Put your email address in the box below and "submit" to be notified when a new post is added.
Wednesday, July 22, 2015
Very Cool Weather Video!
Tuesday, May 27, 2014
Astronomy Interactives/Animations from U. of Nebraska
Also, here's another fun site that shows the current location of the planets. CLICK HERE to take a look. You can change the settings in the windows beneath the image. The site is developed and maintained by Chris Peat of Heavens-Above.
NOTE: This will be the last post for awhile. School is winding down and my days will soon be spent hiking, kayaking, etc. Have a great summer!
To view a convenient list of all the resources that have been posted on this "Earth Science Guy" blog site, CLICK HERE.
Sunday, May 18, 2014
Watch the New Meteor Shower Friday Night (May 23)
Friday, May 16, 2014
Go "Retro" - Retrograde Animation
Retrograde motion is a tough one to explain to students without some sort of visual aid. This animation by the University of Nebraska is a very helpful tool. CLICK HERE to watch it.
To learn more about retrograde motion, including the Ptolemaic model and the Copernican model, CLICK HERE (courtesy of LaSalle University).
Thursday, May 1, 2014
Glaciers of the American West
1. Timeline of recent Ice Ages (use the green arrows at the top and bottom to interact).
2. Virtual Glacier (select green links to interact)
3. Glacier Re-photography of the American West (select one of the red boxes and then red dots to view the collection)
Photo: Grinnell Glacier from Mt. Gould in Glacier National Park - Courtesy of the USGS
Speaking of glaciers . . .
Contrary to popular belief, the glaciers in Glacier National Park are NOT remnants of the last ice age that ended roughly 10,000 years ago. There is little doubt that ice age glaciers WERE responsible for carving the majestic peaks and valleys of the park (horns, cirques, aretes, hanging valleys, etc.), but experts believe those glaciers completely melted away during an especially warm period 9,000 to 5,000 years ago (Holocene Climate Maximum). On the other hand, glaciers present in the park today formed during a more recent cold period called "The Little Ice Age" (not a true "ice age") - a cold period that lasted from 1550 to 1850. According to evidence from moraines, tree rings, layers of volcanic ash (Mazama, etc.), and radiometric dating, these "Little Ice Age glaciers" formed in cirques that had been carved by glaciers during the last REAL ice age(s). To learn more about this AND to find out about the glacier that has formed in the crater of Mt. St. Helens, CLICK HERE.
Interested in a summer workshop in Glacier Park? Check out these offerings from the Glacier Institute I plan to take the course titled "Geology of Glacier: A Walk Through Earth's History".
Friday, April 25, 2014
U.S. Daily Temperature Anomalies 1964-2013 by Enigma
Sunday, April 20, 2014
Glacier Movement Animations and Interactives
Here's another resource related to valley (alpine) glaciers created by the PhET (?) project. The PhET™ project at the University of Colorado provides interactive, research-based simulations of physical phenomena for free. Check out this Glacier Simulation (select "run now") and then browse through their other Earth Science-related simulations
To view a convenient list of all the resources that have been posted on this "Earth Science Guy" blog site, CLICK HERE.
Below: Speaking of glacial movement, this 48-second segment from NOVA shows 5 months of ice-flow from BENEATH Mt. Blanc in the Alps.