead caused by comets. Some of the constellations are labeled in this view, which shows many stars (smallish streaks) which all appear to be moving in a uniform direction, while the meteors (longer streaks) appear to be radiating from the constellation of Leo (if you were to trace their motion back).