Astronomers From England

"In conversing with persons who are not officially attached to Observatories or in other ways professionally cognizant of the technicalities of practical Astronomy but who nevertheless display great interest... these persons appear to regard the determination of measures like those of the distance of the Sun and Moon as mysteries beyond ordinary comprehension... [and] when persons well acquainted with the general facts of Astronomy are introduced into an Observatory, they are for the most part utterly unable to understand anything which they see... The measure of the Moon's distance involves no principle more abstruse than the measure of the distance of a tree on the opposite bank of a river. The principles of construction of the best Astronomical instruments are as simple and as closely referred to matters of common school-education and familiar experience, as are those of the common globes, the steam engine, or the turning-lathe; the details are usually less complicated."

"It is not simply that a clear understanding is acquired of the movements of the great bodies which we regard as the system of the world, but it is that we are introduced to a perception of laws governing the motion of all matter, from the finest particle of dust to the largest planet or sun, with a degree of uniformity and constancy, which otherwise we could hardly have conceived. Astronomy is pre-eminently the science of order."

"His eye-sight was peculiar, and required correction by spectacles the lenses of which were ground to peculiar curves according to formulae which he himself investigated: with these spectacles he saw extremely well, and he commonly carried three pairs, adapted to different distances: he took great interest in the changes that took place in his eye-sight and wrote several Papers on the subject."

"But there are still many unanswered questions. The halo that surrounds our Galaxy is one mystery region... The centre of the Galaxy hides even more secrets."

""Have we discovered our Galaxy yet?" And I think the answer to this question is "No, not quite". There is plenty of work ahead for the next generation of astronomers."

"It seems impossible to believe that Life, so rare a fruit of the universe, intelligent Life, conscious Life, to which the long course of evolution has been so manifestly leading up all through the long ages, should have no better destiny than a final and hopeless extinction; that this Earth and all the efforts and aspirations of the long generations of men should have no worthier end than to swing, throughout the eternal ages, an empty, frozen heap of dust, circling round the extinct cinder that was once its Sun. If we look backward, we seem to discern clear signs of progress; if we look forward, we discern nothing but the veil. Science is but organized experience, and experience of the future we have none."

"Christopher Wren, the leading architect of London's reconstruction after the great fire of 1666, lies buried beneath the floor of his most famous building, St. Paul's cathedral. No elaborate sarcophagus adorns the site. Instead, we find only the famous epitaph written by his son and now inscribed into the floor: “si monumentum requiris, circumspice”—if you are searching for his monument, look around. A tad grandiose, perhaps, but I have never read a finer testimony to the central importance—one might even say sacredness — of actual places, rather than replicas, symbols, or other forms of vicarious resemblance."

"Perhaps you have heard the story of Christopher Wren, one of the greatest of English architects, who walked one day unrecognized among the men who were at work upon the building of St. Paul's cathedral in London which he had designed. "What are you doing?" he inquired of one of the workmen, and the man replied, "I am cutting a piece of stone." As he went on he put the same question to another man, and the man replied, "I am earning five shillings twopence a day." And to a third man he addressed the same inquiry and the man answered, "I am helping Sir Christopher Wren build a beautiful cathedral." That man had vision. He could see beyond the cutting of the stone, beyond the earning of his daily wage, to the creation of a work of art—the building of a great cathedral. And in your life it is important for you to strive to attain a vision of the larger whole."

"He was of opinion that what we now vulgarly call the Gothick, ought properly and truly be named Saracenick Architecture refined by the Christians."

"Sir Christopher Wren Said, "I am going to dine with some men. If anyone calls Say I am designing St. Paul's.""

"A time will come when men will stretch out their eyes. They should see planets like our Earth."

"Architecture has its political Use; public Buildings being the Ornament of a Country; it establishes a Nation, draws People and Commerce; makes the People love their native Country, which Passion is the Original of all great Actions in a Common-wealth…. Architecture aims at Eternity."

"An air of mystery surrounds his researches, lying, as they do, chiefly in depths to which the far-seeing eye of the telescope alone penetrates."

"The whole system has been long since swept away, and its records merely remain as illustrations of perverted ingenuity."

"As an astronomer in the true sense of the term, Sir John Herschel stood before all his contemporaries. Nay, he stood almost alone."

"It is as though a star throws the whole secret history of its being into its spectrum, and we have only to learn how to read it aright in order to solve the most abstruse problems of the physical Universe."

"What parts of the interior or the atmosphere give rise to the various phenomena, or indeed, if these regions have any parts at all, are questions which we ask of the stars in vain."

"A science in its infancy is the least satisfactory, and, at the same time, the most profitable theme for a general description."

"The numerical side of the theory of relativity is derived from the failure of all attempts to detect the relative motion of matter and ether."

"The aim of the scientist is to express, in as simple a statement as possible, the principles underlying the order and arrangement of phenomena."

"It is the event that is the immediate entity of perception; Nature is the sum-total of events, and every instrument of thought that our minds employ can be traced back to its ultimate origin in events."

"Between the Charybdis of inaccuracy and the Scylla of abstruseness, the course is narrow and the sea is rough."

"Matter, space, and time ... according to the relativist, are types of relations between events."

"A ray of light, passing close to a heavy body, should, on Einstein's assumption, suffer a slight chance of direction, as if it were pulled towards the body. According to Newton's principles, there seems to be no reason why the light should be bent at all. It is possible, however, that light possesses the equivalent of weight in a material body, and, if so, the gravitational force should cause a bending similar to that predicted by the theory of relativity, but of only half the amount."

"A great idea invariably creates as many problems as it solves: that is a sign of its greatness."

"[Ryle] lived through an epic period of scientific history, starting his career in the turmoil of wartime electronic countermeasures, and turning eventually to a deep concern about the future of mankind in the age of nuclear power and warfare."

"We must put our energies into solving the difficult problems, in many disciplines, which are involved in renewable sources - on which both the developed and the developing countries must eventually depend."

"[The steady-state theory] was a minority view, but [Hoyle] and a few like-minded theorists were able to keep the plate spinning for years. Another Cambridge luminary, Martin Ryle, finally brought it crashing down. An irascible, hardheaded experimenter, Ryle thought theorists like Hoyle were daffy. In a colloquium on sunspots, Mitton reports, Ryle became so incensed by Hoyle's speculations that he dashed to the blackboard and angrily erased the equations."

"If we are to survive, we must not accept the official indoctrination of the purpose of nuclear 'power' stations, radiation health risks, the 'need' for further nuclear weapons and the reality of nuclear war."

"The benefits of medical research are real - but so are the potential horrors of genetic engineering and embryo manipulation. We devise heart transplants, but do little for the 15 million who die annually of malnutrition and related diseases. Our cleverness has grown prodigiously - but not our wisdom."

"The glorious years of discovery in radio astronomy in the Cavendish Laboratory, Cambridge were dominated by the personality of Martin Ryle."

"The reader has by now probably become accustomed to the reversals of fortune so common in astronomy."

"It has now become clear that the exploration of the Universe, as conducted by physicists, astronomers and cosmologists, is one of the greatest intellectual adventures of the mid-twentieth century."

"It is not surprising that it was the Greeks, with their profound understanding of geometrical principles, who were the first to devise methods of measuring the size of the earth and the distance to the sun and the moon. Indeed, their results were not superseded until the eighteenth century, when telescopes had been developed to the point where new methods could be introduced."

"... I started thinking about gravitational theories and Mach's Principle and so on, I knew already then, very slightly, Hermann Bondi and Tommy Gold, and I talked to them a bit about these things, I remember I asked Bondi to tea one day and told him the thoughts I'd had and I said, "Are they rubbish? What should I do?" He said, "Why not go on thinking about them?" I think that was very good of him, because I'm quite sure in retrospect it was rubbish what I said, as I was very immature at that time ..."

"You know my favourite Dirac story: I go up to him once and I say, "Professor Dirac, I've just thought of a way of relating the formation of stars to cosmological things — not galaxies, stars — shall I tell you about it?" And he said, "No.""

"A theorist can explain any correlation, and its inverse."

"This is a terrific outburst. And since it doesn’t have a tail right now, some observers have confused it with a nova. We’ve had at least two reports of a new star."

"When the Deep Impact probe hit Comet 9P/Tempel, there was almost no change in brightness. … This outburst by Comet Holmes is extreme!"

"What delighted me was that it's 30 years from now — not next week or next year. … That would be totally hopeless; that would be terrifying, in fact. Time is on our side in this one — that's why it's such a wonderful illustration of the process... I say 30 years is a good long time to do something about it if it is a problem … We should be thankful we have this kind of notice."

"It is probably a good idea to search, at some level, for asteroids that come to the Earth's general vicinity. But merely counting the asteroids found is not sufficient. It is desirable to follow up each discovery to examine whether it can or can not be a threat during the next century or so. Objects for which the threat cannot be eliminated should be singled out for special study, notably to the extent of searching for old images in photographic archives. 1997 XF11 was noteworthy for the apathy shown to it prior to the very widespead announcement in March. If proper attention had been given to it earlier, the circumstances that led to the announcement would never have occurred. Sometimes statistics will conspire to draw attention to a problem. Maybe they are trying to tell us something."

"We have to beef up our searches, which are now pretty dismal, so we can find out about these things before we get hit. … It takes a dramatic event to get people's attention, and we thought the comet crash with Jupiter might have done the job. … we tend to ignore an extraterrestrial hazard that could reduce the planet to rubble. … What we really need is a good scare."

"Two particular cross-sections, he claimed, were of special interest: first, a cross-section near the beginning of time (the creation of the world); secondly, a cross-section only slightly differing from the present. In the latter case, all those parts of the universe not in our immediate vicinity could be disregarded..."

"Jeans was not a man of many friends, partly because of his temperamental shyness and reticence and partly because of his intolerance of what he deemed to be second-rate. With his own quick perception he lacked the patience which would have enabled him to understand and appreciate a slower-moving mind and consequently he missed those intimacies which he fundamentally desired."

"He then embarked on a criticism of causality, as expressed by Kant or Bertrand Russel. He says that there is no scientific justification for supposing that the happenings of the world can be divided into detached events, and 'strung in pairs, like a row of dominoes, each being the cause of the event which follows and at the same time the effect of that which precedes.' He warned... at the same time against the other extreme... it was not necessary for all previous events in the history of the world to be considered as separate causes. For one thing, the effects of the earlier of them were already taken into account in the later..."

"What philosophical conclusions should we draw from the abstract style of the superstring theory? We might conclude, as Sir James Jeans concluded long ago, that the Great Architect of the Universe now begins to appear as a Pure Mathematician, and that if we work hard enough at mathematics we shall be able to read his mind. Or we might conclude that our pursuit of abstractions is leading us far away from those parts of the creation which are most interesting from a human point of view. It is too early yet to come to conclusions."

"He pointed out that amongst the hindrances to a joint discussion by philosophers and physicists are differences of idiom, if not language. He stated that, whether one understands the meaning of a sentence in Newton or not, one knows at least the meaning of the words, whereas philosophy has no agreed terminology. He was right in pointing out that various old problems in philosophy owed their existence to imperfections of language... he argued that the philosopher thinks and speaks in the subjective, the scientist in objective, terms."

"To be historically accurate, Hubble failed to acknowledge two of his pivotal sources for those ideas which now bear his name: Reynolds and Jeans. As agreed by Allan Sandage, the graphical representation of the Hubble tuning fork [style diagram of the Hubble sequence] must be attributed to Sir James Jeans - a scientist who adored music, and who wrote the famous book Science and Music on that theme. In the Lowell Observatory archives, Hubble revealed to Slipher that he had "been trying to construct a classification of non-galactic nebulae analogous to Jeans' evolution sequence, but from purely observational material.""

"Therefore the observer may well look to Jeans' theory for the thread of physical significance that shall vitalize a system of classification of non-galactic nebulae. In the scheme presently to be proposed, a conscious attempt was made to ignore the theory and to arrange the data purely from an observational point of view. The analogy however was so suggestive that at several points... there was no hesitation in accepting the one favored by Jeans' theory of spirals."

"Physics and philosophy are at most a few thousand years old, but probably have lives of thousands of millions of years stretching away in front of them. They are only just beginning to get under way..."