Author Archives: R.E. Buxbaum

About R.E. Buxbaum

Robert Buxbaum is a life-long engineer, a product of New York's Brooklyn Technical High School, New York's Cooper Union to Science and Art, and Princeton University where he got a PhD in Chemical Engineering. From 1981 to 1991 he was a professor of Chemical Engineering at Michigan State, and now runs an engineering shop in Oak Park, outside of Detroit, Michigan. REB Research manufactures and sells hydrogen generation and purification equipment. He's married with 3 wonderful children who, he's told, would prefer to not be mentioned except by way of complete, unadulterated compliments. As of 2016, he's running to be the drain commissioner/ water resources commissioner of Oakland county.

Sleepwalking into WWI, and WWIII

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A remarkable book by Christopher Clark on WWI posits that WWI was an accident, entered into, by sleepwalk. That is, it was not brought on by the elaborate plan of an evil aggressor, Germany or Britain, acting for dominance or economic gain, but rather that many individuals precipitated the deadly conflict through a series of ever-more dangerous, unplanned steps. The great diplomats went on vacation following the June 28, 1914 assassination, and each minor actor felt a need to push for a previous status quo, emboldened by the certainty that nothing bad would happen, since none of the last acts had caused any serious harm, at least not to them. There was, in Clark’s view, a general numbness caused by earlier wars: in China and Russia, in Serbia and Albania, and by Italy’s invasion of Africa, and the fact that there had not been a major, deadly conflict since the Crimean war. In this environment, one nation shoving another was seen as normal conflict until a war broke out that killed millions and toppled four empires: the Russian, Austrian, German, and Ottoman.

Princip shoots Count Ferdinand, June 28, 914. Getty Immage.

Clark points out, too that the Serbs, the folks who started the war, benefited from it. They escaped from imperial control by Austria and from The Ottoman Empire. Self determination was the motivation for the assassination, and it worked too, for the Czechs, Croats, Poles, and communists. In just a few years, the former group got their own countries, and the communists took Russia, something that no one saw coming in June, 1914.

The key sleep-walk steps to war were as follows: In response to the assassination, and a decade of earlier insults, Austria-Hungary, demanded harsh cocessions from Serbia that Serbia found unacceptable. Austria Hungary, backed by Germany and Italy, declared war on Serbia. Russia then mobilized its troops for war with Germany, so Germany declared war on Russia. France, an ally of Russia, then mobilized for war with Germany, so on August 2 – 3, Germany declared war on France and invaded Luxembourg and Belgium. Why Luxembourg and Belgium — because they would not allow free transport of German troupes to attack France. This forced Great Britain to declare war on Germany, which, finally, on August 6, brought Austria-Hungary to declared war on Russia, and effectively on the rest of the Allies. Over the next few years, we (the US) were dragged in along with Japan, on our side.

What a mess, but I fear we may be sleepwalking to the same, grim altercation via our wars in Ukraine and Syria. As at the beginning of WWI, there are two big power alliances: NATO including The US and most of Europe, versus a BRICS alliance of Brazil, Russia, India, Iran, China, and South Africa, along with a few minor others. The alliances are now three years into a proxy war in Ukraine, and another one in Syria. So far the declared combatants are Russia vs Ukraine, and Turkey vs Syria, but both sides keeps harassing the other at a higher and higher pace. So far, the sleep-walk steps were that Russia invaded Crimea, in response to some insult, and then attempted to take Kiev. The NATO alliance responded provided limited weapons to Ukraine. But, as these proved insufficient, we (NATO) provided greater and more deadly weapons, plus some volunteer troops. Meanwhile Russia’s BRICS allies are selling drones and missiles into the conflict in return for Russian gold, wheat, and raw materials. One of us, perhaps Ukraine, then cut the RussianGerman gas pipeline, while China seems to have cut important communications cables in the Baltic Sea.

North Korea began sending troops, 12,000 apparently, to fight on the Russian side, while Biden has sent long-range missiles to be used for strikes deep into Russian territory, on logistic centers, train depots, food stores, airports, etc. Putin has threatened a nuclear response, but has done nothing so far beyond sending a few long range, hypersonic missiles against civilian targets and against Ukraine’s power grid. He’s lost some 600,000 Russians, and has lost control of Syria and Armenia, so he has reason to be upset. Ukraine has lost some 400,000, and is still losing territory, but is still demanding total victory, the removal of all Russian forces, including those in Crimea.

The fight has spread to Syria, where the US, Israel, and Turkey have bombed in recent days, something I would call an act of offensive war against a sovereign unstable government. It’s not totally unprevoked, of course. Syria and Iran had been attacking Israel for years from Lebanon, by way of Hezbollah jihadists. Recently Israel took out a major fraction of Hezbollah, and the jihadists (Sunni) seems to have gone back to Syria, and have removed Assad, Syria’s Shia president for life, with help from Turkey, another Sunni Moslem country. This too is an act of war. Assad retains a sliver on the coast where the Russian bases are, the red areas in the map below, but he isn’t popular with anyone at the moment. The rebel leader, Abu Mohammed al Jolani, was a member of Al Quada till 2006, and then member of ISIS (ISIL) under Abu Baghdadi till 2016 at least. He’s still on our terrorist list, though he now claims to be a progressive Moslem. Not everyone is convinced, or happy with him. Syria is divided into seven (or more) control zones, shown on the map below. He could bring peace to Syria, but his path to peace is clearly further war.

On the legal and PR front, we’ve called Russian president Putin a madman and war criminal, we support Turkey’s efforts to overthrow Assad, but complain about his attacks on the Kurds, the yellow areas, and dark green at right, and we both applaud and condemn Israeli President Netanyahu for attacking Syria in the south, and in the red sliver, destroying Syria’s navy. Meanwhile, we (the US) have taken it upon ourselves to attack ISIS (ISIL) camps in central Syria, the grey areas, as well as attacking troops (Iranian Shia) entering from Iraq. By normal definition, this would put us at war with Syria, and perhaps with Turkey since we support the Kurds in their war against Turks.

Recently we’ve decided that the rebel leader, al Jolani, might be taken off the terrorist list subject to a few conditions (I wonder which). We (Biden, Shumer) along with the International Criminal Court have called for the arrest and imprisonment of Israel’s PM Netanyahu. The Turks too have join in on this, while somewhat cheering Israel’s destruction of Assad’s navy. The Druze, allies of Israel (and us?) seem to be at war with al Jolani, and likely the Turks and Iran. They’re in south-east Syria, near Deraa, not shown by a color on the map. Meanwhile, Russia is trying to make peace with al Jolani, to secure their military bases, while Iran (Shia) has reached out to al Jolani (Sunni) in an effort to join with him in a war against Israel. It’s not quite tipped into world war, but it seems awfully close.

One possible peace maker might be the incoming US president, Trump, but the outgoing president, Biden, has done his best to tie his hands, branding him as a felon and seditionist, as well as claiming he’s a Russian asset. European leaders don’t like him either. France’s Macron might a peacemaker, but Macron’s government has fallen. The Germans or Turks might be peacemakers, but the government of Germany has nearly fallen, the economy of Germany is hurting, and Turkey is a combatant, at war with the Kurds and Druze. Iran, and Russia, though not combatants, are directly involved in the fighting, and both countries are under sanction by the US and EU, and the UN is discredited from it’s years helping Hezbolla. I thus see no clear path to peace and no peacemaker who will dial back the drama before we sleep-march into WWIII.

Robert Buxbaum, December 11, 2024

Bendy hockey sticks, and my, half-bendy version.

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Hockey sticks have gotten bendier in recent years, with an extreme example shown below: Alex Ovechkin getting about 3″ of bend using a 100# stiffness stick. Bending the stick allows a player to get more power out of wrist shots by increasing the throw distance of the puck. There is also some speed advantage to the spring energy stored in the stick — quite a lot in Mr Ovechkin’s case.

Alexander Ovechkin takes a wrist shot using a bendy stick.

A 100# stiffness stick takes 100 pounds of force in the middle to get 1″ of bend. That Ovechkin gets 3″ of bend with his 100# stick suggests that he shoots with some 300 lbs of force, an insane amount IMHO. Most players use a lot less force, but even so a bendy stick should help them score goals.

There is something that bothers me about the design of Alex Ovechkin’s stick though, something that I think I could improve. You’ll notice that the upper half of his stick bends as much as the lower half. This upper-bend does not help the shot, and it takes work-energy. The energy in that half of the bend is wasted energy, and its release might even hurt the shooter by putting sudden spring-stress on his wrist. To correct for this, I designed my own stick, shown below, with an aim to have no (or minimal) upper bend. The modification involved starting with a very bendy stick, then covering most of the upper half with fiberglass cloth.

I got ahold of a junior stick, 56″ long with 60# flex, and added a 6″ extension to the top. Doing this made the stick longer, 62″ long (adult length) and even more bendy. One 1″ of flex requires less force on a longer stick. I estimate that, by lengthening the stick, I reduced it to about 44#. Flex is inversely proportional to length cubed. I then sanded the upper part of the stick, and wrapped 6 oz” fiberglass cloth (6 oz) 2-3 wraps around the upper part as shown, holding it tight with tape at top and bottom when I was done. I then applied epoxy squeezing it through the cloth so that the composite was nearly transparent, and so the epoxy filled the holes. This added about 15g, about 1/2 oz to the weight. Transparency suggested that the epoxy had penetrated the cloth and bonded to the stick below, though the lack of total transparency suggests that the bond could have been better with a less viscous epoxy. Once the epoxy had mostly set, I took the tape off, and stripped the excess fiberglass so that the result looked more professional. I left 23″ of fiberglass wrap as shown. The fiberglass looks like hockey tape.

Assuming I did the gluing right, this hockey stick should have almost all of the spring below the shooter’s lower hand. I have not measured the flex, but my target was about 80 lbs, with improved durability and the new lower center of bend. In theory, more energy should get into the puck. It’s a gift for my son, and we’ll see how it works in a month or so.

Robert Buxbaum, December 5, 2024.

Check the screws on your door locks.

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Original hardware brass screws from my door and locks, plus one of the stainless screw that I used as a replacement.

I just replaced the door knob assembly on my home and found that it was held in place by a faceplate that was attached by two, 5/8″, brass screws. These screws, shown at right with their replacement, would not have been able to withstand a criminal, I think. Our door is metal, foam filled, and reasonably strong. I figure it would have withstood a beating, but the brass screws would not, especially since only 1/4″ of the screw is designed to catch foam. Look closely at the screws, and you will see there are two sizes of pitch, each 1/4 long. Only the last 1/4″ looks like it was ever engaged. The top 1/4″ may have been designed to catch metal, but the holes in the door were not tapped to match. The bottom 1/4″ held everything. Even without a criminal attack, the screw at right was bent and beginning to go.

Instead of reusing these awful screws or buying similar ones, I replaced them with stainless screws, 1 3/4″ long, like the one shown in the picture above. But then I had a thought — what were the other locks on my door attached with? I checked and found my deadbolt lock was held in by two of the same type of sorry, 5/8″ brass screws. So I replaced these too, using two more, 1.75″ stainless steel. Then, in my disgust, I thought to write this post. Perhaps the screws holding your door hardware is as lousy as was holding mine. Take a look.

Robert Buxbaum, November 28, 2024

This is not the most important election, 1860 was

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Every year we hear the same claim: that this the most important election of America’s history. This year is among the more contentious than most, but the issues dividing the candidates are few. Both, for example, claim they will protect the border and spur the economy. In lieu of issues, there’s name calling. Trump claims Harris is as incompetent buffoon and Harris claims Trump is a fascist dictator. The rancor practically guarantees as they’ll be riots whoever wins but, as these things go, the election is less important, and divisive than ’64 and ’68, and in particular, the election of 1860.

Following the 1860 election, election seven states ceded from the union and we had a Civil War. Even the most bleak prediction for 2024-25 is for a more peaceful transfer of power. The election of 1860 had two major issues on the ballot; one was slavery or rather the expansion of slavery to the territories, and the other was implementation of the Morrill tariffs. These import taxes, proposed by Justin Morrill and passed but not yet implemented, would have raised the average agricultural duty from 15% to to 47%. Duties on durable goods wool rise to 65%, with the burden falling disproportionately on the southern states. Duties on durable goods. There was also a price schedule that would have prevented British shippers from minimizing the effect by falsely claiming a price far below market, something China currently does. In September 1860, Republican Leader Thaddeus Stevens told a New York City audience that “the Tariff would impoverish the southern and western states, but that was essential for advancing national greatness and the prosperity of industrial workers.”

Matching the two sides to the two major issues of the day, there were four major candidates for president in 1860. All of them won states. Lincoln carried the greatest number, 18, and won the most electoral votes, 180. He was for high tariffs and against the expansion of slavery. Second was John Breckinridge, the Southern Democrat, who carried 11 states and got 72 electoral votes. He was for the expansion of slavery and against the higher tariffs. Then there was Stephen Douglas, the Northern Democrat, who was for allowing the expansion of slavery, considering it a “states right,” and also for the higher tariffs. Douglas carried only one state, Missouri, with 12 electoral votes. Finally, there was John Bell, the Constitutional Union candidate, who carried three states, Virginia, Tennessee, and Kentucky, representing 39 electoral votes. He opposed the expansion of slavery and also the increased tariff, but he generally believed that compromise was always possible. This was the worst vote split in US history. The worst split I’ve seen was 1968, when three candidates carried states.

Had either Bell or Douglas won, I suspect that the Civil War could have been avoided, at least temporarily. Virginia, the most important of the slave states, had shown it was willing to accept an anti-slavery president so long as he did not impose high tariffs — tariffs that benefitted the northern industrial workers and manufacturers at the expense of southern consumers and agricultural producers. Lincoln’s victory precipitated the immediate secession of 3 states. Another 4 seceded after inauguration.

The south imagined they could walk away because that’s how they read the constitution before the 13th amendment. They imagined they could win a civil war because they imagined they had British military support. “Cotton was king,” they claimed. The UK prime minister, Lord Palmerston, had told secretary Adams, “We do not like slavery, but we want cotton, and we dislike very much your Morrill tariff.” As it was, the British stayed on the sidelines, in part because of diplomacy. Besides, the gunship Monitor showed that the North could sink most any British ship that entered US waters.

As for 2024, I expect there will be riots whoever wins, but nothing more. The parties are realigning significantly, as happened in 1964-68, and neither side much understands the appeal of the other. This seems like less of a wrenching election than in 1964 and 1968, though. In ’64-’68 US boys were dying in Vietnam in numbers, and black folks and their white friends were being lynched in the south. Nothing like that is happening today. Today’s riots have been fueled by nothing more than name-calling, fear, and the occasional assassination attempt. Mild, even compared to 1968.

Robert Buxbaum, November 4, 2024. Justin Morrill is mostly remembered today for the Land-grant college act of 1862. This created an agricultural -technical college in each state. I taught at Michigan State University, Michigan’s land grant university. I’m generally a fan of tariffs, both as an aid to the domestic economy and as a tool of foreign policy. I present these views here. I got these views from Peter Cooper.

Sailors, boaters, and motor sailing at the hull speed.

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I’ve gone sailing a few times this summer, and once again was struck by the great difference between sailing and boating, as well as by the mystery of the hull speed.

Sailors are distinct from boaters in that they power their boats by sails in the wind. Sailing turns out to be a fairly pleasant way to spend an afternoon. At least as I did it, it was social, pleasant, and not much work, but the speeds were depressingly slow. I went on two boats (neither were my own), each roughly 20 feet long, with winds running about 10-15 knots (about 13 mph). We travelled at about 3 knots, about 3.5 mph. That’s walking speed. At that speed it would take about 7 hours to cross Lake St. Clair (25 miles wide). To go across and back would take a full day.

Based on the length of the boats, they should have been able to go a lot faster, at about 5.8 knots (6 mph). This target speed is called the hull speed; it’s the speed where the wave caused by the bow provides a resonance at the back of the boat giving it a slight surfing action, see drawing.

This speed can be calculated from the relationship between wave speed and wavelength, so that Vhull = √gλ/2π where g is the gravitational constant and λ is the water line length of the boat. For Vhull in knots, it’s calculated as the square-root of the length in feet, multiplied by 1.34. For a 20 foot boat, then,

Hull speed, 20′ = 1.34 √20 = 1.34 x 4.5 = 6.03 knots.

While power boats routinely go much faster than this, as do racing skulls and Americas cup sailboats, most normal sailboats are designed for this speed. One advantage is that it leads to a relatively comfortable ride. There is just enough ballast and sail so that the boat runs out of wind at this speed while tipping no more than 15°. Sailors claim there is a big increase in drag at this speed, but a look at the drag profile of some ocean kayaks (12 to 18 feet, see below) shows only a very slight increase around this magical speed. More important is weight; the lowest drag in the figure below is found for the shortest kyack that is also the lightest. I suspect that the sailboats I was on could have gone at 6 knots or faster, even with our current wind, if we’d unrolled the spinnaker, and used a ‘screecher’ (a very large jib), and hung over the edge to keep the boat upright. But the owner chose to travel in relative comfort, and the result is that we had a pleasant afternoon going nowhere.

Data from Vaclav Stejskal of “oneoceankyacks.com”

And this brings me to my problem with power boating. Th boats are about the same length as the sailboats I was in, and the weight is similar too. You travel a lot faster, 20 to 25 knots, and you get somewhere, but the boats smell, and provide a jarring ride, and I felt they burn gas too fast for my comfort. The boats exceed hull speed and hydroplane, somewhat. That is, they ride up one wave, fly a bit, and crash down the other side, sending annoying wakes to the sailboaters. We crossed lake St. Clair and rode a way down the Detroit river. This was nice, but it left me thinking there was room for power -assisted sailing at an intermediate speed, power sailing.

Both sailboats I was on had outboard motors, 3 hp, as it happened, and both moved nicely at 1 hp into and out of the harbor, even without the sail up. Some simple calculations suggest that, with I could power a 15 to 20 foot sailboat or canoe at a decent speed – hull speed – by use of a small sail and an electric motor drawing less than 1 hp, ~400 W, powered by one or two car batteries.

Consider the drag for the largest, heaviest kayak in the chart a move, the Cape Ann Double, going at 6.5 knots. At 6 knots, the resistance is seen to be 15 lbs. To calculate the power demand, convert this speed to 10 fps and multiply by the force:

Power for 6 knot cruising = 10 fps x 15 lbs = 150 ft lbs/s = 202 W or 0.27 hp.

Outboard motors are not 100% efficient, so let’s assume that you need to draw more like 250 W at the motor, and you will need to add power by a sail. How big a battery is needed for the 250 W? I’ll aim for powering a 4 hour trip, and find the battery size by multiplying the 250 W by 4 hours: that’s 1250 Hrs, or 1.25 kWh. A regular, lithium car battery is all that’s needed. In terms of the sail, I’m inclined to get really invovative, and use a Flettner sail, as discussed here.

It seems to me that adding this would be a really fun way to sail. I’d expect to be able to go somewhere, without the smell, or the cost, or being jarred to badly. Now, all I need is a good outboard motor, and a willing companion to try this with.

Robert Buxbaum, Sept. 9, 2024

China’s space station and the ISS, a comparison

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It gets so little notice from the news agencies that many will be surprised to find that China has a space station. It’s known alternately as the Tiangong Space Station or the CSS, Chinese Space Station; it’s smaller than the International Space Station, ISS, but it’s not small. Here is a visual and data comparison, both from Wikipedia.

China’s space station is smaller than the ISS, but just about as capable. Cooperation leads to messiness (and peace?)

The ISS has far more solar panels, but the power input is similar because the CSS panels are of higher efficiency. As shown in the table below, the mass of the ISS is about 4.5 times that of CSS but the habitable volume is only 3 times greater than of CSS, and the claimed crew size is similar, of 3 to 6 compared to 7. The CSS is less messy, less noisy, with less mass, and more energy efficiency. Part of the efficiency comes from that the CSS uses ion propulsion thrusters to keep the station in orbit, while the ISS uses chemical rockets. The CSS thus seems better, on paper. To some extent that’s because it’s more modern.

Another reason that the ISS is more messy is that it’s a collaboration. A major part of its mission is to develop peaceful cooperation between the US, Europe and Russia. It’s been fairly successful at this, especially in the first two decades, and part of making sure parts from The US, Russia, Europe, Japan, and Canada all work together is that many different standards must be tolerated and connected. The ISS tolerates different space suits, different capsules, different connections, and different voltages. The result is researchers communicate, and work together on science, sending joint messages of peace to the folks on earth. Peace is an intended product.

By contrast, the Chinese space station is solely Chinese. There are no interconnection issues, but also no peace dividend. It has a partially military purpose too, including operation of killer satellites, and some degree of data mining. This was banned for ISS. So far the CSS has hosted Chinese astronauts. No Chinese astronauts have visited the ISS, either.

Long march 6A rocket set to supply the CSS. It is very similar to the Delta IV.

India was asked to join the ISS, but has declined, wishing to follow China’s path of space independence. The Indian Space Research Organization plans to launch a small space station on its own, Gaganyaan, in 2025, and after that, a larger version. That’s a shame, though it’s not clear how long cooperation will continue on the ISS, either. See the movie I.S.S. (2023) for how this might play out. Currently, there is a tradition of cooperation about ISS, and it’s held despite the War in Ukraine. The various nations manage to work together in space and on the ground, launching people and materials to the ISS, and working together reliability.

Although it isn’t a direct part of the space stations, I should mention the troubles of the Boeing Star-liner capsule that took two astronauts to the ISS compared to the apparently flawless record of the CSS. The fact is, I’m not bothered by failures, so long as we learn from them. I suspect Boeing will learn, and suspect that this and other flailing projects would be in worse shape without the ISS. Besides, the ISS has been a major catalyst in the development of SpaceX, a US success story that China seems intent on trying to copy. SpaceX was originally funded, at low level, to serve as a backup to Boeing, but managed to bypass them. They now provide cheaper, more reliable travel through use of reusable boosters. The program supplying CSS uses traditional, disposable rockets, the Long March 5 and 6 and 7. These resemble the Atlas V, Delta IV and Delta IV Heavy. They appear to be reliable, but I suspect they are costly too. China is currently developing a series of reusable rocket systems. The Long March 9, for example will have the same lift capacity as SapceX’s Starship, we’re told. Will the Indian program choose this rocket to lift their space station, or will they choose SpaceX, or something else? The advantages of a reusable product mostly show up when you get to reuse it, IMHO.

Robert Buxbaum, September 10, 2024.

We’re depressed, allergic, overweight, alone, and demented. What causes what?

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Among the wonders of the western world is how many people are allergic to nuts compared to a few decades ago, and to gluten, and to a host of other things that hardly anyone was allergic to 50 years ago. Perhaps it’s a change in perception, but it doesn’t seem that way.

When I was in public school in NY, back in the 1960s, there was a subsidized lunch program serving, every day, peanut butter sandwiches. Peanut butter is nearly totally fat. It was ladled each day, from a giant tub, provided by the USDA, and slathered on USDA bread along with jelly from some other vat. The smell filled the lunch area, and the fats and sugars filled our stomaches. No one seemed bothered by the nuts, and no one showed obvious signs of passing out. And despite the ill diet, we were less obeease than today. Even today, in poor countries, thy still serve massive peanut butter dishes, or bread covered in lard, and these countries show fewer allergy problems, and less obesity in general.

Perhaps it is the lack of exposure to peanuts in the US that caused the allergy (sounds almost plausible), and maybe it’s the dietetic food that causes obesity, and the glut of non-gluten that causes gluten allergies. These connections may be false, but If true, it would suggest we’re in for many more problems.

Moving to depression and dementia. We’re seeing more and more of both, and at earlier ages. In our era, virtually everyone over 80 shows signs of clinical dementia, often Alzheimer’s dementia, but the rates are rising, especially in those 55-70, and it seems most every adult is depressed. I don’t know why, though lots of people on the internet have speculative explanations. There are also cures, and perhaps some work. The research behind at least one of the best hopes for an Alzheimers cure was shown to be falsified, just made up. Not that funding was stopped quite, highlighting another problem that is becoming more common: people in trust positions no longer behave in a trustworthy way. Nor are they punished for lying. Strange to add that an anti-obesity drug, Metformin, seems to actually work at weight loss, and helps against Alzheimers dementia. Then again, from other research, it seems that obesity protects from dementia.

Some of the problem seems to be societal, a lack of friendship and companionship. I could imagine that isolation leads to dementia, depression, and weight gain. Another thought, pushed by RFK Jr., is that new drugs and vaccines are responsible for allergies and ADHD, along with changes in diet. It’s possible. At least some comes from early diagnosis, and a change in the definition of dementia. Perhaps that’s the reason for the significant difference state to state. Yesterday’s curmudgeon is redefined as depressed, and drugged (more in some states than others), and becomes isolated (again more in some communities). The disoriented, lonely patient is then given anti anxiety drugs and classified as a dementia patient. It happens in some cases, but there seems to be a rise in real dementia too: the sort of stumbling and blankness that reflects general brain deterioration. As for ADHD, I’m still not convinced this is a new real disease; it could be that’s how boys always behaved.

Would we be less depressed or demented or less autistic with different vaccinations, or different foods, or with more human interaction? Would people be less isolated if they were less depressed or autistic? RFK’s family now claims that RFK Jr is demented himself for even asking these questions. My guess, totally unsupported is that the rise in allergies, dementia, obesity, and depression are related somehow, but I’m not convinced that RFK Jr. has picked out the right connection. What causes what? Perhaps someone can use statistics, or biology experiments to help untangle this stuff. It seems horribly important to the majority of Americans.

Robert Buxbaum, Sept 10, 2024. There was a. bit of a joke in the last comments: my daughter got a degree in epidemiology, and is employed in part to answer just the sort of questions I’ve posed.

Cursive writing is art, and should be taught in school

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Few people learn cursive these days with any skill or speed. It’s a shame. This is a form of traditional art and communication. Handwriting is a slower way of writing, that leads to a different type of letter or essay. The sentences are, typically longer, and the words more expressive because the experience of writing and reading cursive is more expressive than with text. The emotional state and energy of the writer comes through the cursive writing, because the writing itself is a form of creative art, adding to the words.

Send a letter or a post card, and you’ve sent a work of art. You’ve communicated words, or course, but far more than with a text or email. First off, there is the picture on the card. You bought that card, or took the picture. Then there is the art of how many words you use. Each letter is directed to only one person, not to 100 as with a text. As a result, people will keep your letter or card far more than they will not keep a text an email. It is more from you, and more to them. You are likely to put more (or different) things in: experiences and feelings that don’t go into an email or text-letter. The size of your writing communicates and even your cross-outs are part of a cursive communication. With email or text, there are no natural cross outs, and you can send the same letter to 100 people, so you write more blandly, with an eye for eventual reuse for someone else. A cursive note is intended for only one person, the one recipient, and this affects both the words, and the form of the words.

Cursive also lends itself to adding a small sketch or doodle. This becomes part of a personal part of the art in a way that does not fit with normal text. It’s calligraphy and conceptional art, an important part of education, and a continuation of western culture. In normal texts, some people have come to add emojis or GIFs, but these are nowhere near as personal or expressive. The cursive letter or note is personal and spicy. It’s an important art form, at least a valid an art form as any that could be taught in school, and it should be.

Robert E. Buxbaum, Sept 1, 2024. I’m running for school board, and like the idea of teaching basic knowledge as a foundation of creativity. One of these basics, I think, is cursive writing.

Fewer serial killers, more mass shootings, blame unfriendliness not lax gun laws

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It’s hard to notice the lack of something, but there’s been a sharp drop-off in the the number of serial killers. Nearly gone are folks like John Wayne Gacy (the clown killer), Jeffrey Dahmer (severed heads, cannibalism, necrophilia), Gary Ridgway, “The Green River Killer” (71 prostitutes killed). Mostly, they were sexual sadists, men who’d have sex with strangers (able or female) and then kill them. In 1987, there were 198 active in the US and many more inactive; by 2018 it was down to 12. And these few are less-prolific, and less-colorful, like Anthony Robinson, “the shopping cart killer”, who killed 4-6 in DC, transporting the bodies in shopping carts.

It’s not clear why there are so few these days. Perhaps it’s the prevalence of surveillance cameras, or improvements in DNA and other pic technology. But these explanations don’t explain why there were so few before 1960. There were some mass murderers, “Jack the Ripper,” “the Boston Strangler” but few before 1960.

Police like to credit the drop off to their detective skills, but there are still plenty of violent crimes that go unsolved, about half the murders in Detroit for example, or most of the rapes in Europe. I suspect that serial killing spiked up in the 60s because of a spike in friendliness, and spiked down in the 2000s because it ended. Before the hippy era, people were cautious of gangsters, rapists, homosexuals, and spies under the bed. But that changed in the 60s. Folks thought it was cool to hitchhike, or pick up random guys. Now, we’re back to being cautious.

A personal story: I was visiting Toronto in the late 1980s and someone I didn’t know overheard that I was planning to drive back to Detroit that afternoon. He asked if I would not mind driving his teenaged daughters to Detroit to see their grandmother, and I said “yes.” At the border, the guards asked who these girls were, and I said I didn’t know. I hadn’t asked. The border guards let us through without passports after a call to the grandmother. I would not be as ready to offer a ride today, and the parents would not be as trusting, nor would the guards.

Serial killings are down since 1990, but mass shootings are up.

Despite much the stricter gun laws, there’s been a rise in crime and a steady growth in the number of murderers in our major cities. There’s also been a rise in synagogue attacks, and a rise in mass murders. These folks kill many in one day or as part of gang-drug activity. Stricter gun laws seem to have made things worse, not better. They do not stop the killers and they hamper the defenders. I took a look at synagogue attacks, and find a pistol would have helped.

On a societal level, I think it would help to have fewer illegal aliens, or aliens who enter with no positive record or skills. It would help to have psychological treatment and lockup for crazy folks and prisoners. Currently, we send violent crazy folks out on the streets until they do something true horrific. More consistent prison sentences are needed for criminals too. We’ now’ve come to use the courts for political theater: Biden’s son should not go to jail for years because he lied on a gun purchase, nor should Trump get for putting down a prostitute as “legal fees”. Nor is his half-billion dollar fine appropriate. Minor crime deserves minor punishment. As a result of our crazy courts, violent criminals are let go as with the MSU killings near me. He was a crazy violent black man, and there was no way, in the law to give him a short sentence, or counseling, or job training. When our incarcerated leave prison, they have anger, plus no jobs or skills. Don’t be surprised when these folks turn to violent crime.

Robert Buxbaum, June 23, 2024

Germany’s hydrogen trains and boats almost make sense

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Germany’s green transition is a disaster. Twenty years ago, Germany had 23 nuclear power plants that generated 30% of the country’s electricity cleanly, cheaply, and reliably. These plants have all been shut by the government as part of a commitment to clean energy. What could be cleaner? Germany has switched to a mix of wind and solar, plus a significant shift to coal power. Wind and solar use a lot of land compared to nuclear, and they break down leaving fields of debris. There is now a lack of electricity to power homes and industries, and what power there is, is unreliable, due to the many dark windless days in Germany.

The lack of reliable electricity is crippling German industry now that Russian gas has been cut off. In this environment, why would the Germans order special trains and boats that burn, hydrogen that’s made from electricity and natural gas? My understanding of the reason is that, Germany sometimes has too much wind power and nothing to do with it. They plan to store this excess by making hydrogen that they can use to power their trains and boats. The cost is high, and the efficiency is poor, but the electricity is free.

Hydrogen is not as compact a fuel as gasoline, nor is it as cheap as electricity, but it’s cleaner than gas, and in some ways it’s better than battery-stored electricity. While hydrogen takes a lot of storage space relative to gasoline, high pressure helps, and the storage is cheaper than with batteries. Also, hydrogen fuel is transferred faster than electric fuels. Trains and ships are chosen for hydrogen because they are good at carrying bulky items. The transition to hydrogen is relatively straightforward with trains, since many are already powered by electricity. Hydrogen fuel cells can make the electricity on board (in theory), while avoiding the need for expensive overhead wires. The idea sort-of makes sense.

Germany’s first hydrogen train. cancelled after 1 year of poor operating.

The first German train to use hydrogen powered them with fuel cells that generated electricity. It began service in October 2022, but the fuel cells proved unreliable. Service ended one year later, October 2023, replaced by polluting diesel (see here). The Hannover line plans to replace these with battery-powered trains over the next few years. There are also plans for a hydrogen-powered ferry, but it is not clear why the ferry should prove more reliable than the train, or cheaper.

San Francisco’s hydrogen-powered ferry, $30 million, 15 knots top speed, 75 passengers, no cars. Long delayed.

In the US, the Biden administration has paid, so far, $30 million for a hydrogen ferry in San Francisco. It’s two years behind schedule and over cost, taking only 75 passengers and no cars at 15 knots, 17mph. In the US, and likely in Germany, most of the hydrogen will be made from natural gas. A better solution, I think would be to power the ferris and trains by natural gas and to store the excess electricity in land-based batteries or as land-based hydrogen for land-based fuel cells.

Germany is committed to electric trains, though, and hydrogen provides a route to power these trains with excess electricity. German customers take the train, in part, because they like them, and in part because German politicians have banned short-hop planes on competing routes, and subsidized electric trains. Yet another option to balance times of excess solar and wind power would be to subsidize electric cars, or at least allow theirs owners to trade electricity: to buy electricity when it’s cheap and resell it to the grid when demand and prices are high.

Robert Buxbaum, June 8, 2024