As I drove into work today, I heard a story on NPR discussing revisions to dating of the Grand Canyon. Apparently, some kind of helium dating technique when applied to soil samples from the canyon produces dates of about 70 million years, whereas the canyon has previously been thought to be only a few million years old.
I don't know anything at all about this topic, but I'd appreciate being filled in by people who do. Pointers to some reading material would also be helpful.
Under a government which imprisons any unjustly, the true place for a just man is also in prison. Thoreau: Civil Disobedience (1846)
The apathy of the people is enough to make every statue leap from its pedestal and hasten the resurrection of the dead. William Lloyd Garrison.
If there is no struggle, there is no progress. Those who profess to favor freedom, and deprecate agitation, are men who want crops without plowing up the ground, they want rain without thunder and lightning. Frederick Douglass