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NAT GEO presents The Wild Mississippi, a three-part TV program on Sunday, February 12. I viewed the three episodes today, and recommend that you tune in Sunday night at 8:00 P.M (Eastern) to view the first of the three episodes. The second and third episodes follow at 9:00 P.M. and 10:00 P.M. Check the schedule and details here.
Join the Wild Mississippi Blog Carnival here.… Read more
In the last post I reviewed the article “Tracking the Footprints Puzzle: The Problematic persistence of science-as-process in teaching the nature and culture of science by Charles Ault and Jeff Dodick which was published in the recent issue of the journal Science Education. I also reflected on my own experience in teaching and writing with the Footprints Puzzle. In this post, I am going to explore this idea: The Dinosaur Footprints Puzzle: Is it pedagogy or paleontology?… Read more
NASA scientists, of Project LCROSS, have reported that there is water in one of the moon’s craters, and that there is more water in this crater than there is in the Sahara Desert. The water, in the form of ice crystals, makes up about 5 – 8% of the crater’s mixture. According to NASA, 8 wheelbarrows of soil could yield 10 to 13 gallons of water.… Read more
This weekend is the fifth anniversary of Hurricane Katrina, which devastated New Orleans, and much of the Gulf Coast region. Perhaps the best way to start this post is to watch this video which I embeded from the nola.com Hurricane Katrina page. The video is a sunrise service (February 9, 2007) amongst residents of New Orleans, and was uploaded to the nola site by Michael DeMocker, The Times-Picayune.… Read more
The latest word on effort to plug the BP offshore oil well using the “Top Kill” procedure is that the effort is continuing, but the company has not determined whether it is working, or that it won’t work. According to a report in the New York Times, BP will continue with the procedure. The report suggested that BP used a “Junk Shot” last night which “involves pumping odds and ends like plastic cubes, knotted rope, and golf balls into the blowout preventer, the five-story safety device atop the well.” The “Top Kill” procedure continues at this time, and will continue until the spill is plugged following which cement will be used to seal it, or the procedure will be stopped, and BP will move on to its next procedure, which is in place.… Read more
As I write this post, BP has begun their “top kill” maneuver to stop the flow of oil by plugging the well with mud. This technique has not been used at such great depths, and we’ll have to wait perhaps for a couple of days to find out the result of this approach to stopping this debacle.
As I’ve read the wrenching stories, and seen the awful scenes of oil in the water, and oil reaching the beaches and marshes, I’ve also wondered about previous oil spills, and what precedence there is for this calamity.… Read more
There is enormous frustration setting in as the BP Gulf oil spill continues into its second month devastating vast areas of the American gulf coast. To this date, we do not know how much oil is spilling into the waters of the Gulf of Mexico. The original estimate (established by BP) was 5,000 barrels per day. Keep in mind that there are 42 gallons in a barrel, so this initial estimate means that 210,000 gallons of oil were spilling into the ocean.… Read more
The Art of Teaching Science is the personal blog of Jack Hassard. I am a writer, a former high school science teacher and Professor Emeritus of Science Education, Georgia State University. The blog reflects my opinions on science education and issues related to educational reform from a progressive science and education philosophy.
