Musings of a Political Scientist

All posts in Geophysics

Earth Magnetic Field and Earth Magnetosphere by Bryan Brandenburg
Earth is surrounded by a magnetosphere, a region around an astronomical object in which phenomena are dominated or organized by its magnetic field and distorted by the solar wind. Read more

Uranium Lead Dating the Earth
Uranium-lead dating computes the age of the earth at 4.54 billion years old with less than 1% margin of error. It is one of the oldest and most refined radiometric dating schemes, with a routine age range of about 1 million years to over 4.5 billion years. Read more

The Sun by Bryan Brandenburg
The Sun is the star at the center of the Solar System. The Earth and other matter orbit the Sun, which by itself accounts for more than 99% of the solar system's mass. Read more