Metals and nonmetals

Hydrogen is both a metal an a non-metal. It says so on the specially produced coffee cups produced by my company (and sold by my company) but not on any other periodic table i’ve seen. That’s a shame for at least two reason. First, on a physiochemical level, while hydrogen is a metal in the sense that it combines with non-metals like chlorine and oxygen to form HCl and H2O, it’s not a metal in how it looks (not very shiny, malleable, etc.). Hydrogen acts like a chemical non-metal in the sense that it reacts with most metals to form metal hydrides like NaH CaH2 and YH3 (my company sells metal hydride getters, and metal membranes that use this property), and it also looks like a non-metal; it’s a gas like non-metallic chlorine, fluorine, and oxygen.

REB Research, Periodic table coffee cup

REB Research, Periodic table coffee cup

Most middle schoolers and high schoolers learn to differentiate metals and nonmetals by where they sit on the periodic tables they are given, and by general appearance and feel, that is by entirely non-scientific methods. Most of the elements on the left side of their periodic tables are shiny and conduct electricity reasonably well, so students come to believe that these are fundamental properties of metals without noting that boron and iodine (on the right side) are both shiny and conduct electricity, while hydrogen (presumably the first metal) does not. Students note that many metals are ductile without being told that calcium and chromium are brittle, while boron and tin (non-metals) are ductile. And what’s with the jagged dividing line: some borderline cases, like aluminum, look awfully metallic by normal standards.

The actual distinction, and the basis for the line, has nothing to do with the descriptions taught in middle school, but everything to do with water. When an element is oxidized to its most common oxide and dissolved in water the solution will be either acidic or basic. This is the basis of the key distinction: we call something a metal if the metal oxide solution is basic. We call something a non-metal if the oxide solution is an acid. To make sulfuric acid or nitric acid: you dissolve the oxides of sulfur or nitrogen respectively, in water. That’s why nitrogen and sulfur are nonmetals. Similarly, since you make boric acid by dissolving boron oxide in water boron is a non-metal. Calcium is a metal because calcium oxide is lime, a strong base. Aluminum and antimony are near borderline cases, because their oxides are nearly neutral.

And now we return to hydrogen and my cup. hydrogen is the only element listed as both a metal and a non-metal because hydrogen oxide is water. It is entirely neutral. When water dissolves in water the pH is 7; by definition, hydrogen is the only real borderline case. It is not generally shown that way, but it is shown as a metal and a non metal is on a cup produced by my company.

Zen Buddhist Joke

How many Zen Buddhists does it take to screw in a lightbulb?

Four: One to screw in the bulb;

One to not screw in the bulb;

One to both screw in the bulb and not screw in the bulb.

And one to neither screw in the bulb, nor not screw in the bulb.

Is funny because Buddhism aims at enlightenment — something that occurs by the simultaneous destruction and non-destruction of the darkness. Ah you got it: I hear one hand clapping.

Chernobyl radiation appears to cure cancer

In a recent post about nuclear power, I mentioned that the health risks of nuclear power are low compared to the main alternatives: coal and natural gas. Even with scrubbing, the fumes from coal burning power plants are deadly once the cumulative effect on health over 1000 square miles is considered. And natural gas plants and pipes have fairly common explosions.

With this post I’d like to discuss a statistical fluke (or observation), that even with the worst type of nuclear accident, the broad area increased cancer incidence is generally too small to measure. The worst nuclear disaster we are ever likely to encounter was the explosion at Chernobyl. It occurred 27 years ago during a test of the safety shutdown system and sent a massive plume of radioactive core into the atmosphere. If any accident should increase the cancer rate of those around it, this should. Still, by fluke or not, the rate of thyroid cancer is higher in the US than in Belarus, close to the Chernobyl plant in the prime path of the wind. Thyroid cancer is likely the most excited cancer, enhanced by radio-iodine, and Chernobyl had the largest radio-iodine release to date. Thus, it’s easy to wonder why the rates of Thyroid cancer seem to suggest that the radiation cures cancer rather than causes it.

Thyroid Cancer Rates for Belarus and US; the effect of Chernobyl is less-than clear.

Thyroid Cancer Rates for Belarus and US; the effect of Chernobyl is less-than clear.

The chart above raises more questions than it answers. Note that the rate of thyroid cancer has doubled over the past few years, both in the US and in Belarus. Also note that the rate of cancer is 2 1/2 times as high in Pennsylvania as in Arkansas. One thought is test bias: perhaps we are  better at spotting cancer in the US than in Belarus, and perhaps better at spotting it in Pennsylvania than elsewhere. Perhaps. Another thought is coal. Areas that use a lot of coal tend to become sicker; Europe keeps getting sicker from its non-nuclear energy sources, Perhaps Pennsylvania (a coal state) uses more coal that Belarus (maybe).

Fukushima was a much less damaging accident, and much more recent. So far there has been no observed difference in cancer rate. As the reference below says: “there is no statistical evidence of a difference in thyroid cancer caused by the disaster.” This is not to say that explosions are OK. My company, REB Research, makes are high pressure, low temperature hydrogen-extracting membranes used to reduce the likelihood of hydrogen explosions in nuclear reactors; so far all the explosions have been hydrogen explosions.

Sources: for Belarus: Cancer consequences of the Chernobyl accident: 20 years on. For the US: GEOGRAPHIC VARIATION IN U.S. THYROID CANCER INCIDENCE, AND A CLUSTER NEAR NUCLEAR REACTORS IN NEW JERSEY, NEW YORK, AND PENNSYLVANIA.

R. E. Buxbaum, April 19, 2013; Here are some further, updated thoughts: radiation hormesis (and other hormesis)

Detroit: maximum punishment

Some moths ago, I argued that getting rid of its extra-high minimum wage was perhaps the single best thing that Detroit could do to improve its bankrupt finances and to provide jobs for its youth. I argued that this living wage of $11 or $14/hr, depending on whether healthcare was provided, was too much for the city to pay for it’s minimal skill workers. I also argued that a lower minimum wage would help the city finances, and would allow the unskilled of Detroit to find jobs: it would provide the first rung of a ladder. Well, sort-of good news: Detroit’s living wage has been declared unenforceable by the Michigan Supreme court.

Unenforceable does not mean that wages will lower immediately: anyone working for the city will keep their high salary job, so the finances of the city will remain strained. Also, private companies can not lower anyone’s contracted wages. The only difference is that workers on non-city jobs who agree to be paid $7.50 to $14/hr, can no longer sue to recover additional dollars to meet Detroit’s “living wage.” Bit by bit I expect that more low-skilled workers will be hired, and that their wages will stabilize downward to a free-market value.

The next big things that are needed are reduced crime and increased population who are employed in businesses other than selling drugs or themselves. One way to reduce crime, I think is to have less-stiff minimum penalties for non-violent crimes like drug possession and driving with a suspended license. Currently the penalty for possession runs to 15-20 years. No one who spends that much time in prison will fit back into society. Let’s do them and ourselves a favor by reducing minimum sentences so that the normal sentence is only 1-5 years (ideally with < 1 oz marijuana possession punished by a fine).

Another horror is the penalty for driving with a suspended license. It’s $3000 for a start (a reasonable amount, I think), but then the state adds a $4000 per year penalty for the next 3 years: a total of $15,000. That’s too much for a minimum-wage earner to pay, but the minimum wage earner needs a car to get to work. So he/she can’t work, or he/she drives without a license or insurance. Is this what we want? Lets give a second chance and lower the penalty to produce more working, law-abiding citizens. There is nothing wrong with Detroit that could not be fixed by 200,000 more, law-abiding, employed Detroiters.

R.E. Buxbaum owns REB Research, a maker of hydrogen purifiers and hydrogen generators. We used to be located in Detroit, but are now in Oakland county, 1/2 mile north of the Detroit border.

Link

Some 2-3 years ago I did an interview where I stood inside one of our hydrogen generator shacks (with the generator running) and poked a balloon filled with hydrogen with a lit cigar — twice. No fire, no explosion, either time. It’s not a super hit, but it’s gotten over 5000 views so far. Here it is

New hydrogen generator from REB Research

Here’s the new, latest version of our Me150 hydrogen generator with our wonder-secretary, Libby, shown for scale. It’s smaller and prettier than the previous version shown at left (previous version of Me150, not of secretary). Hydrogen output is 99.9999% pure, 9.5 kg/day, 75 slpm, 150 scfh H2; it generates hydrogen from methanol reforming in a membrane reactor. Pricing is $150,000. Uses about 7 gal of methanol-water ($6 worth) per kg of H2 (380 ft3). Can be used to fill weather balloons, cool electric dynamos, or provide hydrogen fuel for 2-10 fuel cell cars.

New REB Research hydrogen generator 150 scfh of 99.9999% H2 from methanol reforming

New REB Research hydrogen generator 150 scfh of 99.9999% pure H2 from methanol-water reforming against metal membranes.

Dr. Robert E. Buxbaum

Nuclear Power: the elephant of clean energy

As someone who heads a hydrogen energy company, REB Research, I regularly have to tip toe about nuclear power, a rather large elephant among the clean energy options. While hydrogen energy looks better than battery energy in terms of cost and energy density, neither are really energy sources; they are ways to transport energy or store it. Among non-fossil sources (sources where you don’t pollute the air massively) there is solar and wind: basically non-reliable, low density, high cost and quite polluting when you include the damage done making the devices.

Compared to these, I’m happy to report that the methanol used to make hydrogen in our membrane reactors can come from trees (anti-polluting), even tree farming isn’t all that energy dense. And then there’s uranium: plentiful, cheap and incredibly energy dense. I try to ignore how energy dense uranium is, but the cartoon below shows how hard that is to do sometimes. Nuclear power is reliable too, and energy dense; a small plant will produce between 500 and 1000 MW of power; your home uses perhaps 2 kW. You need logarithmic graph paper just to compare nuclear power to most anything else (including hydrogen):

log_scale

A tiny amount of uranium-oxide, the size of a pencil will provide as much power as hundreds of train cars full of coal. After transportation, the coal sells for about $80/ton; the sells for about $25/lb: far cheaper than the train loads of coal (there are 100-110 tons of coal to a train-car load). What’s more, while essentially all of the coal in a train car ends up in the air after it’s burnt, the waste uranium generally does not go into the air we breathe. The coal fumes are toxic, containing carcinogens, carbon monoxide, mercury, vanadium and arsenic; they are often radioactive too. All this is avoided with nuclear power unless there is a bad accident, and bad accidents are far rarer with nuclear power than, for example, with natural gas. Since Germany started shutting nuclear plants and replacing them with coal, it appears they are making all of Europe sicker).

It is true that the cost to build a nuclear plant is higher than to build a coal or gas plant, but it does not have to be: it wasn’t that way in the early days of nuclear power, nor is this true of military reactors that power our (USA) submarines and major warships. Commercial nuclear reactors cost a lot largely because of the time-cost for neighborhood approval (and they don’t always get approval). Batteries used for battery power get no safety review generally though there were two battery explosions on the Dreamliner alone, and natural gas has been known to level towns. Nuclear reactors can blow up too, as Chernobyl showed (and to a lesser extent Fukushima), but almost any design is better than Chernobyl.

The biggest worry people have with nuclear, and the biggest objection it seems to me, is escaped radiation. In a future post, I plan to go into the reality of the risk in more detail, but the worry is far worse than the reality, or far worse than the reality of other dangers (we all die of something eventually). The predicted death rate from the three-mile island accident is basically nil; Fukushima has provided little health damage (not that it’s a big comfort). Further, bizarre as this seems the thyroid cancer rate in Belarus in the wind-path of the Chernobyl plant is actually slightly lower than in the US (7 per 100,000 in Belarus compared to over 9 per 100,000 in the USA). This is clearly a statistical fluke; it’s caused, I believe, by the tendency for Russians to die of other things before they can get thyroid cancer, but it suggests that the health risks of even the worst nuclear accidents are not as bad as you might think. (BTW, Our company makes hydrogen extractors that make accidents less likely)

The biggest real radiation worry (in my opinion) is where to put the waste. Ever since President Carter closed off the option of reprocessing used fuel for re-use there has been no way to permanently get rid of waste. Further, ever since President Obama closed the Yucca Mountain burial repository there have been no satisfactory place to put the radioactive waste. Having waste sitting around above ground all over the US is a really bad option because the stuff is quite toxic. Just as the energy content of nuclear fuel is higher than most fuels, the energy content of the waste is higher. Burying it deep below a mountain in an area were no-one is likely to live seems like a good solution: sort of like putting the uranium back where it came from. And reprocessing for re-use seems like an even better solution since this gets rid of the waste permanently.

I should mention that nuclear power-derived electricity is a wonderful way to generate electricity or hydrogen for clean transportation. Further, the heat of hot springs comes from nuclear power. The healing waters that people flock to for their health is laced with isotopes (and it’s still healthy). For now, though I’ll stay in the hydrogen generator business and will ignore the clean elephant in the room. Fortunately there’s hardly any elephant poop, only lots and lots of coal and solar poop.

 

Science is the Opposite of Religion

Some years ago, my daughter came back from religions school and asked for a definition of science. I told her that science was the opposite of religion. I didn’t mean to insult religion or science; the big bang for one thing, strongly suggests there is a God -creator, and quantum mechanics suggests (to me) that there is a God -maintainer, but religion deals with other things beyond a belief in God, and I meant to point out that every basic of how science looks at things finds its opposite in religion.

Science is based on reproducibility and lack of meaning: if you do the same experiment over and over, you’ll always get the same result as you did before and the same result as anyone else — when the results are measured to some good, statistical norm. The meaning for the observation? that’s a meaningless question. Religion is based on the centrality of drawing meaning, and the centrality of non-reproducible, one-time events: creation, the exodus from Egypt, the resurrection of Jesus, the birth of Zeus, etc. A religious believer is one who changes his or her life based on the lesson of these; to him, a non-believer is one who draws no meaning, or needs reproducible events.

Science also requires that anyone will get the same result if they do the same process. Thus, chemistry class results don’t depend on the age, sex, or election of the students. Any student who mixes the prescribed two chemicals and heats to a certain temperature is expected to get the same result. The same applies to measures of the size of the universe, or its angular momentum or age. In religion, it is fundamentally important what sex you are, how old you are, who your parents were, or what you are thinking at the time. If the right person says “hoc es corpus” over wine and wafers, they change; if not, they do not. If the right person opens the door to heaven, or closes it, it matters in religion.

A main aspect of all religion is prayer; the idea that what you are thinking or saying changes things on high and here below. In science, we only consider experiments where the words said over the experiment have no effect. Another aspect of religion is tchuvah (regret, repentance); the idea is that thoughts can change the effect of actions, at least retroactively. Science tends to ignore repentance, because they lack the ability to measure things that work backwards in time, and because the scientific instruments we have currently do not take measurements on the soul to see if the repentance had any effect. Basically, the science-universe is only populated with those things which can be measured or reproducibly affected, and that pretty much excludes the soul. That the soul does not exist in the science universe doesn’t mean it doesn’t exist.

Another main aspect of religion is morality: you’re supposed to do the right thing. Morality varies from one religion to another, and you may think the other fellow’s religion has a warped morality, but at least there is one in all religions. In science, for better or worse, there is no apparent morality, either to man or to the universe. Based on science, the universe will end, either by a bang or a whimper, and in that void of end it would seem that killing a mouse is about as important as killing a person. No religion I know of sees the universe ending in either cold or hot death; as a result. Consistent with this, they all see murder is a sin against God. This difference is a big plus for religion, IMHO. That man sees murder as a true evil is either a sign that religion is true, or that it isn’t depending on the value you put on life. Another example of the moral divide: Scientists, especially academics, tend to be elitists. Their morality, such as it is, values great minds and great projects over the humble and stupid. Classical religion sees the opposite; it promoting the elevation of the poor, weak, and humble. There is no fundamental way to tell which one is right, and I tend to think that both are right in their own, mirror-image universes.

It is now worthwhile to consider what each universe sees as wisdom. An Explanation in the universe of science has everything to do with utility and not any internal sense of having understood, as such. I understand something only to the extent I predict that thing or can do something based on the knowledge. in religion, the motivation for all activity is always just understanding — typically of God on the bone-deep level. This difference shows up very clearly in dealing with quantum mechanics. To a scientist, the quantum world is fundamentally a door from religion because it is basically non-understandable but very useful. Religion totally ignores quantum mechanics for the same reason: it’s non-understandable, but very precise and useful. Anything you can’t understand is meaningless to them (literally), and useful is mostly defined in terms of building the particular religion; I think this is a mistake on many levels. I note that looking for disproof is the glory-work of all science development, but the devil’s work of every religion. A religious leader will grab on to statistical findings that suggest that his type of prayer cures people, but will always reject disproof, e.g. evidence that someone else’s prayers works better, or that his prayer does nothing at all. Each religion is thus in a war with the other, each trying to build belief, while not removing it. Science is the opposite. Religion starts with the answer and accepts any support it can; fundamental change is considered a bad thing in religion. The opposite is so with science; disproof is considered “progress,” and change is good.

These are not minor aspects of science and religion, by the way, but these are the fundamental basics of each, as best I can tell. History, politics, and psychology seem to be border-line areas, somewhere between science and religion. The differences do not reflect a lack in these fields, but just a recognition that each works according to its own logic and universe.

My hope in life is to combine science and religion to the extent possible, but find that supporting science in any form presents difficulties when I have to speak to others in the religious community, my daughter’s teachers among them. As an example of the problem that come up, my sense is that the big bang is a fine proof of creation and should be welcomed by all (most) religious people. I think its a sign that there is a creator when science says everything came from nothing, 14,000,000 years ago. Sorry to say, the religious leaders I’ve met reject the big bang, and claim you can’t believe in anything that happened 14,000,000,000 years ago. So long as science shows no evidence of a bearded observer at the center, they are not interested. Scientists, too have trouble with the bang, I find. It’s a one-time event that they can’t quite explain away (Steven Hawking keeps trying). The only sane approach I’ve found is to keep blogging, and otherwise leave each to its area. There seems to be little reason to expect communal agreement.

by Robert E. Buxbaum, Apr. 7, 2013. For some further thoughts, see here.