Posts Tagged ‘Renaissance’

Rapper Fab 5 Freddy to Host Beeb Film on Renaissance Art

January 25, 2019

More arts news. Also according to yesterday’s I for Thursday, 24th January 2019, the New York rapper Fab 5 Freddy is due to hos a Beeb documentary about the Renaissance. The article, written by Adam Sherwin, ran

Move over Simon Schama, Fab 5 Freddy wants your spot. The New York hip-hop pioneer and former graffiti artist is the unlikely choice to present a BBC 2 documentary on Italian Renaissance Art.

Fab – real name Fred Brathwaite – was approached to do the film, ‘A Fresh Guide to Florence with Fab 5 Freddy’, after the BBC learnt that he was an art lover who worked closely with Jean-Michel Basquiat in the early 80s, curating the cult artist’s Manhattan shows.

“Amidst superstar artists such as Michelangelo and powerful patrons such as the Medicis, Fab discovers groundbreaking images of a multi-racial and multi-ethnic society that have slipped through the cracks of art history,” the BBC said. (‘A ‘Fresh’ take on the Renaissance’, p. 21).

It might be a surprising choice, but it seems to be a good one in line with current arts policy of getting different voices to open up the arts. A number of BAME artists have appeared in the news complaining that there aren’t enough Black artists shown in museums and art galleries, and that when they were small they weren’t interested in visiting them because there was nothing for them there. It therefore looks like the Beeb is trying to appeal to a younger, Black audience with Fab 5 Freddie in order to stop it being viewed as just something made by old White guys for White guys.

I am also not surprised that they chose a former graffiti artist for other reasons. Archaeologists have been working with graffiti artists for several years now in order to explore rock art and its links with modern graffiti art. I can remember attending an archaeological seminar at Bristol university at least six years ago in which one of the speakers presented a piece about their research about the graffiti in a particular area of one of the Spanish towns. And Radio 4 a few years ago also presented a programme about rock art which included comments from some of Britain’s leading street artists.

As for the Renaissance, Florence was a major centre of trade and industry, but historians have pointed out in books like The Renaissance Bazaar that many of the commercial innovations that made the Renaissance possible had their origins further east in the Islamic world. This was also a period when Europeans were turning from the Slavic east to Africa for a supply of slaves, so that you do find Blacks portrayed in art in this period. Not that they weren’t here before, of course. A 12th century manuscript from London in the National Archives shows a Black person, while one of the books that used to be stocked in shop in Bristol’s M Shed was on Blacks in fifteenth century England.

I’ve no doubt critics of the programme will decry it as ‘dumbing down’ and complain about ‘diversity’, but this could be a programme worth watching because of the original insights Fab 5 Freddie could bring.

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Physics Textbook on Cosmology and Gravitation

March 15, 2018

M.V. Berry, Principles of Cosmology and Gravitation (Bristol: Institute of Physics Publishing 1989).

Yesterday came the news of the death of the great British physicist and cosmologist, Stephen Hawking at the age of 76. Hawking had suffered for most of his adult life from motor neurone disease, since he was diagnosed with it in his early 20s. He was given only three years to live, but instead managed to live out a very full lifespan working on his theories of the origin of the universe and Black Holes. He was a great ambassador for science. His book, A Brief History of Time, was a bestseller when it appeared in 1980s, although he admitted that it was probably a book few finished. And he showed that it was still possible for a disabled person to do cutting edge research, provided they had the necessary technical and medical support. In his case, it was his wheelchair and the machine that allowed him to speak, first of all by keying in the words, then by twitching just a single muscle. Some of the praise seemed a bit too fulsome to me. Like when they started saying that he was the greatest scientist since Newton and Einstein. I don’t think he was. And Hawking on his own didn’t unlock the secrets of universe or Black Holes, as the Beeb’s presenters also claimed. As for his great sense of humour, well, it existed, as his appearance on shows like The Simpsons demonstrated, but my memory of it is marred by him turning up with the TV critic, Victor Lewis Smith, telling fart jokes and laughing on the 1990s series, Inside Victor Lewis Smith. But it really was inspiring to see how he was a great hero to the ‘A’ level students at a science fair yesterday, and how he had inspired them to become interested in science.

One of the complaints Richard Dawkins has made about popular science programmes is that they’re too ‘dumbed-down’. He points out that they have to have lots of explosions, and they mustn’t include equations, in case that scares people off. There’s a lot with which I don’t agree with Dawkins. I’m not an atheist, and have argued on this blog against him and the other militant atheists. But he is right here. Scientists writing the popular science books have said that they’ve been told by their publishers to leave equations out, because every equation in a book damages sales.

I think this is the wrong attitude to have. It’s why I’ve put up this piece about the above book by M.V. Berry. It’s an undergraduate physics textbook, which does contain the fundamental mathematical equations for this area of physics. Its contents include

1. Introduction

2. Cosmography
2.1 What the universe contains
2.2 The cosmic distance hierarchy and the determination of galactic densities
2.2.1 Parallax
2.2.2 Distance from velocity measurements
2.2.3 Distance from apparent luminosity
2.2.4 Weighing galaxies
2.3 The red shift and the expansion of the universe.

3. Physical base of general relativity
3.1 The need for relativistic ideas and a theory of gravitation.
3.2 Difficulties with Newtonian mechanics: gravity
3.3. Difficulties with Newtonian mechanics: inertial frames and absolute space.
3.4 Inadequacy of special relativity.
3.5 Mach’s principle, and gravitational waves.
3.6 Einstein’s principle of equivalence.

4 Curved spacetime and the physical mathematics of general relativity.
4.1 Particle Paths and the separation between events
4.2 Geodesics
4.3 Curved spaces
4.4 Curvature and gravitation.

5 General relativity near massive objects
5.1 Spacetime near an isolated mass.
5.2 Around the world with clocks.
5.3 Precession of the perihelion of Mercury
5.4 Deflection of light
5.5 Radar echoes from planets
5.6 Black Holes

6 Cosmic Kinematics
6.1 Spacetime for the smoothed-out universe
6.2 Red shifts and horizons
6.3 Apparent luminosity
6.4 Galactic densities and the darkness of the night sky.
6.5 Number counts

7 Cosmic dynamics
7.1 Gravitation and the cosmic fluid
7.2 Histories of model universes
7.3 The steady state theory
7.4 Cosmologies in which the strength of gravity varies

8 In the beginning
8.1 Cosmic black-body radiation.
8.2 Condensation of galaxies
8.3 Ylem.

Appendix A: Labelling astronomical objects
Appendix B: Theorema Egregium
Problems
Solutions to odd-numbered problems
Useful numbers.

there’s also a bibliography and index.

I’m not claiming to understand the equations. I struggled at both my ‘O’ level maths and physics, and what I know about science and astronomy I learned mostly through popular science books. But in the mid-1990s I wanted to see at least some of the equations scientists used in their explorations and modelling of the universe. One of the popular science books I was reading said at the time that this book was at the level that people with ‘A’ level maths could understand, and this didn’t seem quite so much a jump from my basic maths skills. So I ordered it. I’m afraid I can’t say that I’ve read it properly, despite the fact that I keep meaning to. Some of the equations are just too much for me, but I can follow the explanations in the text. I’m putting this notice of the book up here, in case there are any budding Stephen or Stephanie Hawkingses out there, who want to go a bit further than the pop-sci explanations, and see for themselves what the maths behind it all is like.

The Beeb also said in their eulogy for the great man, that Hawking hoped that the people reading his A Brief History of Time would come away with one point, even if they hadn’t finished it: that the universe is governed by rational law. Actually, this ideas isn’t unique to Hawking by a very, very long way. It actually comes from the Middle Ages, and is the assumption that makes science possible. Hawking was an agnostic, I believe, and many scientists are atheists. But this assumption that the universe is governed by rational laws ultimately comes from Christian theology. The founds of modern science in the Renaissance pointed to the passages in the Bible, in which God’s Wisdom creates the universes and establishes the boundaries and courses of natural phenomena, like the tides and stars. And the anarchist of science, Feuerabend, pointed out that the assumption that the laws of the universe all form a consistent whole come from Christian doctrine, quoting the 13th century theologian and philosopher, Thomas Aquinas: ‘We must believe that the laws of the universe are one, because God is one.’

Hawking has passed away, but it’s clear that he has inspired many more people to become interested in this rather arcane branch of the sciences. I hope this continues, despite the Tories’ attack on education and science and research for its own sake.

Radio 4 Programme on Science in the Dark Ages

November 15, 2017

Radio 4 are also broadcasting a programme next week, which intends to challenge the view that the Dark Ages were a period of intellectual decline with very little interest in science. The new series of Science Stories kicks off next Wednesday, 22nd November 2017, with ‘A Wold, a Goat and a Cabbage’. The blurb for this in the Radio Times on page 135 reads

Philip Ball looks at how the Dark Ages was a far more intellectually vibrant era than is often perceived-and the monk who was the prsumed author of mathematical puzzles.

I’ve written several pieces on this blog about how the Middle Ages in the West were a period of scientific and mathematical invention and discovery, far more so than is generally recognised. Scientists have been rediscovering and re-evaluating scientific progress in the Middle Ages science Jean Gimpel’s The Medieval Machine. The previous view, which most people of my age were brought up with, that the Middle Ages were intellectually backward until the Humanists appeared in the Renaissance, has now been overturned.

James Hannam, a scientist of Christian faith, did a Ph.D. on medieval science about ten years ago, and his book, God’s Philosophers, shows how the ‘natural philosophers’ of the Middle Ages laid the foundations of modern Western science. These writers, who were largely Christian clergy, were very much aware of the faults of Aristotelian science. While they did not break with it, they did try to modify it so that it conformed more to what actually existed in nature, or offered a more intellectually plausible cause.

And rather than creating modern science, the Renaissance Humanists were actually a threat to its emergence. The Humanists insisted on a far more faithful return to the ideas as well as literary style of the great classical authors. Which meant a far more literal and dogmatic approach to Aristotle. In his Dialogue on the Two World Systems, Galileo spoofed the Humanists by making the character, who represented them, appear as stupid as possible. In one episode, a physician invites the Humanist to come to his house one evening and see him dissect a body. The physician intends to show him that it must be the brain, not the heart, that is the seat of intelligence. Pointing to the dissected corpse, the physician shows the far greater number of nerves passing into the brain, in contrast to the single, thin nerve running to the heart. This, he says, shows that the brain must be the centre of thought and reason. The Humanist replies that he would believe him, if the great Aristotle also agreed.

The Christian medieval authors were also aware of the debt they owed to the Arab and Muslim world for editions of classical works that had previously been lost to the West. One medieval poem describes how scholars headed to Toledo and other areas in Spain to consult the Arab scholars, who were masters of these new intellectual frontiers. One of the French chroniclers of the Crusades, either Joinville or Froissart, described how, during negotiations between King Louis and one of the Arab potentates, one of Louis’ nobles trod on his foot under the table. It was intended as a secret warning. The negotiations involved maths in some way, and the nobleman wanted to warn his liege to beware, as the ‘saracens’ were much better calculators than they were.

As for the reliability of science, the poem I quoted above also remarked of one scientific phenomenon, that its existence couldn’t be doubted as ‘it was proved by SCIENCE’.

Clearly, science and the investigation of the natural world was very much in its infancy in the Middle Ages, and ideas were subject to censorship if they conflicted with Christian dogma. But the Middle Ages were also a period of scientific investigation and were far more rationalistic than is often believed. For example, the theologian William of Auvergne, described the supposed appearance of a great of demons in one of the French monasteries. These devils proceeded down the corridor, until they disappeared into the privies, from which came a horrible stench. William was not surprised. He put visions like this down to poor digestion interfering with proper sleep. After too full a meal, the stomach hung heavy on the nerves, preventing the proper circulation of the humours and nervous fluids, and so creating nightmarish visions like the one above. Other writers seriously doubted the abilities of cunningmen and scryers to find lost or stolen objects. When they did claim that an article had been stolen by a particular person, it was far more likely that the individual was a known thief than that they had been shown it by the spirits.

I’ve been annoyed before now at the way the media has continued to present the Middle Ages as a period of dark superstition, with a few notable exceptions. One of these was Terry Gilliam and his TV series, Medieval Lives, which has appeared as a book, and his radio series, The Anti-Renaissance Show, both of which were broadcast by the Beeb. Now it seems that the Corporation is once more showing the other side of intellectual life in the Middle Ages.

Leonardo’s Rivals

September 22, 2013

One of the most interesting series on television was a documentary the BBC screened a little while ago about Leonardo da Vinci and his inventions. It mixed drama and explanation and opinion from a variety of historians and scholars to trace the life and scientific exploration and discoveries of one of the very greatest geniuses of the Renaissance. It was fascinating viewing, particularly when they tried out da Vinci’s design for a diving suit in the canals of Venice. Da Vinci was truly a polymath, responsible for a number of amazing inventions well before his time, such as the caterpillar track and helicopter. I don’t believe, however, that Leonardo was quite the isolated figure as is the common impression of him. There were other engineers at the time working on some of the same problems.

Jean Gimpel, in his The Medieval Machine, traces some of da Vinci’s ideas back to the thirteenth century French engineer and inventor, Villard de Honnecourt. This has been challenged, and other historians have science have rejected the suggestion that he influenced da Vinci. Nevertheless, it appears that de Honnecourt and da Vinci did work on some of the same problems, even if de Honnecourt never developed his ideas to the same extent that da Vinci did his. In the 14th century another, unknown engineer, began to consider an alternative method of propulsion for ships. There’s an illustration from a manuscript of 1436 of a paddle-ship, whose wheels are turned by the oxen on board.

Madieval Paddle Ship

During the fifteenth century a number of Italian engineers attempted to design something like the modern car. Around 1410, Giovanni da Fontana produced the design below for a ‘self-driving’ carriage, operated by hand.

Medieval Car

The car designed by Francesco di Giorgio Martini was powered by four capstans, each serving one of the vehicle’s wheels. It even had a steering wheel. Di Giorgio Martini called his vehicle an automobile, which is probably the earliest use of the term to describe something like the modern car.

Medieval Automobile

Roberto Valturio, who died in 1484, designed a carriage that would be driven by the wind. Mounted on each side of the car’s frame were two windmills, each with four incline sails. These turned another, large will, which communicated the power to the two wheels underneath it.

Renaissance Sail Car

In Germany, Konrad Kyeser invented a double crane, while di Giorgio Martini created a device for lifting columns. De Kyeser also invented a diving suit. Two types of these suits are shown in one of his illustrations dating to 1400. One of the suits is from a design of the fourth century Roman scholar, Vegecius. This is simply a helmet and a leather tube, through which the diver breathed, leading to a floating bladder on the surface. This type of diving suit may have already been in use long before. In 1240 Roger Bacon stated that there were ‘instruments which men could use to walk on the bed of the sea or of rivers without endangering themselves’. The other diving suit drawn by Kyeser showed a helmet with two glass holes for the eyes, fixed to a tabard belted on the wearer. This is the first known representation of a body suit. In 1582 another German engineer, Peter Morice, or Moritz, installed a tide mill near London. This operated a force pump with enough power to supply the city of London.

Unfortunately, you rarely hear about these other, fascinating medieval and Renaissance inventions. Perhaps this may change with the increasing influence in Cyberpunk science fiction, which fantastically explores the scientific possibilities of the Victorian period. Possibly this type of SF may encourage others to look even further back in time, to the forgotten inventions and inventors of the Middle Ages and Renaissance. The role-playing game, Ars Magica is already set in the Middle Ages, and is based both on the world of medieval magic and their scientific worldview. Many of its players are historians of medieval science at universities. Perhaps in time knowledge of these inventions and achievements won’t be limited to the relatively small number of people, who play RPGs, and these engineers and inventors will at last receive the recognition they deserve from the wider public.

Sources

Great Inventions through History (Edinburgh: W&R Chambers 1991.

Sigvard Strandh, Machines: An Illustrated History (Nordbok 1979).

Science Britannia and the Need for a Programme on Medieval Science

September 22, 2013

Last week, the Beeb started a new series on the history of science, Science Britannia, broadcast on BBC 2 on Wednesdays at 8.00 pm. Fronted by Professor Brian Cox, now Britain’s answer to Carl Sagan, the series traces the development of British science and the personalities of the scientists involved from the mid-18th century. The name, Science Britannia, seems to come from the various music documentary series the Beeb has screened over recent years, such as Jazz Britannia, and one on caricature, political satire, the Music Hall and burlesque, Rude Britannia. Now any series on the history of science is to be welcomed, though my problem with such series is that they are always set in the Renaissance or later. In this case, I suspect the series has been influenced in its selection of the date at which to begin by Jenny Uglow’s, The Lunar Men. This was about the 18th century society of natural philosophers – the term ‘scientist’ was not coined until the 19th century – of which Erasmus Darwin was a member. He published his own theory of evolution fifty years before that of his better-known grandson, Charles. On this Wednesday programme Cox does go back to Isaac Newton in the 17th century, to examine his psychology, as well as that of later pioneering British scientists.

I do have one criticism of these series, however. They largely ignore the amazing scientific and technological advances that went on during the Middle Ages. Historians of medieval science, such as James Hallam in his book, God’s Philosophers, and A.C. Crombie in his two volume history of medieval science, have demonstrated that there was no Scientific Revolution in the 16th and 17th centuries in the sense that these ideas were a radical break with medieval science. They weren’t. Instead, they had their roots very much in the investigations and examination of nature of medieval natural philosophers even as they rejected their Aristotelianism. Roger Bartlet, in his programme on the medieval worldview, has demonstrated that the Middle Ages were not anti-science and that the mixture of science and faith made perfect sense to them, even if it now seems irrational to us. For example, I made a list of about 20 innovations that appeared in Europe during the Middle Ages. They were
Adoption for the purpose of preventing the deaths of unwanted children, Council of Vaison, 442.

Linguistics: Priscian, 6th century.

Floating Mills, Belisarius, 537.

Orphanage, St. Maguebodus, c. 581.

Electrotherapy, Paul of Aegina, 7th century.

Tide Mills, Adriatic and England, 11th century.

Armour plated warships, Scandinavia, 11th century.

Lottery, Italy, 12th century

Harness, Europe, c. 1150.

Spectacles, Armati or Spina, c. 1280.

Pencil – silver or black lead used for drawing, 14th century.

High Explosive Marine Shell, Netherlands, c. 1370, or Venice 1376.

Movable type, Laurens Janszoon, alias Coster, 1423,

Oil painting, H and J Van Eyck, 1420,

Diving Suit, Kyeser, c. 1400.

Double crane, Konrad Kyeser, early 15th century.

Screw, 15th century Europe.

Arquebus, Spain, c. 1450, first used at Battle of Moret, 1476.

Hypothermia, France, c. 1495.

Air gun, Marin Bourgeois, 1498.

Source

Great Inventions Through History (Edinburgh: W&R Chambers 1991).

This is only a short list. There have been whole encyclopaedias written on medieval science and technology.

I think one reason why such as programme has not been broadcast is because it conflicts with the received wisdom about the Middle Ages, and the aggressively atheist views of some of the media own scientific darlings. Since the Renaissance, and particularly since the 19th century, the Middle Ages have been viewed as an age of superstition, in which the Church actively discouraged and persecuted science and scientists. This wasn’t the case, but the idea is still promoted very strongly. One of those, who continues to do this, is Richard Dawkins, who is now known as an atheist propagandist almost as much for his work as a biologists and science writer. Very many of the science programmes screened on British television, whether BBC or Channel 4, included Dawkins as an expert. He is a popular speaker at literary and science festivals, even though his views on the relationship between science and faith and the history of science are completely wrong. Nevertheless, it agrees with the historical prejudices of his audience and the media. James Hallam said that he found it difficult to find a publisher for his book, God’s Philosophers, but its demonstration that people of faith – Christian priests, monks and laymen – could do great science in the Age of Faith – directly contradicted the popular view of the period. One publisher explicitly told him that they weren’t going to be publish the book because they were an atheist. Censorship and bigotry is by no means the sole province of the religious.

Unfortunately, the current institutional structure of the BBC and its commissioning process appears to make this extremely difficult to correct, at least for those outside of the television industry. A year or so ago I was so incensed at the repeat of the media’s prejudice against medieval science, that I considered writing to the BBC to propose a series on it to correct it. I ended up giving up altogether. If you go to the relevant pages on this, you’ll find that while the BBC will accept scripts and suggestions from outside the industry for drama, fiction and comedy, all factual content must be developed with a production company before they will consider it. What this means is that unless you are already a media insider, you have absolutely no chance of getting your idea for a factual series developed for TV.

I hope, however, that the Beeb’s view of medieval science will change, and that we can expect a series on it sometime soon. In the meantime, if anyone has any suggestions, how I can approach the Beeb or another TV channel or production company to get such a series made, please let me know. It’s about time we did something to challenge this fashionable atheist myth.

Review: God’s Philosophers by James Hannam (London: Icon Books 2009)

April 8, 2013

Bede's Book Cover

I received a copy of this book about four or so years ago when it was first published for review on my blog. Unfortunately, I was buy with other things at the time, and increasingly frustrated with arguing with some of the commenters. So the review has been delayed until now.

Subtitled ‘How the Medieval World Laid the Foundations of Modern Science’, the book is the result of James’ research for his doctorate into the history of medieval science. James’ is a Roman Catholic with a background in physics. He is also ‘Bede’, who runs the Bede’s Library website, and the Quodlibitum blog. These are Christian apologetics websites discussing science, philosophy and history. James is a Roman Catholic, but his website deals with issues that affect all Christians, and specifically those with an interest in science and its history regardless of their particular denomination. He states on his website that he initially found it difficult to get the book published. One publisher explicitly told him they rejected it because they were atheists, which should show that atheists are as capable of intellectual bigotry and censorship as their religious opponents.

The books’ chapters discuss technological innovation and advancement during the ‘Dark Ages’ following the fall of Rome, the beginning of medieval academic science with with the career of Pope Gerbert of Aurillac, the rise of rationalism and the intellectual prestige of theology, and the controversies of St. Anselm, Peter Abelard, Roscelin and Berenger. It also covers the twelfth renaissance, including William of Conches and Adelard of Bath, as well as the translation of scientific and philosophical works from Greek and Arabic, and the foundation of the first universities. It discusses the Church’s attempts to combat heresy during the thirteenth century, which included the University of Paris’ ban on Aristotle, the establishment of Inquisition and the foundation of the Dominican and Franciscan orders of friars. He also discusses the Christianisation of pagan Graeco-Roman science and philosophy by Albert the Great and Thomas Aquinas, and the controversies with the Latin Averroeists, such as Siger of Brabant. These followed Aristotle in believing in the eternity of the world, and that humans possessed a single, collective mind rather than individual souls. That chapter also describes the architectural innovations that led to the construction of the great cathedrals. There are other chapters on magic and medieval medicine, alchemy and astrology, including the philosophers stone and the elixir of life, and the occult forces which the medievals believed permeated the cosmos; Roger Bacon is also discussed along with medieval war machines such as the trebuchet and medieval optics, which had its background in the theological view that light illuminated not just the physical world, but also the mind and soul. There are further chapters on the great medieval clockmaker Richard of Wallinford, the Merton Calculators, and the culmination of medieval science in the great scholars and clergymen of the later Middle Ages, Jean Buridan, Nicole Oresme, and its decline following the Black Death. The book also discusses fifteenth century scholars and developments such as Nicholas of Cusa, medieval geography and the impact of Columbus’ discovery of the New World the Fall of Constantinople and the invention of printing. It also covers Humanism and the Reformation, the great polymaths of the sixteenth century, medicine and surgery in the sixteenth century, Copernicus and Humanist Astronomy, as well as the further, radical developments in astronomy introduced by Clavius and Kepler. The last three chapters are on the career of Galileo, which also include a section on the execution of the renaissance heretic Giordano Bruno.

Throughout the book, James criticises and attacks many of the myths that have grown up about medieval science, particularly that the medieval church was hostile to it and that the Middle Ages was a period of scientific ignorance until the Renaissance and the ‘Scientific Revolution’ of the 17th century. In his introduction, James traces the origin of this idea from Petrarch and the Renaissance Humanists, through Enlightenment anticlerical and atheist writers such as Voltaire and D’Alembert, through to 19th century scholars such as Andrew Dickson Wright and Thomas Huxley. Popular science presenters such as Carl Sagan, James Burke and Jacob Bronowski further promoted this myth in the 20th century. The book’s conclusion ‘A Scientific Revolution?’ further criticises this idea, and argues that there was never a scientific revolution in the sense that science somehow appeared only in the seventeenth century. Instead, he argues that the great advances of the seventeenth century were built on the considerable foundations of medieval science and its scholars. One of the most astonishing pieces in the book is the fact that in some respects Renaissance Humanism was actually a step backwards from the great advances of the Middle Ages. The popular view of Humanism, that generations of schoolchildren and adults have been taught, is that the revival of classical learning at the end of the Middle Ages led people out of the ignorance of the Middle Ages and into a new age of learning and discovery. The medieval scholars and natural philosophers were aware of some of the flaws in Aristotelian science. While they remained impressed with the Aristotelian system, they sought to refine and modify it so that it conformed to observed reality. The renaissance Humanists, by contrast, wished to purge natural philosophy of these accretions and so return to the original scientific views of Aristotle himself. This was the background to Galileo’s own attack on Aristotelianism in the Dialogue of the Two World Systems. This includes a passage where a natural philosopher attempts to show an Aristotelian that the brain, rather than the heart, was the centre of intelligence through dissection. The philosopher shows the myriad nerves running to the brain, compared with only a single, thin nerve leading to the heart. The Aristotelian agrees that he would be convinced that the brain is indeed the seat of thought, if Aristotle had not declared otherwise. Such scepticism towards Aristotle did not just come from developments in anatomy, but also from medieval revisions of Aristotle, such as Jean Buridan’s theories of motion. James also points out that the Reformation did not lead to advances in science, as has been argued in the past. He also shows that the medieval resistance to the Copernican sun-centred model of the universe were scientific, not theological in basis. One Spanish theologian wrote a book stating that the revolution of the Earth was perfectly acceptable theologically, as the Bible was written to express the view of the cosmos as it was seen from Earth, rather than from space. His next book attacked the idea that the Earth moved purely because it was believed to be scientifically nonsensical.

The book has numerous illustrations and a useful section for further reading. Its written for the popular, lay audience and provides a comprehensive overview of the development of medieval and sixteenth century science. This is much needed, as many of the classic treatments of medieval science and its advances, such as Jean Gimpel’s The Medieval Machine and A.C. Crombie’s Augustine to Galileo: Science in the Middle Ages were published decades ago – Gimpel in the 1970s, while Crombie’s as long ago as 1952. Both of these are still well worth reading. Several of the recent books on medieval science are written for a university readership and can be very expensive. One encyclopedia of medieval science and technology costs about £300, which is beyond the pocket of most people. Despite books like the above, the image of the Middle Ages as an age of scientific ignorance is still extremely strong. One popular history of science for children I found in my local library went straight from the ancient Greeks to the renaissance. If it did have a section on the Middle Ages, it was so short that I missed it. Modern historians of science have rejected the view that religion and science are somehow at war and incompatible. Nevertheless, it’s a fundamental part of the New Atheism, including Richard Dawkins’ The God Delusion. As for Sagan, Bronowski and Burke, they were brilliant broadcasters and science journalists who did much to popularise it. Like Bede, I can remember being enthralled by Sagan’s Cosmos when it was broadcast on the Beeb back in the 80s, along with Bronowski’s The Ascent of Man. As good as they were, however, their view of the Middle Ages and its achievements was partisan and extremely flawed. For a much better view, I recommend people read this book.