Earth Sciences
- April 22 - Trees have a theoretical maximum height of 130m (426 ft) before gravity restricts their growth, according to a study published in Nature.
- September 28 - A long awaited earthquake strikes Parkfield, California, the most closely monitored earthquake zone in the world. The earthquake, which had been expected to have occurred by the late 1980s, strikes as a magnitude 6.0. The network of instruments that had been installed in the region make this the most well-recorded earthquake in history.
- December 26 - Indian Ocean earthquake and tsunami.
Read more about this topic: 2004 In Science
Famous quotes containing the words earth and/or sciences:
“It was a favor for which to be forever silent to be shown this vision. The earth beneath had become such a flitting thing of lights and shadows as the clouds had been before. It was not merely veiled to me, but it had passed away like the phantom of a shadow, skias onar, and this new platform was gained. As I had climbed above storm and cloud, so by successive days’ journeys I might reach the region of eternal day, beyond the tapering shadow of the earth.”
—Henry David Thoreau (1817–1862)
“These modern ingenious sciences and arts do not affect me as those more venerable arts of hunting and fishing, and even of husbandry in its primitive and simple form; as ancient and honorable trades as the sun and moon and winds pursue, coeval with the faculties of man, and invented when these were invented. We do not know their John Gutenberg, or Richard Arkwright, though the poets would fain make them to have been gradually learned and taught.”
—Henry David Thoreau (1817–1862)