Showing posts sorted by relevance for query Tesla. Sort by date Show all posts
Showing posts sorted by relevance for query Tesla. Sort by date Show all posts

Saturday, April 7, 2018

My Inventions by Nikola Tesla

Nikola Tesla’s autobiography, collected under the title My Inventions, originally appeared as six articles in issues of Electrical Experimenter in 1919. It is a surprisingly thin book, especially in light of the several biographies that have been written about him, and the possibly greater volumes propounding the mythology of an almost demi-god genius.

To be fair, Tesla was a very creative and productive inventor. His AC motors, and the power systems that support them, enabled a new level of industrial power and automation. In many ways it was the technological foundation of the power grid we have today.

Tesla was ahead of his time and he realized it. He knew that the success of AC motors was greatly aided by coming about at the right time. Even so, it took many years from Tesla’s design to become a prototype and for that to become a commercial product with an infrastructure to support its use. At the time he wrote My Inventions, the value and practicality of his later inventions were still hard for many to see.

One of these later inventions was the radio. Tesla didn’t use that term “radio.”  It’s probably fair to say that he misunderstood the phenomena he was working with. Even so, he could produce radio transmissions and put them to practical use. As a demonstration, he built radio-controlled boats. It’s a stretch to say that Tesla envisioned smart phones, but he foresaw the possibility of using radio to transmit many kinds of data and signals, sometimes to devices “not bigger than a watch.”

“The pressure of occupation and the incessant stream of impressions pouring into our consciousness thru all the gateways of knowledge make modern existence hazardous in many ways,” Nikola Tesla, My Inventions

These articles were written at the end of World War I. Tesla reflected on the potentials of technology in peace and war. He imagined that wireless communication could shrink the world, leading to the kind of cultural exchange, common ground and commercial connections that would reinforce peace. He also imagined a rocket that could be guided to its target by radio control or internal mechanism; we could call it an intercontinental ballistic missile (ICBM).

Though visionary, he was not an infallible genius. He held to notions of physics that were not supported even by the science of his time. He had some wild ideas about psychology, biology and other fields, though some of these were no more far-out and off the mark that many that were popularly accepted by his contemporaries.

Tesla wrote very much from his own experience and perspective. Though he speaks of his upbringing in eastern Europe, his education and his career in Europe and the United States, he spends little time reflecting on the places, cultures and broader events he experience. You’ll learn more about Tesla’s peculiar ailments than about the life of youth in late-19th Century Croatia. Perhaps that wouldn’t have sold many issues of Electrical Experimenter.

If you’re interested in this book, you may also be interested in


Tesla, Nikola. My Inventions. 1919. New York: Barnes & Noble, 1995.

Monday, November 14, 2016

Empires of Light by Jill Jonnes

In the last decades of the 19th Century, inventors and industrialists battled for dominance in the emerging market of electric energy. One of the major fronts of this conflict was the choice of DC (direct current) or AC (alternating current). Jill Jonnes explains the history of this pioneering age of electricity in Empires of Light.

Thomas Edison was a major player in the early days of electrification. He is known for developing a commercially viable incandescent light. The innovation that made his light commercially successful was that he developed an entire system for generating a distributing electric energy to make those lights work.

Edison designed a DC system, and he was a major proponent of DC. A weakness of his system was distance. He could only supply power over a distance of about a mile. If large areas were to be lit, a power station would be needed every mile. This made it hard for Edison to market the system for community lighting, though he successfully sold many systems to manufacturers, commercial establishments and very wealthy homeowners. In spite of the limitations, he built a system to light a portion of Manhattan; his Pearl Street station began powering lights in 1882.

Though it was not obvious at first, it soon became clear that high voltage AC could be transmitted over very great distances. The invention of transformers in Europe provided a way for voltage to be stepped up for transmission and stepped back down to levels appropriate for lighting.

George Westinghouse adopted the AC system. The advantages of AC soon make Westinghouse Electric Company a major competitor with Edison. Even Edison’s own salesman began to ask for an AC system to sell, though he was reluctant to have any involvement with AC.

Edison believed that AC and the high voltage used for its transmission were dangerous. He also had business and personal reasons to oppose the introduction of rival systems. He attacked the use of AC. He even went so far as to aid an AC opponent who successfully lobbied to make electrocution by AC power the official means of executing condemned prisoners in the state of New York.

Westinghouse pressed on and won high profile contracts that proved the safety and efficiency of his AC equipment. Notably, he had the major lighting contract for the White City of Chicago’s World Columbian Exposition of 1893. He also won the contract to build generators for the hydropower plant at Niagara Falls. The promise of inexpensive power drew major manufacturers to the area before the plant starting operating in 1895. This surprised the investors, who had though the city of Buffalo would be the target market.

Though transformers made AC a very viable system, it had other technological hurdles, such as difficulty powering motors. Serbian-born inventor Nikola Tesla solved this problem with his induction motor. Like Edison, Tesla invented an entire system for supplying electrical power to his motors, which could also easily accommodate incandescent and arc lighting. The Niagara Falls system was based on Tesla’s patented technology.

Tesla went on to invent and explore the potential of other electrical devices, notably fluorescent lights and radios. Unfortunately, he was never able to create commercial products from these later works. He fell on hard times and was quite poor for many of the last years of his life. He died in 1943.

After the formation of General Electric, which largely pushed him out of the management of the company, Thomas Edison moved on to other things. His later ventures were of mixed success, but his work on the phonograph and improvements to motion picture helped to launch the American entertainment industry. Edison passed away in 1931, semi-retired in Florida.

Westinghouse continued to grow his electrical empire. After the Panic of 1907, in which a banking crisis shook the economy, investors forced him out of the management of Westinghouse Electric. He had four other companies to run. He didn’t care for the way Wall Street did business so he got involved in Progressive politics. He died in 1914.

Jonnes includes a chapter that is a very good, brief introduction to the history of electrical science. She describes the discoveries of William Gilbert, Stephen Gray, Andreas Cuneus, Benjamin Franklin, Alessandro Volta, Sir Humphrey Davy, Hans Christian Oersted, André Marie Ampère, Zénobe-Théophie Gramme and Michael Faraday.

If you’re interested in this book, you may also be interested in


Jonnes, Jill. Empires of Light: Edison, Tesla, Westinghouse, and the Race to Electrify the World. New York: Random House, 2003.

Thursday, April 19, 2012

The Astounding, the Amazing, and the Unknown by Paul Malmont (234) & The Revenge of Kali-Ra by K. K. Beck (235)

Malmont, PaulThe Astounding, the Amazing, and the Unknown. New York: Simon & Schuster, 2011.

Beck, K. K.  The Revenge of Kali-Ra.

Paul Malmont clearly loves pulps. The Chinatown Cloud Peril is one of the most fun books I’ve ever read.  He revisits this territory in The Astounding, the Amazing and the Unknown.

Astounding places fictional versions of science fiction authors in a scientific mystery adventure some of them might have been glad to write.  Some of the characters are pulp authors who appeared in Peril (Robert Heinlein, L. Ron Hubbard, Walter Gibson, and Lester Dent, a fellow Missourian).  Others are authors of the era when the old pulps gave way to comics and sci-fi magazines (Isaac Asimov, L. Sprague de Camp, and editor John Campbell).

A group of science fiction writers, most of them scientist and engineers as well, are working for the Navy to turn crazy ideas into reality in a proto-DARPA.  They’re not producing a lot of results and their leader, former Naval officer Heinlein, is feeling the pressure.  They stumble upon the suggestion that inventor Nikola Tesla accidentally created a superweapon at Wardenclyffe, which is why the tower he built there came down.  Their search for answers leads them on a twisting trail from the underground rivers of New York to the heights of the General Electric hierarchy.  Red herrings about and these clever authors don’t catch on to the biggest one in the book.

The character development is interesting, too.  Heinlein is feeling left out of opportunities to make a real difference, but eventually gets an inkling that his stories can make a difference.  The seeds of Scientology are planted in Hubbard.  I think the strongest character development occurs in the fictional Asimov.  He goes through something like a conventional coming-of-age story.  He starts as a frightened youth, faces his fears and becomes a man.  In addition, is a loner struggling in his marriage who finds a way to bring his wife into partnership with him, having a passion for her that matched the passion he had for his work.  That is good stuff; it adds depth to a story that is mostly and-then-and-then suspense.

For the geeks (that includes me), there are appearances by fictional versions of many other people.  Authors include Nowell Page of The Spider, Hugh Cave, aka Justin Case, and Kurt Vonnegut as an Easter egg.  Actor Jimmy Stewart lends his skill as a pilot.  Mystic and rocket scientist Jack Parsons could spin off a weird tale of his own.  Even Manhattan Project physicists Robert Oppenheimer, Julian Schwinger, and Richard Feynman make an appearance.


While I’m writing about an homage to pulps, I’d like to mention The Revenge of Kali-Ra by K. K. Beck.  I wrote a review of it that got lost in a hard drive crash (even so, I named it one of the best books I read in 2010).  The story focuses on fictional pulp stories featuring the villainous vixen of the title, which may no longer be public domain and may be valuable because of a proposed movie base on them.  The scent of money is in the air, bad characters pick up the scent, decent people are caught up in the events, and mayhem ensues.  Kali-Ra isn’t as good as Astounding, but it’s a fun read.  Beck includes clips from ersatz Kali-Ra tales that are full of the type of florid language one might expect, even hope for, in pulp.


Paul Malmont also wrote The Chinatown Death Cloud Peril.

If you’re interested in this book, you may also be interested in
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Saturday, November 11, 2017

The Power Makers by Maury Klein

Maury Klein’s book The Power Makers is a history of power from the Thomas Newcomen’s steam engine to the foundations of America’s electric grid.

Unlike many historians who look at the history of electric power, Klein gives a lot of attention to steam. We haven’t had steam engines directly powering industrial plants for decades, but steam turbines are still central to the production of most electricity in the United States. Even nuclear power plants use steam turbines to run their generators, they just use the heat from nuclear reactions rather than from the combustion of coal or natural gas to boil water and heat the steam to more than a thousand degrees.

Klein gives attention to many lesser known names in the history of power. He shows that Thomas Edison and George Westinghouse had rivals other than each other, such as Elihu Thomson. Nikola Tesla is well known as the genius who invented the AC motor, but other engineers helped develop his prototype into a commercial product, such as mathematically talented engineer Benjamin Lamme. Many talented inventors tried their hands at making electric lighting and power systems better. Only some of them had the vision, business sense, good partners and luck to turn their ideas into successful products. Few of them are widely known today.

Electrification had clear, direct effects in industry and transportation. Klein discusses how it’s influence reached into other sectors of the economy. Corporate management and finance changed to meet the needs of a growing new technology. For instance, Edison General Electric was able to take advantage of a new New Jersey law that allowed corporations to own businesses in other states. Electric companies grew, expanded and consolidated through numerous mergers and acquisitions. They had a demand for capital that nearly rivaled the railroads, another transformative technology that had shortly preceded electric power.

As the availability of electricity grew, certain industries were able to grow, too. Some chemical and metals manufacturing required abundant electric power to catalyze chemical reactions or generate the high temperatures of electric furnaces. Manufacturers flocked to Niagara after a lager hydroelectric power station started operation there in 1895.

Klein brings the many thread of his story of power together by reflections on three great fairs: the 1876 Centennial Exhibition in Philadelphia, the 1893 Columbian Exposition in Chicago and the 1939 New York World’s Fair. In the first, a giant steam engine that powered exhibits by means of belts and pulley was a significant attraction. By the second, electricity was on display, and the White City fairground was a model for testing AC power systems. By the 1939 fair, large power utilities of the type we would recognize today were becoming common. By then it was no big deal to flip a switch or pull a lever and get power so, unlike the previous to fairs, no dignitary undertook a show of doing it; the power was on from the start.

If you’re interested in this book, you may also be interested in


Klein, Maury. The Power Makers: Steam, Electricity, and the Men Who Invented Modern America. New York: Bloomsbury Press, 2008.

Saturday, September 29, 2018

450 Books Reviewed on Keenan's Book Reviews


I’ve posted reviews of 450 books on this blog. Here are links to the 50 most recent posts. Further down are links to more reviews.

First Time Reviews











Monday, November 14, 2016

Bottled Lightning by Seth Fletcher

Lithium is one of the most abundant elements in the universe. It is also in important part of the small, light, energy-packed rechargeable batteries that make our portable devices possible. It is also likely an important part of future batteries that might make longer-running electric cars and large-scale energy storage possible. Journalist Seth Fletcher describes the history of lithium as a battery material, especially in batteries for electric and hybrid cars, in Bottled Lightning.

Fletcher goes way back to the batteries made by Alessandro Volta in 1800 and, possibly more important, the first rechargeable batteries made by Gaston Planté in 1859 (a lead acid battery).

Fletcher treats this older history briefly. Like his readers, he is not as interested in batteries as in the uses of energy batteries enable. One of these uses is transportation. Many early cars were electric vehicles (EVs) that were powered by batteries. The technology of the time required large batters to hold relatively modest charges, which limited the range of the cars. Gasoline held much more energy than batteries, was widely available and cheap. For most motorists, gasoline beat batteries hands down.

Of course, priorities and technologies change. The energy crisis of the 1970s, along with a growing environmental movement, pressured automakers to develop electric car concepts. The technology of the time probably wasn’t up to the task for what most drivers wanted, and in combination with a return of low oil prices and automotive industry inertia the electric car development of that era came to an end.

Technology rolled on, as it does, and the development of cell phones—and the portable, networked computers they have become—put pressure on the battery industry to come up with lighter, longer lasting, rechargeable batteries. They found the answer in lithium-based batteries, especially the lithium-ion type that is common today.

When the automakers were again needing to look at alternatives to oil, mostly for fuel economy and emission control reasons, the new lithium-ion batteries changed the equation for the effectiveness and affordability of electric and hybrid cars. It is yet to become cheap, as attested by the price of the high-end electric cars made by Tesla. Even cars marketed for the mass market like the Chevy Volt is expensive without subsidies. (The Volt is technically a plug-in hybrid, but for the majority of drivers who travel less than forty miles a day it can be all-electric.)

There is a lot of potential for advance batteries becoming the industrial driver of the future. A growing electric car market will create a demand for a lot of batteries. The increased uses of renewable energy, and the eventual retirement of coal-burning and other fuel-consuming power plants, depends on energy storage to even out the waxing and waning of energy sources that vary with the cycles of the sun and the whims of the weather. The 2009 stimulus bill put a lot of money into new battery research and manufacturing, but Asia is still ahead of the U.S. in manufacturing capacity if not in innovation. If America wants a piece of this revolution (we’re going to buy a lot of these batteries, so maybe we should reap some of the benefits of making them), we’ll need to invest in these industries (as China is) and not leave to Asian manufacturers to lengthen their lead.

If you’re interested in this book, you may also be interested in


Fletcher, Seth. Bottled Lightning: Superbatteries, Electric Cards, and the New Lithium Economy. New York: Hill and Wang, 2011.

Friday, May 15, 2020

Feeding the Fire by Mark E. Eberhart


Mankind is hungry for energy. The United States is a huge consumer of energy, and our lifestyle depends on it. This makes us, and other developed countries, vulnerable. The burning of fossil fuels is leading to a changing climate that could have many negative ramifications. Our dependence on foreign sources of fuel, especially oil, have embroiled us in wars oversees and made us uncomfortable allies with nations that do not share our values.

Chemistry professor Mark E. Eberhart suggests that we need a good energy diet. Unfortunately, after spending a couple of chapters of Feeding the Fire setting up the idea, he ends up having only a little to say about an energy diet in the final chapter of the book.

In between, however, he tells an interesting history of energy from the big bang to our age. He also provides a primer in thermodynamics aimed at an audience that hasn’t studied science or engineering. If the book had purported to be about that, I’d probably be speaking about it in glowing terms. If you’re looking for a book that explains energy and how it works that is written for an audience with little scientific background, this is a good option.

Though most of the book concerns itself with the dispersal of energy through the universe and the development of technology, the energy diet is mainly a matter of policy. The central element of Eberhart’s vision is an “energy-industrial complex” modeled on the way the U.S. military works with industry on the long-term development, delivery and reliability of technology. U.S. energy policy is so disjointed that in practice we have no policy, but with imagination and discipline (and arguably the setting aside of partisanship for matters of national security that transcend it) we could develop a comprehensive policy that gets our efforts moving toward a more secure, efficient and cleaner future. It doesn’t even need to be a perfect policy, just a commitment to take specific actions and set specific standards to make things better over time.

Eberhart has some specific recommendations, especially related to the development of electric vehicles and supporting technolgies. In the 12 years since Feeding the Fire was published, we’ve made some headway on many of them. This is in spite of the fact that we still do not have a comprehensive energy policy.

If you’re interested in this book, you may also be interested in

Eberhart, Mark E. Feeding the Fire: The Lost History and Uncertain Future of Mankind’s Energy Addiction. New York: Harmony Books, 2007.