Arts, History, Science

Quantum Leaps: Albert Einstein

1879–1955

OF the essays written by Einstein in 1905, arguably the most influential was his enunciation of a “special” theory of relativity, which advanced the idea that the laws of physics are actually identical to different spectators, regardless of their position, as long as they are moving at a constant speed in relation to each other. Above all, the speed of light is constant. It is simply that the classical laws of mechanics appear to be obeyed in our normal lives because the speeds involved are insignificant.

The Speed of Light

But the implications of this principle if the observers are moving at very different speeds are bizarre and normal indicators of velocity such as distance and time become warped. Indeed, absolute space and time do not exist. Therefore, if a person were to theoretically to travel in a vehicle in space close to the speed of light, everything would look normal to them, but another person standing on earth waiting for them to return would notice something very unusual. The space ship would appear to be getting shorter in the direction of travel. Moreover, whilst time would continue as “normal” on earth, a watch telling the time in the ship would be going slower from the earth’s perspective even though it would seem correct to the traveller (because the faster an object is moving the slower time moves). This difference would only become apparent when the vessel returned to earth and clocks were compared.

If the observer on earth were able to measure the mass of the ship as it moved, he would also notice it getting heavier too.

Ultimately, nothing could move faster than or equal to the speed of light because at that point it would have infinite mass, no length, and time would stand still.

A General Theory of Relativity

From 1907 to 1915, Einstein developed his special theory into a “general” theory of relativity which included equating accelerating forces and gravitational forces. Implications of this extension of his special theory suggested light rays would be bent by gravitational attraction and electromagnetic radiation wavelengths would be increased under gravity. Moreover, mass, and the resultant gravity, warps space and time, which would otherwise be “flat”, are turned into curved paths which other masses (for example, the moons of planets) caught within the field of the distortion follow.

Amazingly, Einstein’s predictions for special and general relativity were gradually proven by experimental evidence. The most celebrated of these was the measurement taken during a solar eclipse in 1919 which proved the sun’s gravitational field really did bend the light emitted from stars behind it on its way to earth. It was the verification which led to Einstein’s world fame and wide acceptance of his new definition of physics.

Einstein spent much of the rest of his life trying to create a unified theory of electromagnetic, gravitational and nuclear fields but failed. It was at least in keeping with his own remark of 1921 that “discovery in the grand manner is for young people and hence for me is a thing of the past.”

E=MC²

Fortunately, then, he had completed three other papers in his youth (in 1905) in addition to his one on the special theory of relativity! One of these included the now famous deduction which equated energy to mass in the formula E=mc² [where E=energy, m=mass and c=the speed of light]. This understanding was vital in the development of nuclear energy and weapons, where only a small amount of atomic mass (when released to multiply by a factor of the speed of light squared under appropriate conditions) could unleash huge amounts of energy.

The third paper described Brownian motion, and the final paper made use of Planck’s quantum theory in explaining the phenomenon of the “photoelectric” effect, helping to confirm quantum theory in the process.

Further Achievements

Almost inevitably, Einstein was also drawn into the atomic bomb race. He was asked by fellow scientists in 1939 to warn the US President of the danger of Germany creating an atomic bomb. Einstein himself had been a German citizen, but had renounced his citizenship in favour of Switzerland, and ultimately America, having moved there in 1933 following the elevation of Hitler to power in his home country. Roosevelt’s response to Einstein’s warning was to initiate the Manhattan project to create an American bomb first.

After the war Einstein spent time trying to encourage nuclear disarmament.

In 1922, Albert Einstein was awarded the Nobel Prize for Physics.

. Science Book

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Arts, History, Philosophy

Philosophy: On Reason and Experience

AGE OF REASON AND ENLIGHTENMENT

“Reason and experience both forbid us to expect that national morality can prevail in exclusion of religious principle.”George Washington (1732–1799)

IN the eighteenth century, the Age of Reason – characterised by thinkers such as Descartes, Hobbes and Locke during the seventeenth century – brought about a seismic shift in emphasis in philosophical thought. Massive advances were made in the natural sciences and this in turn led to a questioning of old certainties and a rush of new and often competing ideas concerning everything from how knowledge and truth can be acquired and tested to the first seedlings of notions of democracy, representation and civil liberties. The floodgates opened, characterised best by Kant’s imperative in his essay “What is Enlightenment?” The human mind was emerging from the darkness of infancy and maturing like that of an enquiring child, while Kant urged people to “dare to know”. Reason and experience became the watchwords in this new philosophy, which was more concerned with how things actually are rather than how they could or possibly should be.

However, not all enlightenment was positive. There were darker consequences of this new awakening, as evidenced by the reign of terror following the French Revolution and by the work of possibly the most morose thinker of all time, Arthur Schopenhauer, who once wrote in an essay that everyone should swallow a live toad for breakfast to guarantee they wouldn’t have to experience anything else quite as dispiriting again for the rest of the day. It would also be a mistake to think that the status quo embraced the new enlightenment with open arms. The preface quote for this article is taken from George Washington’s farewell address to the American people and illustrates that although there was an explosion in free-thinking in some quarters, the old guard – the protectors of religious-based morality – were deeply suspicious and frightened of these new ideas about how to live in and view the world.

Reading the great thinkers of reason and experience shouldn’t be difficult. Most of what they had to say seems pretty self-evident today, obvious even, yet somehow their arguments can be difficult to follow. This is largely due to the intellectual zeal with which they approached their investigations and their fervent search for one over-arching, all-encompassing system of thought. It didn’t help either that this spirit of competitiveness led to petty rivalries. The German philosopher Schopenhauer had a hatred of Hegel bordering on the pathological. This drove him to take up a position at the University of Berlin, where Hegel had a seat, just to try and prove his ideas were more popular with the students (but he failed spectacularly). Nonetheless, readers should appreciate that the philosophers of the ages of reason and enlightenment represent a pivotal point in the history of philosophy.

“Truth in philosophy means that concept and external reality correspond… Genuine tragedies in the world are not conflicts between right and wrong. They are conflicts between two rights.”Georg Wilhelm Friedrich Hegel (1770–1831)

HEGEL

Hegel was a major figure in German idealism. His historicist and idealist account of reality was revolutionary at the time and a major factor in the development of some radical threads of left-wing political thought.

Hegel was born on 27 August 1770, in Stuttgart, Germany. He studied philosophy and classics at Tubingen, and after graduation became a tutor and explored theology. Hegel taught at Heidelberg and Berlin, where he wrote and explored philosophical and theological concepts.

His major work, The Phenomenology of Spirit (or mind), was published in 1807 and his ideas developed in other deeply complex works until his death, from cholera, in 1831.

Almost everything that Hegel was to develop over the rest of his life is prefigured in the Phenomenology, but the work is far from systematic and generally accepted as difficult to read. The Phenomenology attempts to present human history, with all its revolutions, wars and scientific discoveries, as an idealistic self-development of an objective Spirit or Mind.

His mark on history has been profound, in that his influence has spread throughout both left- and right- wing political thought. In fact, the interpreters of Hegel split into “left” and “right” camps. Marx drew inspiration from Hegel by developing the idea that history and reality should be viewed dialectically and that the process of change – the struggle – should be seen as a transition from the fragmentary towards the complete. This is a skewed development of what Hegel tried to suggest in phenomenology. However, in practical terms it is likely that Hegel may have approved of Marx’s revolutionary interpretation, as he was witness at close hand to revolutionary Europe towards the end of the eighteenth century. It is even said that he celebrated Bastille Day every year.

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Arts, Books, Culture, History

Book Review: On Savage Shores

LITERARY REVIEW

Intro: How indigenous Americans discovered Europe

IN 1528, Hernan Cortes, the Spanish conquistador, returned home from his travels in South America with “a large group of Nahua nobles”, along with entertainers, tumblers, dwarves, jaguars and an armadillo.

He also brought a team of about a dozen men who played a game of ullamaliztli, “the traditional Mesoamerican ball game”. They were brought home for the entertainment of the King of Spain. In the words of one Spanish observer, the ball itself was “made from the sap of certain trees and other mixtures, which made the ball bounce greatly”.

Caroline Dodds Pennock’s utterly original new book, On Savage Shores, is full of such remarkable stories.

Her aim is to show us a kind of mirror-image of our familiar history: not of Western travellers in the New World, but of the remarkable number of native Americans who also made it over here. There were far more of them than most of us realised, and among other things, they may have introduced us to the joys of the bouncing rubber ball.

But in this great and often tragic clash of cultures, there are inevitably sadder stories of people lost, uprooted, or stricken with strange new diseases.

In 1576, the English explorer, Martin Frobisher, lost five of his crewmen, perhaps murdered, off the coast of Baffin Island, northern Canada. A year later he returned, still hoping to find his lost men – along with the legendary North West Passage to the Indies.

TOUCHING FRAGMENTS

AS a kind of bargaining chip, he seized a native man, woman and her baby, and brought them back to Bristol in October 1577. The Inuits’ names were Kalicho, Arnaq and Nutaaq, the baby’s name meaning, “Someone New”.

Pennock says Kalicho quickly became a local celebrity. Portraying the image of an Inuit hunter in Elizabethan Bristol, she writes: “Paddling up and down the river Avon at high tide in his canoe, and hunting ducks with bow and harpoon.”

Their lives were not long ones, however – nor were Elizabethan lives generally. Kalicho fell ill, tended by one Dr Edward Dodding, and died singing hymns “like the swan who foresees what good there is in death”. He was buried in St Stephen’s, Bristol, along with Arnaq, who probably died of measles.

Little Nutaaq was sent to London but had probably contracted measles as well. He was buried after only eight days in the churchyard of St Olave’s, in the City of London.

It is a touching fragment. But, as with so many stories uncovered here, it offers only a glimpse. Of the inner thoughts and lives of our New World visitors, we know nothing. Did they even want to go back? It’s unclear.

The author claims they were marginalised, silenced or even “erased” by their European hosts. A much more likely explanation is that they didn’t record such things in writing. Incidentally, we know barely anything of Shakespeare’s views and opinions, either.

Closer to us in time is the superbly sardonic account written by a Chippewa chieftain, Maungwudaus, who was part of a travelling show in the 19th century.

He was distinctly unimpressed by the apparent fragility of English gentlewomen: “English women cannot walk alone; they must always be assisted by the men.”

They are brought to the tea table “like sick women”, where they hold their knives and forks with two forefingers and thumb, the other two fingers of each hand “sticking out like fish-spears”.

Priceless. But the gentlemen fare little better, their luxuriant Victorian moustaches making them appear “as if they had black squirrels’ tails sticking out on each side of their mouths”.

The thorough-going bias of the book is tiresome. Pennock rightly criticises the old habit of calling native Americans “savages”, and then in the title applies it herself – to Europe!

An even-handed account would have been much better, with all those centuries of misunderstandings and conflicts, followed by treaties and other trade agreements.

One might prefer the account of Sir Walter Raleigh and his devoted native manservant, Harry, for an example of how people can transcend their narrow views and prejudices and become simply friends.

When Raleigh fell from grace in 1603 and was confined to the Tower, an indigenous man known only as Harry stayed with him for two years as his manservant. Later, it seems, Harry was given his freedom and returned home to the Americas.

When Raleigh was finally freed in 1616, he sailed again, “in one last search for gold and glory”.

Arriving at the mouth of the Cayenne River, “I sent my barge ashore to enquire for my servant Harry the Indien [sic]”.

Harry duly arrived with enough provisions for the English for at least a week. Raleigh, somewhat sick from the exhausting voyage, was carried kindly ashore and rested in a tent, eating pineapples, roasted peccary and armadillo.

He records his deep gratitude at “being fedd and assisted by the Indyans of my ould acquaintance with a greate deal of love and respect [sic]”.

As such anecdotes show, history is multi-faceted, and people are complicated.

Sometimes European colonists cruelly chained and enslaved native Americans; sometimes they actually rescued them, as the author hurriedly admits, from being sacrificed and even eaten by their own people.

Retrospective finger-wagging, or dividing the historical past into Goodies and Baddies, is just daft. Still, if you can put up with the authorial one-sidedness, there is much to learn and enjoy in this unusual history of a forgotten corner of our past.

On Savage Shores by Caroline Dodds Pennock is published by Weidenfeld, 320pp

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