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Tuesday

Newsletter for Tuesday 13 July.

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Feature for Today
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On 13 July 1781, a British patent was taken out by an English mining engineer, Jonathan Carter Hornblower, for the first compound steam engine. Boulton and Watt, who jealously guarded their patent rights as the commercial developers of steam engines, were not impressed.

Hornblower's family had shown inventive genius for two generations, and their interesting family history is described in this article from Dictionary of National Biographies (1901). At the end of the web page are links to further information on Hornblower's steam engine design.


Book of the Day
Beautiful Railway Bridge of the Silvery Tay: reinvestgating the Tay Bridge disaster of 1879

On 13 Jul 1887, the second Tay Rail Bridge was opened in Scotland (and remains in use today). It was built to replace the original single-track railway which suffered a disastrous collapse during a gale in 1879. The passenger train crossing at the time plunged with everyone abroad to their deaths. It had been, for just 19 months, the longest bridge in the world. It is now known, to date, as the worst structural engineering failure in British history. Today's book pick is: Beautiful Railway Bridge of the Silvery Tay: reinvestgating the Tay Bridge disaster of 1879, by Peter R Lewis, a university engineering professor and acknowledged expert on the Tay Bridge Disaster. He gives the bridge’s history, evaluates the tragedy, and details how the Tay Bridge started to suffer irreparable damage of its joints (poorly designed and built) from the day that it carried trains, and that metal fatigue, rather than the gale, played a key role in its deterioration.

It is available from Amazon, typically about New from $19.23. Used from $5.39. (As of earlier time of writing - subject to change.)


Quotations for Today
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The hand is where the mind meets the world.
— Carl Zimmer, American science writer (born 13 Jul 1966). quote icon
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We really try to have only one new particle per paper.
— Patrick M.S. Blackett, English physicist (died 13 Jul 1974). quote icon
Thumbnail of Donald E. Osterbrock
All of us are interested in our roots. Generally this interest is latent in youth, and grows with age. Until I reached fifty I thought that history of science was a refuge for old scientists whose creative juices had dried up. Now of course I know that I was wrong! As we grow older, we become more interested in the past, in family history, local history, etc. Astronomy is, or was when I started in it, almost a family.
— Donald E. Osterbrock, American astronomer (born 13 Jul 1924). quote icon

Quiz
Before you look at today's web page, see if you can answer some of these questions about the events that happened on this day. Some of the names are very familiar. Others will likely stump you. Tickle your curiosity with these questions, then check your answers on today's web page.
Births
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A mathematician and educator, born on 13 Jul 1944, invented a toy that became popular in the 1980s. The toy consists of 26 small cubes that rotate on a central axis; nine coloured cube faces, in three rows of three each, form each side of the cube. When the cube arrangement is randomized, the player must then return it to the original condition of faces with matching colors, which is one among 43 quintillion possible configurations.
Can you name this man - and name his national origin?
Thumbnail of  William Hedley,
William Hedley, born 13 Jul 1779, was an English coal-mine official and inventor who was probably the first to build a commercially useful steam locomotive with driving wheels using the natural friction between their rims and the rails. The locomotive he put in service in 1813 to haul 50-ton coal wagons on a five-mile line was not retired until 1862.
What was the name of this famous locomotive?
Deaths
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Gabriel Lippmann (1845-1921) was a French physicist, who received the Nobel Prize for Physics in 1908 for an advance in photography. Lippmann was a giant of his day in classical physics research, especially in optics and electricity. He worked in Berlin with the famed Hermann von Helmholtz before settling in Paris to head (in 1886) the Sorbonne’s Laboratories of Physical Research until his death. His inventions include an instrument for precisely measuring minute differences in electrical power.
What was the invention for which he was awarded a Nobel Prize?
Thumbnail of James Lind
James Lind (1716-1794) was a Scottish physician, “founder of naval hygiene in England,” whose recommendation on the diet of seamen resulted in the prompt eradication of scurvy from the British Navy. (The Dutch had implemented this practice almost two centuries earlier.) Lind also recommended shipboard delousing procedures and suggested the use of hospital ships for sick sailors in tropical ports. In 1761, he arranged for the shipboard distillation of seawater for drinking water.
What was the life-saving change in diet he recommended?
Events
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On 13 Jul 1836, John Ruggles of Thomaston, Maine received a patent from the U.S. Patent Office, for a traction wheel used in locomotive steam engines. Before this one, there had been 9,957 patents issued. Ruggles was Chairman of the Committee on Patents of the U.S. Senate, and was instrumental in patent law reform. However, in 1838, a Senate select committee investigated corruption charges against Senator Ruggles relating to a patent application.
What was the U.S. Patent Number of Ruggles' patent?
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On 13 Jul of a certain year, a power failure blacked out New York. Starting at about 9 pm, four lightning strikes on high-voltage transmission lines within a half-hour knocked out electricity and plunged millions of residents of New York City into darkness. Because of social tensions of the times, mobs set fires, smashed windows and hauled away food, clothing and appliances. It took 25 hours to restore power entirely. There were about 4,500 people arrested, and damage estimated at $61 million.
In which decade did this happen?

Answers
When you have your answers ready to all the questions above, you'll find all the information to check them, and more, on the July 13 web page of Today in Science History. Or, try this link first for just the brief answers.

Fast answers for the previous newsletter for July 12: Buckminster • George Eastman • outboard motor • Panama Canal • foghorn.
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