Showing posts with label Isaac Newton. Show all posts
Showing posts with label Isaac Newton. Show all posts

Thursday, June 23, 2016

Book Review: Newton and the Counterfeiter by Thomas Levenson

Newton and the Counterfeiter by Thomas Levenson


Isaac Newton is most famous as a scientist, a key figure in the scientific revolution who developed laws of motion and gravitation as well as calculus (whether Leibniz developed it first is a controversy for another book). He is less well known for his interest in alchemy (transmuting base metals into gold) and esoteric biblical studies. Perhaps least known is his tenure at the Royal Mint, where he oversaw a major recoining project and prosecuted counterfeiters.

While focused on Newton's years with the Mint, this book does sketch out Newton's early years and scientific contributions. During his Cambridge professorship, Newton wrote the Principia and secretly worked on alchemical experiments. He became quite famous in Europe, though he was not very personable. As described in the book, he is the paradigm of the cold, calculating scientist. He did well for himself but did have a teacher's salary.

Friends encouraged him to move to London where he'd have more contacts and better prospects. Newton didn't go until he was offered the job of Warden of the Royal Mint. The main project that faced him was recoining the English money in circulation. At the time, all money was in coins made of precious metals. Unfortunately, silver was more valuable on the Continent than in England, which lead to various schemes where criminals would clip off bits of coins (if not just melting them down) and take the silver to Belgium and France. There, the silver bought more gold than it would in England. The process of exporting English silver, converting it to gold, and returning to England to buy more silver was highly profitable. The Mint redesigned the coins to prevent fraudulent activity.

The other task Newton faced was prosecuting the "clippers" and the "coyners," people who made false coins by mixing in other metals with the silver (if they even used silver). One of the most skillful men at this was William Chaloner. He had the skills to make dies from which to cast coins. In the last two decades, he counterfeited both English and French money. To solve their economic woes (i.e. financing a war with France), the government began issuing the first bonds, described as a lottery investment. Chaloner also forged lottery sheets. These many crimes were hard to prosecute thanks to the corruption in the legal system and the craftiness of the criminals.

The book explains the economic state of England quite well, making it easy to understand the issues involved and the urgency of the situation. The grittiness of criminal life in late 1600s London is especially interesting and compelling. Networks of criminals acquired needed materials, produced forgeries, and distributed the fake money. But if someone was caught they often would be willing to testify against others in order to save their own skins. The cat-and-mouse game Newton and Chaloner played is vividly described and makes for an exciting legal thriller.

Well researched and written, this book is a great, quick read that gives readers a glimpse of a fascinating, if forgotten, bit of history.


Saturday, June 8, 2013

Woolsthorpe Manor, Birthplace of Isaac Newton

Woolsthorpe Manor is a small provincial manor house just south of Grantham, UK. Its claim to fame is that Isaac Newton, the great English scientist, was born here. His grandfather, Robert Newton, had purchased the house and land in 1623. The property came with the title "Lord of the Manor" which immediately raised the family's social status. Grandpa renovated the house and gave it to his son (who was also named Isaac) as a wedding dowry in 1639. Isaac was married to Hannah Ayscough in April 1642. Unfortunately Isaac died in October of 1642, leaving a pregnant widow to manage the estate. His namesake was born prematurely on Christmas Day, and was so small that he could have fit into a quart pot. No one expected him to live. But he did.

Isaac's mother remarried in 1645 and moved to North Witham. She left young Isaac at Woolsthorpe in care of her mother. This act may seem cruel, but the intent probably was to protect the title. He grew up a curious boy, constantly constructing toy mills, sundials, and water clocks. He was fascinated with light and shadows from an early age. Meanwhile, Hannah's second husband died in 1653, leaving three step-siblings who returned with her to Woolsthorpe Manor. Isaac soon went to school in Grantham and moved on at age eighteen to Trinity College in Cambridge.

At college he studied what was expected, the classic Greek scholars. But Newton also read Galileo, Hobbes, Descartes, and Kepler. He began to work on mathematical problems in a new light. After he completed his bachelor's degree in 1665, the plague came to Cambridge. The school was closed and Newton returned to Woolsthorpe for a little over a year. This year is known as the annus mirabilis, because in the quiet of the country home he was extremely productive: he conducted many experiments with light (including with prisms), he saw the apple fall, he worked on his laws of motion and on his theory of fluxions, which theory would become calculus. He also reflected quite a bit on the scriptures and pursued interests in alchemy.

He returned to Cambridge in 1667 and had a notable career. He returned to Woolsthorpe in 1679 to take care of his mother during her last illness. After her funeral he went back to Cambridge, and eventually to London. He died 20 March 1727 and was buried in Westminster Abbey.

The manor house still looks much as it did in Newton's day. The western exterior (the front of the house) only had a small coat of arms added, commemorating Newton's birth here.

Woolsthorpe Manor

Newton Family Coat of Arms

Back of the house

The interior of the building is quite interesting but photography is not allowed. None of the original furniture is extant and the National Trust has borrowed period furniture so the house would look as it did in Newton's day. Since they don't own the furniture, they cannot allow photography! In one of the rooms, the fireplace had a small box in the wall next to it. The box was used for storing books, maybe to protect them from damp? The kitchen was quite extensive. Since the home was part of a sheep farm, they would have had to feed many workers in addition to the family. 

The estate still has several buildings which have been put to various uses. One barn is now an activity room, with science experiments for the children to do and a short film about Newton's life, especially his time at Woolsthorpe.

J builds a helicopter and plays with magnets

Another barn has the tea shop and a science discovery centre with even more exhibits. These included an air hockey table to demonstrate Newton's laws of motion and several colored lights that can be combined to make white light, much like Newton's experiments with prisms.

Apple air hockey

Green+blue+red=...

White!

L the investigator

Up in the loft of the barn (where not everyone went) were displays on Newton's interest in alchemy (like changing base metals into valuable ones (i.e. lead into gold)); his attempts to decode the Old Testament to understand the secrets of reality; his work at the mint trying to thwart counterfeiters. His interests weren't always what we'd think of as purely "scientific" though he did use his methodical approach in these areas.

Outside the house we saw what is presumed to be the apple tree, though from all research it's pretty clear the apple didn't actually fall on his head. It merely fell when he was in a contemplative mood and it started him wondering why it fell straight towards the center of the earth rather than some other random direction.

Apple tree

J and L tried to conduct their own gravity experiments with a nearby bench.

Will we fall straight to the ground?

Yes, gravity works well here.

Is the experiment repeatable?

Maybe it's too repeatable!

We also saw the "wool" part of Woolsthorpe Manor.

Sheep like the ones from Newton's day

The back garden of the house also had a human sundial installed by a group of school children.

Human sundial (sans humans)


Sundial instructions

We enjoyed our visit to the manor and learning more about Isaac Newton, Britain's greatest scientist.