Reading Glenn Seaborg's book, Adventure in the Atomic Age: From Watts to Washington, one is immediately captivated by the genial tone, the humble perspective, and the nuance of the writer. When I picked up the book I knew nothing about Seaborg, save a little of his work in nuclear chemistry, but when I set it down I could not help but feel I knew Glenn T. Seaborg on a much more personal level.
The autobiography starts with his beginnings as the child of immigrant parents from Sweden. He was born and spent the first part of his life in Ishpeming, Michigan. It is interesting to read about such things as the time the newly minted Green Bay Packers came to town. They would play the Ishpeming team, only to lose 33-0. His father was a skilled machinist, and he writes of the trouble he had finding employment and how the Great Depression affected his family. Foreshadowing later chapters, he informs us of how the Great Depression convinced him that government could be a force to help people.
One learns of how Seaborg would earn money for college, and his love of physical exercise as a cure-all. He attended the University of California Los Angelos shortly after it was founded, and testifies in the book to the ability of public universities to level the playing field by providing students like him with opportunities he would not have had otherwise.
He talks about walking into the President's office to ask for a graduate program to be instituted. Even today it would be unheard of for an undergraduate student to get a chance to talk to the people who ran the university. He would later find himself under the tutelage of one G.N. Lewis. Yes, that G.N. Lewis, the one that created the Lewis dot-diagram. He mentions how Lewis should have won the Nobel Prize, and likely would have if he had not alienated so many scientists with his take-no-prisoners attitude during colloquium.
It is interesting to note that he so often describes people in favorable terms whenever he found occasion to do so. He talks as fondly of the presidents during his tenure as AEC chairman, as they gave him cause to. He is the only person I have ever heard of to punch Reagan in the stomach and get away with it (though you'll have to read the book for that little story). Yet with all of the deserved praise he heaps on others, and even the acknowledgment of his own achievements, he remains rather modest. He talks about rubbing shoulders and butting heads with politicians as though these things were ordeals that he struggled with, yet we see from the results he achieved that he was an adept politician and diplomat himself.
He learned a great deal from watching people do their jobs successfully, and put these lessons to use in his own life. It is an inspirational work for it teaches you about the importance of working with people rather than against them. Even after other scientists shunned Edward Teller for his damaging testimony against J. Robert Oppenheimer during the Red Scare, Seaborg did not. Despite the fact that Seaborg recognized the manner in which Teller's vociferous anti-communism poisoned his thinking, he would do his best to work with him. Indeed, consensus building was his strong suit. While working for the AEC, even when he had the majority of commissioners on his side, he would work with the minority and negotiate until they could issue a unanimous opinion.
In the book, which was published in 2001, three years after his death in February in 1999, he takes on the role of prophet. He emphasizes the damaging effects of our dependence on fossil fuels, environmentally, politically, and pragmatically. He argues for the advent of safe and clean nuclear power with the frustrated patience of someone who knows he's being reasonable, if only people would listen. It is one thing to read a book where the author holds opinions similar to your own and to walk away agreeing with him or her. While not diametrically opposed to what Seaborg believed in, I did walk away with some of my misconceptions changed. While I've always been for nuclear power, my understanding of the risks involved with nuclear power was somewhat mistaken as I see now. I also understand the importance of a level of civility in public discourse, where before reading the book I had some very different ideas about it.
Seaborg was a true scientist, doing his best to make sure he remained productive after winning the Nobel Prize for his discovery of plutonium with Edwin McMillan (though Enrico Fermi and his team* was given premature credit for the discovery.) In many respects his creation of new elements made Seaborg into a 20th century alchemist, capable of transmuting one element into another. Yet when he was asked to head the AEC, he felt a duty to accept the position, so he did, and so it was for every position he held as something other than a scientist doing basic research.
Yet, he was also a teacher, and you get the sense that it was just as important to him as anything else. He wrote about sitting down to do all of the problems in the General Chemistry textbook before teaching the class after an extended period away from the academic world. When his secretary peeked in on him, his only comment was on how hard the questions were. This is made me smile. A lot of the book made me smile, and the last part of Glenn Seaborg's own writing, before it gives way to his son's epilogue, was A Letter To A Young Scientist. Being the person to whom the letter was addressed, I closed the book and waited until I could find more peaceful surroundings. When I finally got a chance to read it in peace, I appreciated the letter. It appropriately addressed my own specific fears and concerns, allaying them and encouraging me, and for that I am grateful.
*Added in light of a comment to this post.
Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts
Tuesday, September 9, 2008
Saturday, August 30, 2008
Hydrogen Hoaxing
What else can we expect? Gas prices go up, people need to fill their tanks, a legitimate need arises, and so in come the people to try and fill that need. We see bicycle stores and public transport benefit from a world with higher gas prices. Of course, in such times it is sadly predictable that others would try to make a fast buck off of people's ignorance. This is where a website called Water4Petrol comes in.
Now hydrogen can be used as a fuel and, since it combines with oxygen to form water vapor under normal conditions, an exceptionally clean fuel at that. It's not the idea that hydrogen can be used as a fuel that I find appalling. Right now considerable investment is going into research to find easy and cheap ways to produce hydrogen, and while I'm not optimistic about the prospects so far, I wish them luck.
Now any chemist, scientist, engineer, or well-informed layperson should be able to look at the site and quickly understand why it's a not a plausible method of saving money on gas. So for the benefit of the completely uninitiated, I'll try to keep this on a very basic level. To summarize what the website purports:
1. Water is electrolyzed in what can best be described as a jar, but let's give these people the benefit of a doubt and call it a magic jar. To electrolyze something means to break it up using electricity. In the case of water, this means breaking it up into hydrogen and oxygen. When hydrogen bonds to oxygen to make water, a certain amount of energy is released in forming the bond. When the bond is broken, therefore, it stands to reason that the same amount of energy must be used to separate the elements. Keep that in mind for later. The electricity in this case comes from the car's own battery or alternator. If you're quick, you'll see where this is going.
2. The mixed gas, remember that it's hydrogen and oxygen together, is then shunted into the engine airflow where it presumably ignites in the cylinders. This part is a little beyond my expertise, I only know very vaguely how an automobile engine works. So I will assume that a car can run on hydrogen in the first place, just for the sake of argument.
3. The combustion of hydrogen in the engine will reduce the amount of gasoline/diesel needed to run the engine, thus saving you money at the pump. To that end, I call bullshit.
You see, there are these things called the laws of thermodynamics. I'm not going to list and explain them. Instead I'm going to call on that rare thing called common sense, and get Socratic on your asses: Based on what you have observed of the world around you, does energy, whether it's mechanical (dropping a ball, using a gear, etc.) or chemical (burning something), come out of the nether? Basically, is it free? Can you call upon you chakras, Qi, God(s), or Barry Manilow to move your car in the morning?
"No! Of course not! Energy has to come from somewhere!" You exclaim, taking me aback (I had no idea you were so passionate). So where does the energy to break water down into hydrogen and oxygen comes from? According to the website, run by the dubiously named Ozzie Freedom, it comes from your battery. Where does the energy from your battery come from? If your battery goes dead because you left the headlights shining into your neighbor's bedroom to teach him a lesson about returning that lawnmower, you know you don't recharge it. You "jump" the battery, and leave your car running a little while. This is so the battery can use your gasoline to charge itself up using the alternator. So when you use battery power to make hydrogen, you're just using gasoline all over again.
If you hook the apparatus (read:magic jar) up to your alternator, the same reasoning applies. The alternator is a moving part that generates electricity, and what makes it move is (tah-dah!) gasoline.
So how do we know that the hydrogen isn't somehow miraculously better than gasoline? The answer lies in something I said earlier, when you break a bond, it generates the same amount of energy to reform that same bond. So you can only get the same amount of energy you used to separate water in the first place. It is impossible to benefit from this system. In fact, it would seem from the prices Ozzie charges for a magic jar (240 South African Rand=31.34 US Dollars), the only person that stands to benefit financially is one Ozzie Freedom.
Now hydrogen can be used as a fuel and, since it combines with oxygen to form water vapor under normal conditions, an exceptionally clean fuel at that. It's not the idea that hydrogen can be used as a fuel that I find appalling. Right now considerable investment is going into research to find easy and cheap ways to produce hydrogen, and while I'm not optimistic about the prospects so far, I wish them luck.
Now any chemist, scientist, engineer, or well-informed layperson should be able to look at the site and quickly understand why it's a not a plausible method of saving money on gas. So for the benefit of the completely uninitiated, I'll try to keep this on a very basic level. To summarize what the website purports:
1. Water is electrolyzed in what can best be described as a jar, but let's give these people the benefit of a doubt and call it a magic jar. To electrolyze something means to break it up using electricity. In the case of water, this means breaking it up into hydrogen and oxygen. When hydrogen bonds to oxygen to make water, a certain amount of energy is released in forming the bond. When the bond is broken, therefore, it stands to reason that the same amount of energy must be used to separate the elements. Keep that in mind for later. The electricity in this case comes from the car's own battery or alternator. If you're quick, you'll see where this is going.
2. The mixed gas, remember that it's hydrogen and oxygen together, is then shunted into the engine airflow where it presumably ignites in the cylinders. This part is a little beyond my expertise, I only know very vaguely how an automobile engine works. So I will assume that a car can run on hydrogen in the first place, just for the sake of argument.
3. The combustion of hydrogen in the engine will reduce the amount of gasoline/diesel needed to run the engine, thus saving you money at the pump. To that end, I call bullshit.
You see, there are these things called the laws of thermodynamics. I'm not going to list and explain them. Instead I'm going to call on that rare thing called common sense, and get Socratic on your asses: Based on what you have observed of the world around you, does energy, whether it's mechanical (dropping a ball, using a gear, etc.) or chemical (burning something), come out of the nether? Basically, is it free? Can you call upon you chakras, Qi, God(s), or Barry Manilow to move your car in the morning?
"No! Of course not! Energy has to come from somewhere!" You exclaim, taking me aback (I had no idea you were so passionate). So where does the energy to break water down into hydrogen and oxygen comes from? According to the website, run by the dubiously named Ozzie Freedom, it comes from your battery. Where does the energy from your battery come from? If your battery goes dead because you left the headlights shining into your neighbor's bedroom to teach him a lesson about returning that lawnmower, you know you don't recharge it. You "jump" the battery, and leave your car running a little while. This is so the battery can use your gasoline to charge itself up using the alternator. So when you use battery power to make hydrogen, you're just using gasoline all over again.
If you hook the apparatus (read:magic jar) up to your alternator, the same reasoning applies. The alternator is a moving part that generates electricity, and what makes it move is (tah-dah!) gasoline.
So how do we know that the hydrogen isn't somehow miraculously better than gasoline? The answer lies in something I said earlier, when you break a bond, it generates the same amount of energy to reform that same bond. So you can only get the same amount of energy you used to separate water in the first place. It is impossible to benefit from this system. In fact, it would seem from the prices Ozzie charges for a magic jar (240 South African Rand=31.34 US Dollars), the only person that stands to benefit financially is one Ozzie Freedom.
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