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Wednesday, February 20, 2013

Book Review: Cathedral, Forge, and Waterwheel by Frances & Joseph Gies

As much as I am interested in current developments in engineering, I also love the history of technology.  I’m pleased to repost hear a review of Cathedral, Forge, and Waterwheel by Frances and Joseph Gies that I previously posted at Keenan’s Book Reviews.

Among many the Middle Ages, between the Classical period and the Renaissance, is still thought of as the Dark Ages.  In their book Cathedral, Forge, and Waterwheel, Frances and Joseph Gies summarize scholarship that shows that the Medieval period was one of commercial and technological advancement that welcomed invention and the dispersion of knowledge.

The authors present a history of technology beginning with the contributions of Greek and Roman civilization and culminating with European developments on the cusp of the Age of Discovery.  The period in between is sometimes called the Dark Ages because of the lack of documentary history, the loss of the centralizing influence of Roman Empire, and the loss of Greek texts and knowledge in much of Europe.  The Gieses attempt to debunk the notion that this time was “dark” in the sense of being backward, especially superstitious, and lacking in advancement in knowledge, commerce, science, and especially technology.

From a technological point of view, the Middle Ages didn’t inherit from the Greeks or Romans much more than they might have learned for more ancient civilizations.  The Greeks little esteemed the useful arts.  The Romans were very practical adopters of technology, and they certainly did things on a large scale, but their main contribution was size and organization.  Medieval Europe more fruitfully borrowed and built upon technology from China.  Ancient China had very advance technology in comparison to contemporary civilizations, and the spice trade aided the transmission of technology, in the form of both devices and ideas, from East to West.

I think some of the greatest advances in this period occurred in architecture and materials.  In architecture, builders began to move away from Roman circular arches to something more like true arches.  This, along with the flying buttress, another Medieval development, made a new architecture of more open and brighter spaces possible.

Materials greatly improved, too, especially iron.  Either directly or as an idea, iron-making technology moved from China to Europe.  The blast furnace gave Europeans the ability to make cast iron.  Though casting iron parts was in their grasp, the more significant issue was that a lot more iron could be made.  Iron tools and parts made a host of other technology practicable.


Technological changes led to cultural changes, too.  Improved applications of animal and water power to agriculture and food production led to a transition away from slavery to a serf-tenant system in which the people who worked the field had a right to portion of their production.  Agricultural surpluses led to the development of cities along with a decline of bound serfs rise of free tradesmen.  The development of manufacturing led to all kinds of trade and improvements in commercial practices including double-entry bookkeeping.

I think this book may be a good introduction to the history of technology for people seeking an entry point to the field.  It is neither too technical nor too academic in its style.  It covers a period of history that is not as well covered by other popular books.  It also acknowledges and summarizes the technology of the immediately preceding and succeeding ages, so it covers a very wide timeframe.

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

Gies, Frances, & Joseph Gies. Cathedral, Forge, and Waterwheel: Technology and Invention in the Middle Ages.  New York: HarperCollins, 1994.

Tuesday, December 30, 2014

Roundup of Recent News

Construction

Roman Cement Studied

One could argue that the durable cement developed by the ancient Romans helped them build a lasting civilization because they could build lasting structures. Scientists have recreated the mix and studied its properties. You can find the report in the Proceedings of the National Academy of Sciences or a summary in the Washington Post.

Engineering

Be An Engineer Web Site Features Women Engineers

BeAnEngineer.com has profiles of notable engineers, many of them women. Here are links to some of the profiles:


Engineers are Human, Too

Check out former ASCE president Patricia Galloway’s TED talk about the profession of engineering. Engineers care about solving real problems that help real people.

You can see Galloway’s speech here.

Safety

New Reporting Requirements Take Effect January 1

The Occupational Safety and Health Administration (OSHA) has updated it rules related to injury reporting. Though many employers will not be affected by the rule change, it will not be required that all employers report all work-related in-patient hospitalizations, amputations and loss of an eye within 24 hours to OSHA.

Find out more here.

Transportation

Investing in Transportation Good for the Economy

A recent study by the Transportation Construction Coalition touted the benefits of investing in surface transportation infrastructure. These benefits include more jobs, increased incomes, and increased government revenues without tax increases.

You can read the report here, or find a summary at Fleet Owner.

60 Minutes Looks at Crumbling Infrastructure

60 Minutes ran a story on America’s aging and slowly failing transportation infrastructure. You can see the story here.

Wonders in the Sky

Slate named the U.S. Aviation Control System one of its seven wonders of the modern world. America’s airspace is one of the busiest and one of the safest.

Read more about it at Slate.

Water

New York’s Wonderful Water

Slate named the New York City water system one of the seven wonders of the modern world. It is a massive engineered system for a massive undertaking.

Read Daniel Glass’ appreciation of the system here.

Sewers Have Limits: Can’t Handle Grease


I’ve seen shelves of congealed grease on the walls of sewage pump stations. Yes, it is gross. WAMU posted a story of the grease problem in the Washington DC sewers.

Tuesday, December 18, 2012

Going Subterranean in Paris


Writing for Intelligent Life, Will Hunt describes a trip from one side of Paris to the other that was almost entirely underground in his article, “Going Souterrain.”  Modern cities have huge underground infrastructure, and some are large enough to permit men to travel through, though this is dangerous and almost uniformly illegal.  In a city as that also ancient, like Paris which has areas that were populated back in Roman times, that goes double.

There are two things in Hunt’s article that I find particularly interesting.  First, underground portions of Paris are tourist attractions and have been for a long time.  I would be such a tourist, but I realize I’m in a minority.  Second, Paris has as subculture of cataphiles, people who enjoy spending time in the catacombs and other underground structures of that city.  They hang out in popular places, party, and sometime explore.

I do not advocate that unprepared amateurs should trespass on private property or enter underground utility tunnels or sewers.  As I mentioned, it is dangerous.  I do recommend reading “Going Soutterain."

Friday, May 28, 2010

Book Review: Copernicus’ Secret by Jack Repcheck

Repcheck, Jack. Copernicus’ Secret. New York: Simon & Schuster, 2007.

Copernicus is famous for kicking off the scientific revolution by proclaiming his heliocentric (sun-centered) theory of the universe. Someone who reads much about the scientific revolution that came about in the 15th and 16th centuries will come across his name. Even so, there are many misconceptions regarding the astronomer.

The main misconception is that Copernicus was prosecuted for his heliocentric theory. Though his book on the subject was eventually banned by the Roman Catholic Church for about two centuries, he was an official of the church who had taken first orders and he was mostly well received in both the scientific and religious communities of his day. His primary book on the subject wasn’t even published until the very end of his life.

Copernicus had his share of troubles. One he brought on himself by keeping a mistress. His ordination included a vow of celibacy. The other came from being an official of Catholic government in a territory surrounded by recently converted Lutheran countries.



Oddly enough, it was Lutheran mathematics professor who helped the Catholic astronomer prepare is book for publication. Joachim Rheticus was educated at Wittenberg where he taught astronomy and astrology (astrology was widely accepted at the time and practiced by almost all astronomers). He was given a leave of absence, which he stretched out for three years before returning to his duties, and took it upon himself to find Copernicus and become his student.

This was a dangerous situation for Rheticus, Lutherans were banned from Copernicus’ home territory of Warmia, and doubly so for Copernicus because of his role as a church and civil official. That he housed a Lutheran seemed to have been tolerated better than his long affair with a woman.

Copernicus’ Secret is an interesting look at the astronomer’s professional life and its development. It touches on his personal life, especially his long-term relationship with the mistress who lived with him until he was forced to break off the relationship, but this part is much weaker. This may be because Copernicus was a private person. Even so, Repcheck show’s that trouble Copernicus faced had more to do with his personal life and the political tensions of the day than with his proposal of a heliocentric universe.

If you’re interested in this book, you may also be interested in
The Unfinished Game by Keith Devlin