Stories tagged wisconsin

Happy birthday to you! Happy birthday to you! Happy birthday dear, Earth Day. Happy birthday to you!
Stop it!: You are making Earth blush.
Stop it!: You are making Earth blush.Courtesy NASA

Today Earth Day turns 41 years young. Earth day was born in Wisconsin to loving "father" Senator Gaylord Nelson on Wednesday, April 22, 1970. Twenty million Americans left school and work to welcome Earth Day into the world and to protest the country's lack of environmental policy.

As a result, in December of 1970, the Environmental Protection Agency (EPA) was established, and the 70s and 80s saw the birth of dozens of important environmental policies like the Clear Air and Water Acts.

If you want to learn more about Earth Day, check out the EPA's Earth Day page or this manuscript by Gaylord Nelson himself.

Apr
17
2010

Meteorite: I traded out this meteorite at the Science Museum of Minnesota Collectors Corner. That is one inch on the ruler.
Meteorite: I traded out this meteorite at the Science Museum of Minnesota Collectors Corner. That is one inch on the ruler.Courtesy ARTiFactor
The fireball of a meteor blazing across the sky last Wednesday night was so spectacular that when my wife saw it, she pulled off the road. She was driving west on Ramsey Blvd. approaching highway 10 and said "it was the same as the green in the traffic light."

Meteor lands in Wisconsin

Our Buzz blogger, "mdr", wrote about this event, Light show over Iowa.

When the meteor exploded, it unleashed as much energy as the detonation of 20 tons of TNT, NASA scientists said. Their analysis found that the parent meteor was about 3.3 feet (1 meter) wide before it blew apart. Space.com

If you want to look for pieces of this meteorite, don't go to Iowa, join the rush around the Livingston area in Wisconsin, between Platteville and Avoca.

Similar meteors fall every day

Most meteors burn up before reaching Earth, though. This one did not break up till it was close to the surface. We know this because found fragments are burnt on one edge only. The meteorite is described as an "H type" stony meteorite, a fairly common variety. The stereotypic iron meteorite is more rare.

Telling a meteorite from a meteor wrong

The University of Wisconsin at Madison Geology Museum has a useful webpage helping visitors determine a meteorite from a meteor-wrong (click on link to learn how).

Learn more about meteorites

You can see photos of meteorite fragments here and here (U of Wisconsin analysis of meteorite).
Photos of more Wisconsin meteorite fragments and info are to be found in a blog by Astro Bob.

UW-Madison meteorite experts Noriko Kita and Takayuki Ushikubo used a scanning electron microscope and X-ray spectrometer to begin to analyze the surface mineral composition of the rock. They identified the presence of magnesium, iron, and silica-containing compounds, including the common minerals olivine and pyroxene. They also found iron-nickel metal and iron sulfide, which are often seen in primitive meteorites.

Trade for meteorites @ Collector's Corner

We now have over 30 meteorites for trade at Collector's Corner at the Science Museum of Minnesota. Come get one before they are all gone.

On the loose: There is a mountain lion similar to this roaming around in Wisconsin. Don't let your dog chase it up a tree.
On the loose: There is a mountain lion similar to this roaming around in Wisconsin. Don't let your dog chase it up a tree.Courtesy Cm0rris0n
Here's a strange tale of four hunters who used their dogs to track down a mountain lion near Spooner, Wisc., this week and then worked to prevent the Wisconsin DNR from collaring the animal to keep track of its movements. Those crazy Cheeseheads.

Tornado trail seen from space: Tens of thousands of trees were leveled June 7, 2007 in Wisconsin.
Tornado trail seen from space: Tens of thousands of trees were leveled June 7, 2007 in Wisconsin.

A tornado left this scar in a forested region of Wisconsin on June 7, 2007. Click on the picture to get a little larger view or here is a link to the original NASA photo.

May
12
2006


Grass Carp: Grass Carp (White Amur) - Ctenopharyngodon idella Courtesy USGS

Grass carp, which sound like the kind of fish you would find in Cheech and Chong’s aquarium, have been turning up in the rivers around Minnesota. And authorities aren’t excited by the possibilities of this invasive species making a home in northern waters.

In early April, a commercial fisherman caught a 45- to 50-pound grass carp in the St. Croix River near Prescott, Wisc. While it was a thrilling fish to pull in for the angler, it does raise concerns about the changing dynamics of the fish population in the Mississippi River and its tributaries.

The grass carp is one of three reported catches in the Minnesota/Wisconsin river in the past two years. The others came in the past two falls, with one being caught in Lake Pepin on the Mississippi River and the other caught further downstream near the southern Minnesota border. While the Minnesota Department of Natural Resources is concerned about these intruders, it hasn’t found any evidence that they’re breeding yet in northern waters which would accelerate their numbers.

Apr
21
2006

On April 6, officials from Minnesota and Wisconsin signed an agreement designed to reduce levels of phosphorus in the St. Croix River by 20% by the year 2020.

For more information about phosphorus in the St. Croix visit the Buzz kiosk in the Mississippi River Gallery on level 5, or check out our on-line feature.