Flapping Flight

1915 ◽  
Vol 19 (73) ◽  
pp. 13-21 ◽  
Author(s):  
Maurice F. Fitzgerald
Keyword(s):  
Royal Society ◽  
Common Knowledge ◽  
Flapping Flight ◽  
Experimental Results ◽  
Present Writer ◽  
Late Professor ◽  
Limited Supply

A paper on “Flapping Flight of Aeroplanes ” by the present writer was communicated by the late Professor G. F. FitzGerald to the “ Proceedings ” of the Royal Society (Vol. 64, pp. 420-430) in 1899. At that date much that is now almost common knowledge concerning the mechanics of flight was little thought of, much less understood, practical aviation did not exist, and a limited supply of experimental results presented confusing specimens of discordant and unreliable data to the inquirer. The development, during the last eight years, of the practice and science of aviation, seems to justify a review of the paper1 of 1899 in the light of better information, and of a better understanding of the influence of head resistance and other things, ignored fifteen years ago.

scholarly journals II.—Gastaldi on Italian Geology and the Crystalline Rocks

1887 ◽  
Vol 4 (12) ◽  
pp. 531-540
Author(s):  
T. Sterry Hunt
Keyword(s):  
Royal Society ◽  
Crystalline Rocks ◽  
Present Writer ◽  
Detailed Account ◽  
Late Professor ◽  
Especial Reference ◽  
History Of ◽  
The Alps ◽  
Made In

The present writer in 1883 reviewed the history of the rocks of the Alps and the Apennines with especial reference to the geological relations of serpentine and its associates, in a paper which appeared in the first volume of the Transactions of the Royal Society of Canada, and is reprinted, revised and with some additions, as the tenth chapter of his volume entitled “Mineral Physiology and Physiography” (Boston, 1886). Therein he gave a somewhat detailed account of the labours in Italian geology of the late Professor Bartolomeo Gastaldi, of Turin, a list of whose publications on that subject from 1871 to 1878, so far as known to the writer, will there be found, including his letter to Quintino Sella, in 1878, on the general results of explorations made in 1877 (loc. cit., 458).

scholarly journals III. Action of an intermittent beam of radiant heat upon gaseous matter

1881 ◽  
Vol 31 (206-211) ◽  
pp. 307-317 ◽  
Keyword(s):  
Royal Society ◽  
Radiant Heat ◽  
Late Professor

The Royal Society has already done me the honour of publishing a long series of memoirs on the interaction of radiant heat and gaseous matter. These memoirs did not escape criticism. Distinguished men, among whom the late Professor Magnus and the late Professor Buff may be more specially mentioned, examined my experiments, and arrived at results different from mine.

Introduction

1969 ◽  
Vol 255 (800) ◽  
pp. 187-188 ◽  
Keyword(s):  
Royal Society ◽  
New Caledonia ◽  
Solomon Islands ◽  
Research Committee ◽  
Plant Geography ◽  
Late Professor ◽  
Southern Zone ◽  
Geological Setting ◽  
Plant Life ◽  
General Field

We have come to hear on these three days from as many members of the Expedition as we could assemble the results of their work in the Solomon Islands. We have the pleasure, also, in looking forward to contributions from six other scientists who, though not Expedition members, have independently added much to the exploration and study of the Solomons. We hope to enjoy the first occasion for a lengthy biogeographical discussion about the islands. This was the purpose of the Expedition set by its originator, the late Professor Carl Pantin, when he was chairman of the Southern Zone Research Committee. We owe to him and to the generosity of the Royal Society the grand opportunity we have had to visit those beautiful islands, to have explored them according to our predilections, and to be gathered here in such hospitality. Professor Pantin decided that the zoological side should be confined to marine and land invertebrata, being the groups most likely to assist in evaluating the geological connexions of the islands. To increase this aspect, and to test the results, we have the contribution by Professor Cain on the birds and of Dr Torben Wolff on the zoology of Rennell Island, which the Expedition was unable to visit. A geological setting has been prepared by Dr Thompson, which in his absence will be read by Dr Allum, who has himself investigated the occurrence and nature of faulting, particularly on Guadalcanal. Pantin left the botanists to decide for themselves and they have covered most groups of plant life, from the sea, where Dr Womersley and his assistant studied the seaweeds, to the totality of the land-flora excepting the microscopic algae and fungi. But we botanists have also invited Dr Thorne to inform to us on the remarkable differences between New Caledonia and the Solomons, as great as the differences between the British and Japanese floras, yet so much closer together. And we have invited Professor Good to put our findings in the general field of Melanesian and Malaysian plant-geography. Our sixth outside contribution is from Dr Brookfield on the new field of climatology in the Solomons. Regrettably, neither Dr Brookfield nor Dr Thorne is able to be with us.

scholarly journals IV. On the induction of electric currents in infinite plates and spherical shells

1881 ◽  
Vol 172 ◽  
pp. 307-353 ◽  
Keyword(s):  
Royal Society ◽  
Magnetic System ◽  
Finite Thickness ◽  
Infinite Plate ◽  
Infinite Plane ◽  
Exact Form ◽  
Spherical Shells ◽  
Late Professor ◽  
Electricity And Magnetism ◽  
Plane Sheet

1. In Vol. XX. (1872) of the Proceedings of the Royal Society (pp. 160-168) is a beautiful paper by the late Professor Clerk Maxwell giving an investigation of the induction of currents in an infinite plane sheet of uniform conductivity. For the purposes of the investigation the sheet is supposed infinitely thin; and when it is at rest and influenced by a varying external magnetic system, the effect of the currents induced in it is found to be equivalent to an infinite train of images, at the sheet, of the external system, which, after being formed, move off to infinity with uniform velocity. When the external system revolves uniformly round an axis normal to the sheet, the effect is shown to be the same as if the sheet itself revolved round the axis and the magnetic system remained fixed. The images will then lie in a spiral trail in the form of a helix whose axis is perpendicular to the sheet. This theory was afterwards reproduced in his ‘Treatise on Electricity and Magnetism,’ and the latter part proved directly from the equations. The analysis there given is somewhat difficult to follow, though it is doubtless possible to present it in a more logically exact form. The problem of the induction of currents has also been treated by Felici (Tertolini’s ‘Annali,’ 1853-54) and by Jochmann (Crelle, 1864, and Pogg. Ann., 1864). Jochmann has solved the case of a sphere which rotates uniformly in a magnetic field symmetrical about the axis of revolution and finds that no currents will be generated in it, but that there will be a certain distribution of free electricity throughout its interior and over its surface. He has also handled the case of an infinite plate of finite thickness, which revolves uniformly round a normal, by neglecting the inductive action of the currents on themselves, and shows that the conditions of the problem may then be satisfied by a system of currents parallel to the faces of the plate; he has also traced the forms of the current and equipotential lines in some simple cases. The solution, however, as Maxwell has shown in the case of a thin copper disc, can be true only for very small values of the angular velocity.

scholarly journals XXII. On the thermal resistance of liquids

1869 ◽  
Vol 159 ◽  
pp. 637-660 ◽  
Keyword(s):  
Thermal Resistance ◽  
Royal Society ◽  
Radiant Heat ◽  
Experimental Results ◽  
Contact Heat ◽  
The Subject

§ 1. The passage of heat through matter has been mainly examined in reference to the diathermancy of solids, liquids, and gases to radiant heat, and to the conduction of contact-heat through solids and gases. The conduction of contact-heat through liquids forms a chapter in heat transference which has not hitherto received as much attention from experimental physicists as it merits. § 2. In the following pages I have the honor of submitting to the Royal Society certain experimental results and considerations to which I have been led during an investigation of this subject. These results are necessarily incomplete. The inquiry is fraught with very numerous and considerable experimental difficulties; but I venture to hope that such as the results are, they may be found useful to those who shall hereafter pursue the subject with greater skill and more perfect appliances.

The 1869 controversy of cellular theory: Goodsir versus Virchow

2020 ◽  
pp. 096777202094273
Author(s):  
Michael T Tracy
Keyword(s):  
Mental Illness ◽  
Eighteenth Century ◽  
Medical Education ◽  
Royal Society ◽  
General Meeting ◽  
Cell Theory ◽  
Late Professor ◽  
Medical Establishment ◽  
History Of ◽  
Scientific Dispute

The Royal Society of Edinburgh (RSE) is Scotland’s national academy of science and letters and has been in existence since the eighteenth century. On 23 November 1868, a general meeting was held by the RSE at which members nominated the German academic, Professor Rudolf Virchow, as an Honorary Fellow in recognition of his key contributions to cellular theory. This nomination was opposed by the Reverend Joseph Taylor Goodsir, brother of the late Professor of Anatomy at Edinburgh University, John Goodsir. Reverend Goodsir went on to accuse the German professor of plagiarising his late brother’s pioneering work in the formulation of cell theory. The resultant furore created by the Reverend Goodsir led to an acrimonious scientific dispute in the Edinburgh medical establishment, then one of the leading centres of medical education. The current work describes the history of cellular theory as it pertains to John Goodsir and Rudolf Virchow, discusses the history behind the scientific dispute and interprets Reverend Joseph Taylor Goodsir’s role relating his actions to his continuing battle with mental illness, and the aftermath of the dispute as it affected the reputation of John Goodsir.

scholarly journals XIV. Account of the organs of speech of the orang outang. By Peter Camper, M. D. late Professor of Anatomy, &c. in the University of Groningen, and F. R. S. in a letter to Sir John Pringle, F. R. S

1779 ◽  
Vol 69 ◽  
pp. 139-159 ◽  
Keyword(s):  
Royal Society ◽  
Late Professor ◽  
The University

Sir, Being lately informed by Dr. Poemmering, whom on account of his singular industry and talents I have recommended to your favour, that you, as well as l'Abbé Fontana and Dr. Ingenhousz, were suprized to hear from M. Febroni, the keeper of the Duke of Tuscany's Museum, that I had discovered the true organical reason for which the Orang Outang, and several other apes and monkies, are unable to speak; I take the liberty of addressing to you this anatomical essay upon the organ of speech of the Orang Outang and other monkies, in hopes you will judge it worthy to be read to the Royal Society; in whose most valuable Transactions I should be very proud to see these observations; the rather, as it is the first essay I have offered to that respectable body.

scholarly journals On flapping flight

1909 ◽  
Vol 83 (559) ◽  
pp. 72-78 ◽  
Keyword(s):  
Royal Society ◽  
Flapping Flight ◽  
Constant Speed ◽  
Variable Angle ◽  
The Subject

This paper is supplementary to one by the same author published in the 'Proceedings of the Royal Society' in 1899, "On Flapping Flight of Aeroplanes," communicated by the late Prof. George F. FitzGerald, F. R. S. Towards the end of that paper, the author refers to the subject of hovering, and points out that the method of his paper does not apply, in any satisfactory way, to that case. The paper of 1899, in fact, considered the force supporting an aeroplane as due to its motion with nearly constant speed in a nearly horizontal, but slightly waved path, to which its plane was inclined at a small variable angle.

Some Experimental Results in connection with the Hydrodynamical Theory of Seiches

1906 ◽  
Vol 26 (1) ◽  
pp. 142-156 ◽  
Author(s):  
Peter White ◽  
William Watson
Keyword(s):  
Royal Society ◽  
Experimental Results ◽  
Three Dimensions ◽  
Quartic Curves ◽  
Hydrodynamical Theory

In a paper read before the Royal Society of Edinburgh, in June 1905, on the Hydrodynamical Theory of Seiches, Professor Chrystal published a number of formulæ from which could be calculated the periods and positions of the nodes of seiches in lakes of various shapes.The solutions of the most general problems, involving variations of the three dimensions, are there made to rest ultimately upon certain typical cases in which the element of breadth remains constant while the depth is some defined function of the length. In the paper referred to, formulae are given immediately applicable to lakes of uniform breadth, whose longitudinal sections include concave and convex parabolas, quartic curves, and rectilinear shapes.

scholarly journals XVI. The embryology of monotremata and marsupialia.—Part I

1887 ◽  
Vol 178 ◽  
pp. 463-486 ◽  
Keyword(s):  
Royal Society ◽  
Late Professor ◽  
The Government ◽  
Government Grant

In 1882 the late Professor F. M. Balfour suggested my undertaking the study of the development of the peculiar Australian Mammalia and Ceratodus . In 1883 I decided to carry out this suggestion, and was elected to the travelling studentship founded in Balfour’s memory. The Committee of the Royal Society appointed to administer the Government Grant for the endowment of research gave me a sum of £400 for equipment.

Sign in / Sign up

Export Citation Format

Share Document