Category Archives: Business

The Pope’s crusade against agricultural greed.

The Pope goes to long lengths to show how much he supports the poor, oppressed people of the world; he washes the feet of Muslim prisoners, he campaigns against Israeli occupation of Palestine, and scolds America, but not China they must reduce carbon output. Usually he picks the wrong villains, in my opinion. His latest effort is against the producers and distributors of food, the agribusinessmen. If only they would charge less, everyone would have more, or so he says.

On World Food Day, Pope Francis placed the blame on capitalism in the food market. Some examples of his speech and tweets follow: “The fight against hunger demands we overcome the cold logic of the market, which is greedily focused on mere economic profit and the reduction of food to a commodity, and strengthening the logic of solidarity.”

In the Pope’s view the cold logic of the market is the source of hunger. I think it is the source of his food and mine, and for the most part everyone’s.

“Thinking about these situations, in God’s name I want to ask The big food corporations to stop imposing monopolistic production and distribution structures that inflate prices and end up withholding bread from the hungry.”

The Pope blames high food prices on producers and distributors who are, in his words, “withholding bread from the hungry.”  Of course, all the bread the Pope eats comes from these producers and distributors. It is the same for the bread of all the Archbishops and virtually all the priests; it all comes from these agribusinessmen, who charge more than he would like. They are also the source of the church’s wine, and meat, and vegetables. Folks who do not grow food themselves, and who do not transport it, or process charge those who do these things as greedy, withholding monsters. That any of them have food is only because of these monsters; without them, the poor of the world would starve to death. If he thinks he can do better, he should try, perhaps giving up his time washing feet.

The Pope believes that big food corporations are causing starvation and withholding food from the hungry.

Free market pricing is how farmers know what to produce, where, and who to sell too. It’s also how customers know what to buy and keep, and what to throw away, or save for a special occasion. Without these clues, farmers would grow things people don’t want, and much of the good stuff would go to waste.

High prices for some foods is the indicator that causes agribusiness individuals (the so-called greedy) to see an unmet need. They then employ people in the manufacture and distribution of these foods reducing the employment in the production of other foods where the margins are smaller. These food-price signals are also the fuel for technological innovation — the innovation that has made food abundant and relatively affordable, especially in the capitalist west.

The west has lead in food innovation precisely because of the motivation of food profit. Monsanto invents and distributes seeds for fast-growing grains precisely because there is profit in it, and it is these seeds that reduces the price to the consumer. Colonel Sanders invented the high-pressure fryer because it allowed him to fry more chicken faster. The result is profits for KFC and lower prices for the consumers. It is only because of the so-called corporate greed that western consumers have so many options at such low prices that obesity is a big problem, and starvation is virtually unknown. In the US you can buy $1 hamburgers when the minimum wage is about $10/hour. That is, you can buy a hamburger with the income from 6 minutes of work. You can not do that in any country ruled by enlightened leaders where profit is banned.

Charity proliferates in a free market because many of the people have excess give it willingly targeted to help. They give to the Church, or to the poor directly, or in ways that help the poor indirectly. Such giving makes a bond between giver and recipient and cheers both. Almost immediately, the recipient of the charity enters the capitalist market to trade excess and unneeded items for items that are needed. Perhaps the recipient got too many cans of food, but no shoes, or no can-opener. The market allows a rectification at a fair exchange.

And as for the mandate to lecture world leaders on the evils of capitalism, there is none. Moses, in the desert offers to buy food and water at the market prices. On a similar note Jesus pointed out that financial authority rested with the Emperor, not with the religious leaders. In this vein, Pope Galasius I wrote to Emperor Anastasius in AD 494 that there were two systems: the sacred authority of the priests, and the royal power. In the west, the royal power over food is the marketplace, and it has shown itself to be smarter and more giving than the smartest, most charitable religious leaders.

Robert Buxbaum, November 29, 2021. Having complained about the pope I would like to say that Cardinal Tim Dolan, Archbishop of New York does a wonderful job. His main efforts are education and helping immigrants: needed work. And, as best I know, he has never criticized any productive business for charging too much.

Vaccines have not decreased the US COVID death rate

I’m not sure why this is, but a quick look at the death statistics shows that it is no lower today than it was a year ago. Vaccines seem to help the individual, but they don’t seem to do much for society as a whole.

Johns Hopkins data. COVID 19 death rate in the USA.

That the death rates are the same as last November is bad, especially since one major effect of COVID has been to wipe out nearly all our old folks, decreasing the lifespan of US men by 2-3 years. With a 70% vaccination rate (adults, 60% overall), and few old people, you ‘d expect our death rate this year would be lower than last.

Currently, at least, the trend-line looks positive, but that’s likely a mirage. It is common to add more deaths to the tally, retroactively a few weeks out as many deaths take weeks to report and more weeks to be counted as COVID. For what it’s worth, I’m vaccinated, two shots and a booster. I also take aspirin, and have gotten a pneumonia shot. I think it helps. What do I know?

Robert Buxbaum, November 18, 2021

Deadly incurable viruses abound: The plagues to come.

As we discuss the effectiveness of the various COIVD vaccines, and ask if we will need another booster in a year, this time for the delta variant, or epsilon, it’s worth noticing that none of these is that deadly, especially if you’ve had a previous version. There are far worse viruses out there, like Ebola-Zaire, for example. This virus kills 60-90% of the people infected, typically by causing the body’s connective tissue to dissolve. Now that’s a deadly virus; imagine an ebola pandemic.

We live surrounded by many really deadly viruses, most of them incurable. In general our protection from them is that they usually show a slow infection rate or a slow progress to death. Drug resistant leprosy is one of these. Here’s the beginnings of a list of deadly viruses we could worry about: Lassa, Rift Vally, Oropouche, Rocio Q Guanarito, VEE, Marburg, Herpes B, Monkey Pox, Dengue, Chikunguanya, Hantavirus, Machupo, Junin, Rabies-like Mokola, drug-resistant leprosy, Duvenhage, LeDantec, Kyasanur, Forest Brain virus, HIV-AIDs, Simliki, Crimean-Congo virus, Sindbis, O’nyongnyong, Sao Paulo, SARS, Ebola Sudan, Ebola Zaire, Ebola Reston, Mid-East Respiratory (MERS), Zika, Delta-COVID. (I got 2/3 of this list from a 1993 book called “The Hot Zone” about the first US outbreak of Ebola — Washington DC in 1989 — a good book, worth a read).

Ebola is a string-like virus with loops. It causes your body to dissolve and bleed out from every pore. The strings form crystals that are virtually immortal.

As an ilk, these viruses are far older than we are, older than the first cellular creatures, and far tougher. They are neither dead nor alive, and can last for years generally without air, water or food if the temperature is right. Though they do not move on their own, nor eat in any normal sense, they do reproduce, and they do so with a vengeance. They also manage to evolve by an ingenious sexual mechanism. In a sense, they are the immune system of the earth, protecting the earth from man or any other invasive life form. We humans have only survived the virus for 100,000 years or so. Long term, the viruses are likely to win.

Zika is a ball-shaped virus. Incurable, it causes encephala. Ball-viruses are not as immortal as string viruses. COVID is a ball virus with spikes, a crown virus.

Some viruses are string shaped; Marburg and Ebola are examples. Such viruses can crystalize and live virtually forever on dry surfaces. Other viruses are ball-shaped, COVID and Zika, for example. These are more easily attacked on surfaces, e.g. by iodine. They become inactive after just a few minutes in air– and are killed instantly by iodine, alcohol, bleach, or peroxide.

Most viruses enter by cuts and body fluids. This is the case with AIDS and herpes. Others, like measles, shingles, and Zika, enter by way of surfaces and the hands. Virus-laden droplets collect on surfaces and are brought to a new host when the surface is touched and hand-transported to the nose or eyes. A few viruses, like SARS, Ebola, and COVID-19 can enter the body by breathing too. I’ve collected some evidence in favor of Iodine as a surface wipe, a hand wipe and as mouthwash in this previous essay.

Dr. Robert E. Buxbaum, November 3, 2021. The US has three facilities where they deal with the most deadly, contagious viruses. One is in Washington DC; they had leak in 1989, a part of the ebola outbreak. China has only one such facility, in Wuhan, China. It’s one block from where the COVID-19 outbreak supposedly originated. Have a nice day.

COVID is 1/50 as deadly in China, Hong Kong, Taiwan, Korea…

I may be paranoid, but that doesn’t mean I’m crazy. COVID-19 shows a remarkably low death rate in Asia, particularly Eastern Asia, compared to the US or Europe or South America. As of this month, there have been 734,600 US deaths from COVID-19, representing 0.22% of all Americans. Another way of stating this is 2.2 deaths per thousand population. In one year, COVID has lowered the life expectancy of US men by 2.1 years; with the decline worst among hispanic men. The COVID death rate is very similar in Europe, and higher in South America (in Peru 0.62%), but hardly any deaths in East Asia. In China only 4,636 people, 0.003% of the population. That’s 1/700th the rate in the US, and almost all of these deaths are in western China. They no longer bother with social distancing.

The low death rate in East Asia. was noted by the BBC over a year ago. Based on today’s data from Worldometer, here, the low death rates continue throughout East Asia, as graphed at right. In Hong-Kong the death rate is 0.03 per thousand, or 1/70th the US rate. In Taiwan, 0.04 per thousand; in Singapore, 0.01 per thousand; in S. Korea 0.04 per thousand; Cambodia and Japan, 0.1 per thousand. The highest of these countries shows 1/20 the death rate of the US. This disease kills far fewer East Asians than Westerners. This difference shows up, for example in a drop in the lifespan of male Americans by 2.16 years. The lifespan of male Hispanics dropped more, by 4.58 years. In China, Japan, and Korea the lifespans have continued to increase.

Life expectancy for US males has dropped by 2.16 years. It’s dropped more for Hispanic and Black Americans. Data for women is similar but not as dramatic.

My suspicion is that this was a racially targeted bio-weapon. But perhaps the targeting of westerners reflects a cultural lifestyle difference. Mask use has been suggested, but I don’t think so. In many high mask countries the death rate is high, while in low mask Taiwan and Korea it’s low, only 0.04 COVID deaths per thousand. Even Sweden, with no masks reports only 1.4 per thousand deaths; that’s 2/3 the death rate of the US. Masks do not seem to explain the difference.

Another lifestyle difference is obesity; Americans are fat. Then again, Peru was hit far worse than we were, and Peruvians are thin. Meanwhile, in Hong Kong, folks are fat, but the death rate is small. Another cultural difference is medicine, but I don’t believe Sweden, Germany, and France have worse healthcare than Taiwan or Cambodia. Cambodia saw 1/20 the US COVID death rate.

My suspicion is that this disease targets by race because it was designed that way. If it isn’t a bio weapon, it certainly behaves like one. I may be paranoid here, but that’s the way it seems.

As a side issue, perhaps related, I note that China keeps pushing for the to close its manufacturing in the interest of CO2 abatement, while they keep building coal burning power plants to fill the manufacturing need that we abandon. I also notice that they hit us with tariffs while protesting our tariffs, that they steal our intellectual property, and that they are building islands in the sea between China and Japan. There is war-tension between our countries, and Western-targetting virus appears right outside of China’s top-security virus lab — their only level 4 lab — I’m guessing it’s not a total coincidence.

Robert Buxbaum, October 12, 2021

Exercise helps fight depression, lithium helps too.

With the sun setting earlier, and the threat of new COVID lockdowns, there is a real threat of a depression, seasonal and isolation. A partial remedy is exercise; it helps fight depression whether you take other measures not. An article published last month in the Journal of Affective Disorders reviewed 22 studies of the efficacy of exercise, particularly as an add-on to drugs and therapy. Almost every study showed that exercise helped, and in some studies it helped a lot. See table below. All of the authors are from the University of British Columbia. You can read the article here.

From “Efficacy of exercise combined with standard treatment for depression compared to standard treatment alone: A systematic review and meta-analysis of randomized controlled trials.” by JacquelineLee1 et al.In virtually every study, exercise helps fight depression.

For those who are willing to exercise, there are benefits aside from mental health. Even a daily walk around the block helps with bone strength, weight control, heart disease, plus the above mentioned improvement in mood. More exercise does more. If you bicycle without a helmet, you’re likely to live longer than if you drive.

For those who can’t stand exercise, or if exercise isn’t quite enough to send away the blues, you can try therapy, medication, and/or diet. There is some evidence that food that are high in lithium help fight depression. These food include nuts, beans, tomatoes, some mineral waters, e.g. from Lithia springs, GA. The does is about 1/100 the dose given as a bipolar treatment, but there is evidence that even such small doses help. Lithium was one of the seven ingredients in seven up — it was the one that was supposed to cheer you up. See some research here.

Robert Buxbaum, October 7, 2021.

Lithium Battery prices fell 98%, solar prices fell more.

Most people have heard of Moor’s law, the law that computing power keeps doubling every two years, with the price remaining the same, but the same law is observed with other tech products, notably lithium ion batteries and solar cells.

By my calculation the price of lithium ion batteries has fallen 98% so far, at a rate of 12.5% per year. That’s a remarkable drop given that the chemistry has hardly changed. The size has dropped too; it’s nowhere near as much as the price but enough to make batteries a reasonable choice for powering automobiles, scooters, and power tools. Batteries still lack the range and fast charging for some applications, but even there the low cost means that hybrids become attractive, combining for cars and truck, the long range of gas with a reduced cost per mile. The rate of decrease suggests that prices will be below $100 per kWh by 2025. That’s an $8000 cost for a battery powered car with 300 miles of range.

As for where the electricity comes from, the price of electricity is going up and becoming less reliable. In part that’s because of regulations on coal and nuclear power and the inherent problems with large-scale wind and solar. But decentralized solar may turn out to be a winner. Solar prices have fallen 99.6% since 1976. Even though the rate of decrease is slower, about an 8% drop in price per year, there is a sense that solar power has entered the mainstream. Combined with cheap, home batteries, it may soon make sense to power your home and car by solar cells on the house; there isn’t enough area on a car to quite power it.

Robert Buxbaum, September 27, 2021

Automobile power 2021: Batteries vs gasoline and hydrogen

It’s been a while since I did an assessment of hydrogen and batteries for automobile propulsion, and while some basics have not changed, the price and durability of batteries has improved, the price of gasoline has doubled, and the first commercial fuel cell cars have appeared in the USA. The net result (see details below) is that I find the cost of ownership for a gasoline and a battery car is now about the same, depending on usage and location, and that hydrogen, while still more pricey, is close to being a practical option.

EV Chargers. They look so much cooler than gasoline hoses, and the price per mile is about the same.

Lithium battery costs are now about $150/kwh. That’s $10,000 for a 70 kWh battery. That’s about 1/5 the price of a Tesla Model 3. The reliability that Tesla claims is 200,000 miles or more, but that’s with slow charging. For mostly fast charging, Car and Driver’s expectation is 120,000 miles. That’s just about the average life-span of a car these days.

The cost of the battery and possible replacement adds to the cost of the vehicle, but electricity is far cheaper than gasoline, per mile. The price of gasoline has doubled to, currently, $3.50 per gallon. A typical car will get about 24 mpg, and that means a current operation cost of 14.6¢/mile. That’s about $1,460/year for someone who drives 10,000 miles per year. I’ll add about $150 for oil and filter changes, and figure that operating a gas-powered car engine costs about $1,610 per year.

If you charge at home, your electricity costs, on average, 14¢/kWh. This is a bargain compared to gasoline since electricity is made from coal and nuclear, mostly, and is subsidized while gasoline is taxed. At level 2 charging stations, where most people charge, electricity costs about 50¢/kWh. This is three times the cost of home electricity, but it still translates to only about $32 for a fill-up that take 3 hours. According to “Inside EVs”, in moderate temperatures, a Tesla Model 3 uses 14.59 kWh/100 km with range-efficient driving. This translates to 11.7¢ per mile, or $1170/year, assuming 10,000 miles of moderate temperature driving. If you live in moderate climates: Californian, Texas or Florida, an electric car is cheaper to operate than a gasoline car. In cold weather gasoline power still makes sense since a battery-electric car uses battery power for heat, while a gasoline powered car uses waste heat from the engine.

Battery cars are still somewhat of more expensive than the equivalent gasoline car, but not that much. In a sense you can add $400/year for the extra cost of the Tesla above, but that just raises the effective operating cost to about $1,570/year, about the same as for the gasoline car. On the other hand, many folks drive less than 50 miles per day and can charge at home each night. This saves most of the electric cost. In sum, I find that EVs have hit a tipping point, and Tesla lead the way.

Now to consider hydrogen. When most people think hydrogen, they think H2 fuel, and a PEM fuel cell car. The problem here is that hydrogen is expensive, and PEM FCs aren’t particularly efficient. Hydrogen costs about $10/kg at a typical fueling station and, with PEM, that 1 kg of hydrogen takes you only about 25 miles. The net result is that the combination hydrogen + PEM results in a driving cost of about 40¢/mile, or about three times the price of gasoline. But Toyota has proposed two better options. The fist is a PEM hybrid, the hydrogen Prius. It’s for the commuter who drives less than about 40 miles per day. It has a 10kWh battery, far cheaper than the Tesla above, but enough for the daily commute. He or she would use charge at home at night, and use hydrogen fuel only when going on longer trips. If there are few long trips, you come out way ahead.

Toyota 2021 Mirai, hydrogen powered vehicle

Toyota also claims to have a hydrogen powered Corolla or debut in 2023. This car will have a standard engine, and I would expect (hope) will drive also — preferably — on hythane, a mix of hydrogen and methane. Hythane is much cheaper per volume, and more energy dense, see my analysis. While Toyota has not said that their Corolla would run on hythane, it is supposed to have an internal combustion engine, and that suggests that hythane will work in it.

A more advanced option for Toyota or any other car/truck manufacturer would be to design to use solid oxide fuel cells, SOFCs, either with hydrogen or hythane. SOFCs are significantly more efficient than PEM, and they are capable of burning hythane, and to some extent natural gas too. Hythane is not particularly available, but it could be. Any station that currently sells natural gas could sell hythane. As for delivery to the station, natural gas lines already exist underground, and the station would just blend in hydrogen, produced at the station by electrolysis, or delivered. Hythane can also be made locally from sewer gas methane, and wind-power hydrogen. Yet another SOFC option is to start with natural gas and convert some of the natural gas to hydrogen on-board using left-over heat from the SOFC. I’ve a patent for this process.

Speaking of supply network, I should mention the brown outs we’ve been having in Detroit. Electric cars are part of the stress to the electric grid, but I believe that, with intelligent charging (and discharging) the concern is more than manageable. The driver who goes 10,000 miles per year only adds about 2,350 kWh/year of extra electric demand. This is a small fraction of the demand of a typical home, 12,154 kWh/year.It’s manageable. Then again, hythane adds no demand to the electric grid and the charge time is quicker — virtually instantaneous.

Robert Buxbaum, September 3, 2021

A useful chart, added September 20, 2021. Battery prices are likely to keep falling.

Branson’s virgin spaceplane in context.

Virgin Galactic Unity 22, landing.

Branson’s Virgin Space Ship (VSS) Unity was cheered as a revolutionary milestone today (July 10) after taking Branson, three friends and two pilots on a three minute ride to the edge of space, an altitude of 53.5 miles or 283,000 feet. I’d like to put that achievement into contest, both with previous space planes, like the Concorde and X-15 (the 1960s space plane), and also in context with the offerings of Elon Musk’s Space-X and Bezos’s, Blue Horizon.

To start with, the VSS Unity launched from a sub-sonic mother ship, as the X-15 had before it. This saves a lot in fuel weight and safety equipment, but it makes scale up problematic. In this case, the mother-ship was named Eve. Unity launched from Eve at 46,000 feet, about 9 miles up, and at Mach 0.5; it took Eve nearly 90 minutes to get to altitude and position. It was only after separation, that Unity began a one minute, 3 G rocket burn that brought it to its top speed, Mach 3, at about 16 miles up. What followed was a 3 minute, unpowered glide to 53.5 miles and down. Everyone seems to have enjoyed the three minutes of weightlessness, and it should be remembered that there is a lot of difference between Mach 3 and orbital speed, Mach 31. Also there is a lot of difference between a sub-orbital and orbital.

Concorde SST landing in Farnborough.

By comparison, consider the Concorde SSTs that first flew in 1976. It reached about 2/3 the speed of Unity, Mach 2.1, but carried 120 commercial passengers. It took off from the ground and maintained this speed for 4500 miles, going from London to Houston in 4.5 hours. While the Concorde only reached an altitude of 60,000 feet, it is far more impressive going at Mach 2.1 for 4.5 hours than going at Mach 3 for three minutes. And there is a lot of difference between 120 passengers and 4. There is also the advantage of taking off from the ground. A three minute ride in a space plane should not require a 90 minute ascent on a mother ship.

X-15 landing, 1962.

Next consider the X-15 rocket plane of the 1960s. This was a test platform devoted to engine and maneuverability tests; it turns out that maneuverability is very difficult. The X-15 hit a maximum altitude of 354,200 ft, 67 miles, and a maximum speed of Mach 6.72, or 4520 mph. That’s significantly higher than Branson’s VSS, and double the maximum speed. As an aside, the X-15 project involved the development of a new nickel alloy that I use today, Inconel X-750. I use this as a support for my hydrogen membranes. If any new materials were developed for VSS, none were mentioned.

The Air Force’s X-37B Orbital Test Vehicle at Kennedy Space Center, May 7, 2017.

Continuing with the history of NASA’s X-program, we move to the X-41, a air-breathing scramjet of the 1980s and 90s. It reached 95,000 feet, and a maximum speed of Mach 9.64. That’s about three times as fast as Virgin’s VSS. The current X-plane is called X-37B, it is a rocket-plane like the X-15 and VSS, but faster and maneuverable at high speed and altitude. It’s the heart of Trump’s new, US Space force. In several tests over the past 5 years, it has hit orbital speed, 17,426 mph, Mach 31, and orbital altitudes, about 100 miles, after being launched by a Atlas V or a Falcon 9 booster. The details are classified. Apparently it has maneuverability. While the X-37B is unmanned, a larger, manned version, is being built, the X-37C. It is supposed to carry as many as six.

Reaching orbital speed or Mach 31 implies roughly 100 times as much kinetic energy per mass as reaching the Mach 3.1 of Virgin’s VSS. In this sense, the space shuttle, and the current X-plane are 100 times more impressive than Virgin’s VSS. There is also a lot to be said for maneuverability and for a longer flight duration– more than a few minutes. Not that I require Branson to beat NASA’s current offerings, but I anyone claiming cutting edge genius and visionary status should at least beat NASA’s offerings of the 1960s, and the Concorde planes of 1976.

Bezos’s Blue Origin, and the New Shepard launcher.

And that bring’s us to the current batch of non-governmental, space cadets. Elon Musk stands out to me as a head above the rest, at least. Eight years ago, his Grasshopper rocket premiered the first practical, example of vertical take off and landing booster. Today, his Falcon 9 boosters send packages into earth orbit, and beyond, launching Israel’s moon project, as one example. That implies speeds of Mach 31 and higher, at least at the payload. It’s impressive, even compared to X-37, very impressive.

Bezos’ offering, the Blue Origin Shepherd, seems to me like a poor imitation of the SpaceX Falcon. Like Falcon, it’s a reusable, vertical takeoff and landing platform, that launches directly from earth, and like Falcon it carries a usable payload, but it only reaches speeds of Mach 3 and altitudes about 65 miles. Besides, the capsule lands by way of parachutes, not using wings like the space shuttle, or the X-37B, and there is no reusable booster like Falcon. Blue Origin started carrying payloads only in 2019, five yers after SpaceX. There is nothing here that’s cutting edge, IMHO, and I don’t imagine it will be cheaper either.

Branson has something that the other rocket men do not have, quite: a compelling look: personal marketing, a personal story, and a political slant that the press loves and I find hypocritical and hokey. The press, and our politicians, managed to present this flight as more than an energy wasting, joy ride for rich folks. Instead, this is accepted as Branson’s personal fight against climate change. Presented this way, it should qualify as a tax-dodge. I don’t see it getting folks to stop polluting and commit to small cars, but the press is impressed, or claims to be. The powers have committed themselves to this type of Tartuffe, and the press goes along. You’d think that, before giving Branson public adoration for his technology or environmentalism, he should have cutting technology and have been required to save energy, or pollute less. At least beat the specs of the X-15. Just my opinion.

Robert Buxbaum, July 12, 2021

Brown’s gas for small scale oxygen production.

Some years ago I wrote a largely negative review of Brown’s gas, but the COVID crisis in India makes me want to reconsider. Browns gas can provide a simple source of oxygen for those who are in need. First, an explanation, Browns gas is a two-to-one mix of hydrogen and oxygen; it’s what you get when you do electrolysis of water without any internal separator. Any source of DC electricity will do, e.g. the alternator of a car or a trickle charger of the sort folks buy for their car batteries, and almost any electrode will do too (I’d suggest stainless steel). You can generate pressure just by restricting flow from the electrolysis vessel, and it can be a reasonable source of small-scale oxygen or hydrogen. The reaction is:

H2O –> H2 + 1/2 O2.

The problem with Brown’s gas is that it is explosive, more explosive than hydrogen itself, so you have to handle it with care; avoid sparks until you separate the H2 from the O2. Even the unseparated mix has found some uses, e.g. as a welding gas, or for putting in cars to avoid misfires, increase milage, and decrease pollution. I think that methanol reforming is a better source of automotive hydrogen: hydrogen is a lot safer than this hydrogen-oxygen mix.

Browns gas to oxygen for those who need it.

The mix is a lot less dangerous if you separate the oxygen from the hydrogen with a membrane, as I show in the figure. at right. If you do this it’s a reasonable wy to make oxygen for patients who need oxygen. The electrolysis cell can be a sealed bottle with water and the electrodes; add a flow restriction as shown to create the hydrogen pressure that drives the separation. The power can be an automotive trickle charger. You can get this sort of membranes from REB Research, here and many other suppliers. REB provide consulting services if you like.

In a pinch, you don’t even need the membrane, by the way. You can rely on your lungs to make the separation. A warning, though, the mix is dangerous. Avoid all sparks. Also, don’t put salt into the water. You can can put in some baking soda or lye to speed the electrolysis, but If you put salt in, you’ll find you don’t make oxygen, but will instead make chlorine. And chlorine is deadly. If you’re not sure, smell the gas. If it smells acrid, don’t use it. This is the chlorine-forming reaction.

2NaCl + 2 H2O –> H2 + Cl2 + 2NaOH

Ideally you should vent the hydrogen stream out the window, but for short term, emergency use, the hydrogen can be vented into your home. Don’t do this if anyone smokes (not that anyone should smoke about someone on oxygen). This is a semi-patentable design, but I’m giving it away; not everything that can be patented should be.

Robert Buxbaum, May 13, 2021.

Are fewer people better?

Part of the push to help the oppressed and save the plant is push to decrease the birthrate both in the developed and undeveloped world. Putting of childbirth is supposed to lead to a more meaningful life, while academic excellence is considered meaningful. Child-raising is considered male oppression of women, while writing mediocre poetry is, we’re told elevating, it’s finding your voice. It’s the new mood, at least in the developed world.

In the undeveloped world, political activism and wealth accumulation are presented as more meaningful, and fewer children is presented as a responsible route to wealth and happiness (see Indian advertisement below). My sense is otherwise, that children bring happiness and long term wealth. My sense is that the best two ways to change the world for the better is to work on yourself and to raise good children. And these Idas are connected; children are little mirrors, sometimes showing hidden flaws, sometimes revealing enthusiasm and greatnesses.

This month’s cover article of National Geographic includes economic justifications for fewer children and ecological justifications. Apparently we’re making life difficult for the polar bears. The assumption is that the bears like it cold, and their opinion is more important than that of animals that like it warm, like most humans.

There is also an assumption that there will be more jobs and better food if we have fewer children, or that people will be happier. Who are the “we” who are better off. I personally would not trade a billion randomly selected lives to lower the earth’s temperature 1 degree, or for the supposed happiness benefit of 1 million empty-nest households.

Robert Buxbaum, April 18, 2021. I like people more than polar bears, sue me.