Nutria

Nutria (Myocastor Coypus) is a large aquatic rodent that is one of those grand economic experiments gone wrong. They were imported to the US back in the 1930s to be raised for fur. When fur prices dropped, the farmers usually just released them to the wild, where they flourished. They are known to be destroyers of the marsh with their ravenous appetites for herbaceous material. The late Sheriff Harry Lee declared war on nutria whose burrows were undermining the drainage canal banks in his parish. The SWAT team sharpshooters were sent out with .22 rifles to shoot the little buggers. The shooters found that nutria were wily and difficult targets. They quickly learned that any noise could be a death dealing deputy and ran for their burrows.

The best solution is to introduce the orange toothed critters to the human food chain but their unappealing appearance and classification as a rodent is off putting to many people. However, a Cajun will eat just about anything. If you get the urge to try nutria, here’s a heart healthy recipe for them.

Heart-Healthy Crockpot Nutria

2 hind saddle portions of nutria meat

1 small onion, sliced thin

1 tomato, cut into big wedges

2 potatoes, sliced thin

2 carrots, sliced thin

8 Brussels sprouts

½ cup white wine

1 cup water

2 tsp chopped garlic

Salt and pepper to taste

1 cup demi-glace (optional)

Layer onion, tomato, potatoes, carrots and Brussels sprouts in crockpot. Season nutria with salt, pepper and garlic, and place nutria over vegetables. Add wine and water, set crockpot on low and let cook until meat is tender, about 6 hours. Garnish with vegetables and demi-glace. Serves 4.

Ohhhh, The Irony!!!!

Shamelessly stolen from Mostly Cajun.

On Her Majesty's Table

As I travelled around the world, there was one condiment that seemed to be universal - Tabasco. I could be in a grass roofed lunch shack in Brazil and find a bottle of the fiery liquid on the table. Cajuns had probably introduced it to the world as they travelled in the oil industry and it was everywhere from the deserts of Arabia to the Amazon jungles.

We learned this weekend that Tabasco has been approved for a Royal Warrant of Appointment as a supplier of goods to the Queen of England.

I like Tabasco, and am not afraid to use it, but when I travel, my favorite condiment to carry with me is Crystal.

Coyote Tales

Last November, on election day, I wrote about a coyote running across the road in front of my car on my way to work. Well, he still must be out there because yesterday one showed up at the Grandson's school. He is now in a residential area and there is a good chance that some little kid will get hurt when they try to pet the "nice doggie".

Middle Grandson said that SPCA stands for "Slow Progress Catching Animals". Oldest Grandson was not sentimental. "I wonder why they just didn't shoot it?" was his comment. That allowed me to discuss the 4th Rule: Be aware of your target and what's behind it.

Global Warming Cure??

Obama Science Advisor John Holdren’s idea of injecting sulphur dioxide (SO2) into the atmosphere sounds like “we had to destroy the world in order to save it”. I decided to do some back of the envelope calculations to test the feasibility of his idea.

We know that volcanic eruptions have caused global cooling (volcanic winter) in the past so let’s look at them as a model for Dr. Holdren’s idea.

Volcanic eruptions are classified by their “Volcanic Explosivity Index” (VEI). This is a number between 1 and 8 that relates to the amount of material the volcano ejects. The amount of material ejected is measured in cubic kilometers. A cubic kilometer is a cube that is over a half mile on a side. An eruption with a VEI of 8 ejects 1,000 cubic kilometers of stuff. One with a VEI of 7 ejects 100 cubic kilometers of stuff, and so on by factors of 10. For comparison, let’s look at some well known eruptions.

Mount St. Helens in 1980 had a VEI of 5
Mount Pinatubo in 1991 was on the high end of 6
Mount Tambora in 1815 was on the high end of 7

(By the way, the USA has had a couple of 8s back in prehistoric times. Where? Yellowstone!)

Mount St. Helens didn’t seem to cause much of a volcanic winter. But Mount Pinatubo is known to have reduced global temperature by 1 degree F for about 2 years. Mount Tambora caused the year without a summer and widespread starvation. So, if we were to try to control global temperature, we’d probably like to start with a Mount Pinatubo sized event and go from there.

It is known that Mount Pinatubo put 20,000,000 tons of SO2 into the atmosphere to a height of 35 kilometers. We can estimate the amount of energy required to do that using high school physics. Multiply the mass in kilograms by the height in meters and the gravitational constant and you get the energy in Joules required to raise that weight to that elevation.

(18.16 x 10**9 Kg)(35 x 10**3 m)(9.8) = 6.23 x 10**15 Joules

(note that I use the double asterisk ** to indicate scientific notation)

Well, hell! I don’t have a clue what a Joule is so let’s get that into something we all can recognize.

It so happens that a kiloton on TNT yields 4.184 x 10**12 Joules. The Hiroshima atomic bomb was 12.5 kilotons. Therefore, if we wanted to inject an amount of SO2 equivalent to the Mount Pinatubo eruption, we would need to expend the energy equivalent to 119 Hiroshima atomic bombs.

If you prefer BTUs, we’d need 5.9 x 10**12 BTUs. That’s a lot of heat! I leave to the reader to convert that into units of your preference.

I know that this is a rather simplistic analysis but I think it makes the point that the energy required to attain even a modest, and temporary cooling of the earth is massive.

Crawfish Time

Good Friday is typically the first family crawfish boil. We do two batches: a mild batch and a spicy batch. We also throw in sausage, potatoes, onion, garlic and corn. The spice concentrates in the vegetables but boy is it good.

USS Thresher

On this day in 1963 the nuclear submarine USS Thresher sank with all hands. It was the first post WW II peacetime submarine casualty. The mystery of her loss, and the efforts to find her location and determine the cause, resulted in the realization that a new engineering discipline, Ocean Engineering, was needed to cope with the problems of designing for ocean forces. It also led to the development of deep ocean search and rescue capability.

The loss of the Thresher is particularly poignant to me. I was born and raised in New Hampshire. Dad worked at the Portsmouth Naval Shipyard. Fathers of my friends worked there. I attended her launch with my Cub Scout Den. I still have mementos from the launching ceremony. What most people don’t realize is that 17 civilians also went down with her. They were shipyard employees and field engineers who were there to observe the operation of the subs systems. My father, or fathers of my friends, could have been onboard just as easily.

It turned out she was a victim of the Joule-Thompson Effect. Stated simply, the J-T Effect says that when the pressure on a compressible fluid under high pressure is reduced, the fluid will cool. Its simple high school physics. Mr Wizard TV show stuff. It was surmised that the Thresher suffered a piping leak that caused her reactors to shut down, or SCRAM. When they tried to blow the ballast tanks with high pressure air, the moisture in the compressed air froze because of the J-T Effect. The ice blocked the piping and shut off the ballast blow.

Take a minute if you will and go here and read the obituaries of the men lost on the Thresher. The crew included a few WW II veterans, several African Americans and two brothers. These men were the cold warriors of that era.