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Category: Educational (Page 2 of 27)

Educational topics and useful things to know.

General Sherman’s Prophetic Letter


General William Tecumseh Sherman is an important name from the U.S. Civil War. He was a distinguished military man and master of military strategy. Sherman was also a successful author, teacher, and businessman. When General Grant became president in 1869, Sherman succeeded him as Commanding General of the U.S. Army.

Sherman was born and raised in Ohio, but had many friends in the Southern States and enjoyed being there. In fact, he was in Texas when South Carolina seceded from the United States. He was so upset by this event that he cried and wrote the following letter to his friend, Professor David F. Boyd in Virginia, who was strongly in favor of secession. The letter proved to be an accurate analysis of the situation and visionary forecast of the final outcome.

General William Tecumseh Sherman, U.S. National Archives

He wrote:

“You people of the South don’t know what you are doing. This country will be drenched in blood, and God only knows how it will end. It is all folly, madness, a crime against civilization!

You people speak so lightly of war; you don’t know what you’re talking about. War is a terrible thing! You mistake, too, the people of the North. They are a peaceable people but an earnest people, and they will fight, too. They are not going to let this country be destroyed without a mighty effort to save it.”

“Besides, where are your men and appliances of war to contend against them? The North can make a steam engine, locomotive, or railway car; hardly a yard of cloth or pair of shoes can you make. You are rushing into war with one of the most powerful, ingeniously mechanical, and determined people on Earth — right at your doors.

You are bound to fail. Only in your spirit and determination are you prepared for war. In all else you are totally unprepared, with a bad cause to start with. At first you will make headway, but as your limited resources begin to fail, shut out from the markets of Europe as you will be, your cause will begin to wane. If your people will but stop and think, they must see in the end that you will surely fail.”

Drought Affects the Whole Country


When drought in the U.S. is mentioned, the first thing that comes to most people’s minds is the West, Southwest, and California in particular. There’s good reason for this. It’s been in the news every year. The rampant wildfires are terrible and spectacular. But the main threat of drought is to agriculture. California is the key to having nice things on our dinner tables. California produces 71 percent of the lettuce in the U.S, 90 percent of the strawberries, 99 percent of the garlic, 99 percent of the almonds, 99 percent of the grapes and world-class wines, and cantaloupes, watermelon, citrus, onions, celery, on and on. If we count the West Coast states, add apples, pears, cherries, and more.

Important as all that is to having nice things on the table, the meat and potatoes (literally), grains, and animal feed do not come from California. They come primarily from the middle of the country. The farmlands from Idaho, Montana, the Dakotas, Iowa, Nebraska, to Texas produce vast amounts of the staple foods we eat. In addition to feeding ourselves, the U.S. literally feeds the world.

How does all this stuff get where it’s going? Well, the United States was lucky. It came with a built-in railroad: the Mississippi River System.

Mississippi River System showing the Mississippi River and tributaries that are used for shipping purposes.

175 million (!) tons of freight a year is shipped on the Upper Mississippi system alone. For perspective, that’s 20,000 to 30,000 loaded freight trains. Not freight cars, freight trains.

Then we come to the Lower Mississippi and exports. The Port of South Louisiana handles 500 million tons of freight each year. Ninety-two percent of U.S. agricultural exports pass through the Port of South Louisiana. This is 78 percent of the world’s exports of feed, soybeans, livestock, and hogs. Sixty percent of the world’s exported grain passes down the Mississippi to the Port of South Louisiana. For perspective, that’s sitting by a railroad track and watching 25,000 loaded freight cars go by every single day. That’s not even possible on a single track.

So what does drought have to do with this? The Mississippi River System drains the central portion of the U.S.A. from Minnesota and Wisconsin to Texas, Montana, Kansas, Nebraska, Ohio, Illinois, Indiana, and so on. Drought is affecting these places too and the first sign of this is the water levels up and down the Mississippi. The water levels got so low this year that the barges that carry freight up and down the river were getting stuck on the bottom and causing traffic jams.

The problem should now be obvious. If low water becomes more frequent, and because of climate change it almost certainly will, it’s a huge problem. One could easily prove the point that the lifeblood of the country flows up and down the Mississippi River System. It’s the main artery. Disruptions here will upset not just agricultural products but every industry that involves heavy river freight starting with fuel oil, crude oil, coal, coke, fertilizer, limestone, iron, cement, and a long list more. The economic effects of this are staggering, not just for the U.S.A. but the world.

Solutions? There aren’t any good ones. One could build rail lines that parallel the river and tributaries, but this is a big project and cannot be done quickly. The land easement problems alone would take decades to sort out in the courts. More dams and locks on the river? This is possible in some few places but is an enormous project that would take decades to implement.

The good news is that scientists have been thinking about this for a long time. In recent decades we have greatly reduced the amount of water we take out of the river and use for irrigation and other purposes that evaporates or otherwise isn’t returned to the river. Since the drainage area of the Mississippi is so large, climate scientists can’t be certain about what’s going to happen at every point along the river. There’s evidence that the change is slow and that this year was an extra dry glitch. We must hope that this is true.

In any case, the Mississippi River problem is one to watch out for in the coming years. It’s a big one.

The Specious Appeal to Fairness


There are many kinds of fallacious arguments and logical fallacies. There’s one I see from time to time that doesn’t appear to have a name. At least I haven’t found it in any list of fallacious arguments. I call it the Specious Appeal to Fairness or SAF for short. I want to spotlight it for a moment so you can recognize it.

Note that there is an argument called an Appeal to Fairness but it’s not specious. An example of an appeal to fairness would be, “It’s not fair that a man is paid $15 an hour and a woman is paid $10 an hour for the same job.”

The Specious Appeal to Fairness has been around for a long time. It seems to crop up whenever there’s talk of loosening rules or requirements, forgiving debts or crimes, granting amnesties, or increasing inclusivity.

Below are some examples. Some examples appear more specious than others, but they are all specious.

Amnesty to Immigrants

Granting amnesty to undocumented immigrants isn’t fair to those who came here the right way.

(Ignoring that many who are here legally now were granted amnesty under President Reagan or who came illegally and gained residence later.)

Student Debt

Forgiving student loan debt isn’t fair to those who worked hard and paid theirs.

Code Requirement

In my hobby of ham radio, the ability to receive Morse Code used to be a stringent requirement. It took long hard practice, months for some, years for others, to build this skill to pass the higher tests. In the 1980s and 90s, the arguments raged red hot over whether the requirement should be dropped. One of the arguments was that dropping the code requirement isn’t fair to those who got their licenses the hard way. Well, code was dropped and the hobby not only survived but is thriving. Not only that, voluntary learning and use of Morse Code is growing rapidly. No one ever imagined that would happen.

Freeing the Slaves

During the U.S. Civil War, there was talk of freeing the slaves. An opinion piece was published in a newspaper arguing against it saying that freeing the slaves wasn’t fair to those who had escaped on their own.

Jesus and The Five-Thousand

Jesus feeding the five-thousand from five loaves and two fishes wasn’t fair to those who brought their own food.

SAF Trolley Problem

You’re probably familiar with the Trolley Problem, a thought experiment in morality / ethics. Here you see a trolley car heading for a track where it will kill five people. You can pull a lever and route the trolley to another track where only one person will be killed. Should you pull the lever?

The SAF version goes like this. You see a trolley car has just killed five people. It’s heading for a track where it will kill another five people. You can pull a lever to reroute the trolley to a track where no more people will be killed. Is it fair to those already killed to reroute the trolley?

Conclusion

All of the above arguments strike me as ridiculous. But they don’t seem ridiculous to everyone.

Depending on which poll one believes, somewhere between 30 and 50 percent feel that forgiving student loans isn’t fair to those who paid theirs. That’s a lot of people who feel this way so a lot of people subscribe to this way of thinking.

Opinion

I think that agreement or support of these SAF style arguments implies an elitist worldview. It implies a person that wants to be a gatekeeper with an exclusive rather than inclusive mindset.

What do you think?

Waterproof Lipstick is Forever


Ever more frequently one sees “forever chemicals” mentioned in the news. They’ve become so pervasive they’re found in most water supplies, in the rainfall over Antarctica, and in the bloodstream of every person.

The forever chemicals being talked about are members of a large family of manmade chemicals called PFAS, PFOS, and PFOAS. The archtype of this family is perfluorooctanoic acid. These have been manufactured since the 1940s and do not occur in nature. More members of this family are developed each year.

Perfluoro- and polyfluoro- chemicals have become so widespread because they are so useful. Most of them repel both water and oils. They’re used to make Teflon and other non-stick coatings, stain resistant carpet, water-repellent clothes, fire-fighting foam, ski wax, waterproof cosmetics, and many other products.

These molecules are very stable so they don’t break down in the environment. As a result, they’ve found their way into almost everything — air, water, and soil all over the planet, and inside our bodies.

They are not harmless. In recent years, studies have shown possible causal connections with testicular and kidney cancer, fetal problems like low birth weight, early puberty, immune system problems, liver damage, thyroid disease, blood pressure problems during pregnancy, and colitis.

Study results thus far have been inconclusive but it’s a major concern because these chemicals are everywhere and we can’t effectively get rid of them. They become more abundant each year.

Waterproof Lipstick

Published in The Journal of Environmental Science & Technology on June 15, 2021 is a peer-reviewed study conducted by researchers at Notre Dame University. The study shows that roughly half of the 231 cosmetics tested contained PFAS. Most of these products did not show PFAS on their list of ingredients. About 60 percent of eyeliners, foundations, and liquid lipsticks, and 80 percent of waterproof mascaras contained PFAS. How much are you ingesting? There’s no solid data on this question but the answer is clearly not zero.

Another problem with waterproof lipstick is that it works really well. Too well. Lipstick prints on water and wine glasses are durable. Unlike conventional lipstick, waterproof lipstick is unaffected by the high pressure, heat, and chemicals used in commercial dishwashers. Nobody wants to receive a glass with somebody else’s lipstick print on it. This means that each glass must be inspected and lipstick scrubbed off by hand. A mini-industry has sprung up around this problem that offers special tools, rim scrubbers, and harsh chemicals to help restaurants and bars deal with the problem. This results in more labor and higher costs which will be passed on to the customer.

Please keep the above in mind when making a purchasing decision. You must decide for yourself if it’s worth it.

ADDENDUM:

On March 2, 2023 AP News reported that the EPA is going to start addressing the problem of PFAS in drinking water. However, the article makes no mention of PFAS in cosmetics.

I assume that PFAS in cosmetics has to be addressed by the FDA. Until this is dealt with, buildup of PFAS in the environment will continue.

https://apnews.com/article/pfas-epa-water-regulations-d2d5052c36a5a95f4e56866f028c9c4f

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