History of the Cheesehead

Packer fans across the country are scrambling to get their foam cheeseheads before Green Bay and Pittsburgh square off in Sunday’s Super Bowl. Ralph Bruno made the first cheese wedge hat 25 years ago by burning holes in his mother’s sofa cushion.

Click here to listen to the history of the Cheesehead on NPR:   http://www.npr.org/2011/02/02/133424492/Cheese-Head-Hat

Supervolcano

Supervolcanos produce eruptions with ejecta greater than 1,000 cubic kilometers (240 cubic miles) – thousands of times larger than most historic volcanic eruptions.  Supervolcanoes occur when magma rises into the crust from a hotspot but is unable to break through that crust until pressure builds to a phenomenally high level.  Yellowstone National Park is a supervolcano that last erupted 640,000 years ago. 

http://dsc.discovery.com/convergence/supervolcano/supervolcano.html

Some scientists are worried that we’re overdue for another eruption.  The floor of the Yellowstone supervolcano has risen 3 inches a year for the past 3 years, the fastest rate since records began in 1923. 

http://www.earthmountainview.com/yellowstone/yellowstone.htm

http://news.nationalgeographic.com/news/2011/01/110119-yellowstone-park-supervolcano-eruption-magma-science/

Here’s what National Geographic predicts will happen when Yellowstone explodes:

http://ngm.nationalgeographic.com/2009/08/yellowstone/achenbach-text