Showing posts with label Proceedings. Show all posts
Showing posts with label Proceedings. Show all posts

Thursday, 30 April 2009

From the *real* Proceedings: Dangers of Being a Female Spider.

Occasionally, one finds an article outside of one's field of interest, yet requiring attention. This is one of those articles:

Řezáč M. The spider Harpactea sadistica: co-evolution of traumatic insemination and complex female genital morphology in spiders. Proc. R. Soc. B. Published online before print. April 29, 2009, doi:10.1098/rspb.2009.0104

Abstract available here.

This comes via Proceedings "B", the biological sciences journal of the Royal Society in London. (Not to be confused with the Caledonian institution of a similar name.)

Readers with reasonable short-term memory may recall a similar story regarding the mating practices of giant squids, referred to in a prior posting ("Rough sex at 40,000 leagues under the sea.")

Once again, allow me to state my great joy in being a mammal.

--

More available from the BBC: "Spider sex violent but effective."

Saturday, 4 April 2009

Good news for catgirls and evil tiny kitties alike.

In a recently-published article in the Proceedings of the National Academy of Sciences, researchers from the University of Wisconsin-Madison show that cats' central nervous system can repair itself, restoring function lost to neurological disease.

Duncan ID, Brower A, Kondo Y, Curlee JF Jr, Schultz RD.
Extensive remyelination of the CNS leads to functional recovery.
Proc Nat Acad Sci 2009; published online before print April 2, 2009.
doi:10.1073/pnas.0812500106. (link goes to the abstract; full text available to subscribers)

A less-weighty discussion of the paper is found at Science Daily: http://www.sciencedaily.com/releases/2009/03/090330200722.htm

This, to me, is brilliant news, especially for the felines among us.

Catgirls: have you noted a decrease in your mental faculties after long sessions of dancing and catnip exposure?

Evil Tiny Kitties: have you longed for a way to reverse the effects of all those neurotoxin experiments gone terribly wrong?

I'm happy to post any anecdotal results to add to the literature.

Saturday, 28 February 2009

200+ years ago in the real Proceedings

 
The Royal Society (the scientific academy of the UK, not the Second Life organisation of a similar name) have been publishing scientific findings since 1665. That its journals have hosted an astounding array of seminal discoveries is praise enough, but there is new reason to laud on the Society.

The publishing section (curiously named "Royal Society Publishing") announced that until the end of March 2009, all content (even back to 1665) is open to the public, to celebrate their move to a new content-delivery system.

All content free for another month: I shall pause for a moment to allow my readership to catch its collective breath.

Their understated list "Featured Articles" has a few entries from Isaac Newton, Edmund Halley, Alexander Volta, Edward Jenner, and J. Clerk Maxwell.

Naturally, I dove in to catch up on some back-reading.

In doing so, I came across several entries that seemed apropos given the recent increase in interest in minerals and metallurgy across the Commonwealth associated with the East Avaria Company goings-on.

John Hawkins
Account of the Discovery of Silver in Herland Copper Mine.
Proc. R. Soc. Lond. January 1, 1800 1:42-43.


Of a Peculiar Lead-Ore of Germany, and the Use Thereof.
Phil. Trans. January 1, 1665 1:10-11.


Charles Hatchett
An Analysis of a Mineral Substance from North America,
Containing a Metal Hitherto Unknown.
Phil. Trans. R. Soc. Lond. January 1, 1802 92:49-66.
(open the image for a better view, or follow this link to the full-text PDF)
I suspect now I must comb all the back issues for information on what one can do with mushrooms, as well.

Sunday, 4 January 2009

Salinity Data for Caledonian Waterways.

A conversation on Caledon state chat yesterday raised the question of whether a certain body of water in Caledon was fresh, brackish, or seawater.

Fortunately, a prior field expedition which surveyed waterways around the Independent State had also collected surface salinity data. These results had been unpublished (and not updated after recent cataclysmic tectonic activity), but seeing as how at least one of our citizens would find the information useful, I exercised my editorial powers to publish the data without their as-yet-unfinished analysis.

This illustration shows the surface salinity in parts-per-thousand, mapped on a spectrum from green (fresh water) to blue (sea water). Brackish water is defined as having a salt concentration of 0.5 to 30 parts per thousand.*

A cursory view shows that the Independent State is fresh-water replete in areas with higher elevation. The Firth tends toward mild brackishness towards the east, and more pronounced to the west and the open sea. Lower-lying areas show a more-rapid increase in salinity as a function of distance from shore.

Limitations of these results include a lack of sampling at depth, no correction for water temperature, and a lack of readings across time (meaning that any diurnal or seasonal variations are unknown. The Winterfallen waters north of Caledon remain unstudied.

Readers wishing some advice on which fish ought to be introduced to a nearby stream, which plants may flourish at a given location, or simply where to refill one's canteen may find this map useful.

Regrettably, a lack of grant funding current prevents further data collection or analysis, at least at present.

* The actual phenomenon being measured is not salinity but rather halinity, a measure of the halide content of water. This should not be confused with conductivity (measuring the ionic content of water), or turbidity (measuring the particulate matter content), though each of these measurements overlap to some degree.

Wednesday, 13 August 2008

Editorial: Instability of Saint Kitt Islands.

Recently, I began a review of the Tunguska Event, a cataclysmic explosion which leveled thousands of square kilometres of Siberian forest. The initial lack of attention paid by the scientific community, due to the remoteness of the disaster and relatively low loss of life, belied the severity of the event.

More recently, I have been informed that certain parties have deemed Saint Kitt Islands to be safe for general public activity. I am afraid that the available data do not support such a conclusion, and that over-confident reliance on such advice may result in terrible loss.

I would refer the reader to another August, just a few years back, in 1883, when the island of Krakatoa between Sumatra and Java detonated with world-wide effects. Tsunamis were observed throughout the neighbouring coasts, as far away as South Africa. Wave height monitors recorded fluctuations from the event in the Thames. Noctilucent clouds were observed from the ejecta, as with Tunguska.

The data that Professor Krogstad and I gathered predict that significant seismic activity is not only possible, but is imminent.

Saint Kitt Islands were formed from volcanic activity resulting in an island and atoll. The weathering patterns on the volcano itself suggest a young age, perhaps under 50 years. Seismic activity predicts potential surrounding activity, consistent with known patterns of island-building volcanic activity. Seawater temperatures surrounding the island (unpublished data) point towards other submarine volcanic activity in the area. Further geophysical studies will be required to determine the amount and extent of landmass building that has occurred in the region.


Krogstad A, Nicholas K. A biologic and geologic survey of Saint Kitt Islands. Proc Royal Soc 1898 ; 5.

At the time of the initial survey, the cauldron was quiet, and no evidence of volcanic activity was apparent. Even the casual lay-observer on St Kitt now can see the evidence of accelerated instability from the volcano and surrounding sea bed.

Based on the available evidence, allow me to illustrate my prediction for the very near future of our beloved crown colony:






I shall be in contact with the Guvnah straightaway, and I will urge the public not to congregate on or near Saint Kitt Islands, for fear of a disaster of eschatologic proportions.

If any reader wishes to see the raw data upon which these recommendations are based, please contact me at your leisure.

In assistance to Caledon, I remain,
your humble servant,

Kate Nicholas, FRS

Thursday, 22 May 2008

In Search of ... Fungus!

On behalf of myself and Mr JJ Drinkwater, I would like to announce the collaboration of the Caledon Library and the Royal Society for the Advancement of Knowledge in the Natural Sciences in the matter of cataloguing our surroundings.

A recent article reported by the BBC, "Rare lichen find a European first" shows that the Real World still holds some secrets of nature waiting to be discovered. Our Second World is no exception, as new reports of Caledonian flora and fauna have been surfacing in recent days.

Please join us in our efforts; consider yourselves deputised to the office of Field Scientist, ready to relay your observations from the wild.

If you come across any novel plant or animal life in the Independent State of Caledon, or in the surrounding regions of Winterfell, Brythony, or Lovelace, please collect the following data:
  • location
  • time and time-of-day (e.g., dusk, mid-day, &c)
  • description of surroundings
  • effects on self or others (including physiologic effects of ingestion)
as well as some visual representation of your find (tintype, daguerreotype, cinematograph, Kirlian photogram, transmission electron photomicrograph, or what-have-you).

Please forward your findings to the Royal Society, via note-card addressed to yours truly. Discoveries will be posted (with due credit to the submitter) on the ætheric edition of the Proceedings of The Royal Society (http://ProcRoyalSoc.blogspot.com).
Please see the Caledon wiki for a collection of descriptions: http://www.caledonwiki.com/index.php?title=Shrooms .

Mr Drinkwater and I, and our learned colleagues, are greatly excited about this new era of promotion of the natural sciences – and equally excited to share the thrill of discovery with every Caledonian. Just think of it: might yours be the next discovery to make headlines?

With best wishes in your endeavours,
I remain,
Yours sincerely,

Kate Nicholas, FRS

Friday, 14 March 2008

Failure analysis of the Loch Avie Cryogenic Seasonal Support Engine

Nicholas K, Bellambi E. Failure analysis of the Loch Avie Cryogenic Seasonal Support Engine (CSSE). Proc Royal Soc 1898;3.

Abstract.
The Loch Avie Cryogenic Seasonal Support Engine (CSSE) unexpectedly failed in February 1898, with resultant thermal destabilisation of the terrain. This analysis was conducted to determine the cause of failure, as well as to identify other potential failure modes of the engine. The root cause appears to be geothermal anomalous events triggered by plate tectonic movements. Various preventative strategies are discussed.

Background.
The CSSE was implemented during the current winter season in Caledon to support and enhance the ground and air temperature cooling needed to ensure persistent snow cover (maximum -3.5 degrees Centigrade) and precipitation occurring as snow (maximum -2.2 degrees C.) The system exhibited a meta-effect of allowing shallow-water ice to form to depths of up to 1 metre. (Fig. 1.)





The system was controlled from a certain location within Loch Avie. Electromagnetic relays were used to control various aspects of the system. Coolant temperature, flows, and hydraulic pressure were measured at the control panel. (Fig. 2.)





At various locations around the Loch, coolant pipes were exposed to the water and atmosphere to enable convective heat exchange to occur. Figure 3 demonstrates one such submerged pipe.



Note that the combination of the amount of dissolved solutes and particulate matter in the Loch water have dropped the freezing point to below the coolant temperature, as no ice build-up is seen. (Fig. 3a.)


Figure 4 demonstrates one of the above-ground heat-exchange mechanisms, which were used in tandem with the exposed pipe apparatus used for submersible cooling.

The details of the design of the cryogenic plant itself, and the method for dissipating heat from the system remain classified, as they were commissioned originally for The Security Service (Box 500, Loch Avie, Caledon).

System failure.
During the week of February 21, ambient air temperatures and soil temperatures began climbing by an average of 0.17 degrees C. per day, from their prior stable baselines of -3.5 and -2.2 degrees C. respectively. Snow cover began to dissipate immediately due to solar heating, and new precipitation fell as rain and freezing rain by February 26. By the first week in March, existing snow cover had vanished, and there was no contiguous ice remaining on the Loch.

During the warming event, the cryogenic fluid production remained constant, with nominal temperatures. (Fig. 5.) Readings from the heat dissipation system showed increasingly-warmer effluent.







Flow and pressure monitors recorded no pressure drops or coolant leaks. (Fig. 6.)


Analysis.
The data support that the system encountered increased ambient heat which could not be effectively dissipated, resulting in increasingly less-efficient cooling. While available readings from surrounding areas are scant, the data suggest increased energy deposition into the air, water, and soil. Electromagnetic (EM) sensors did not indicate any change in background EM or radio-frequency energies. Seismic readings, though, showed low-level activity beginning and increasing in a temporally-associated fashion with the warming event. One hydrothermal vent which is routinely monitored indicated increased output of geothermal energy.

Conclusions.
The CSSE failure was a result of its heat-exchanging system being overwhelmed by an unusual increase in hydrothermal energy. The increase in seismic activity in the area is the most likely etiology. The CSSE operated as designed, without any loss of system integrity . Based on the system design, and the observed mode of failure, the CSSE failed safely. The design could not have been modified on-line to accomodate the increased need for heat dissipation. The authors recommend that the system, now off-line, be re-engineered to increase heat transfer and dissipation, and that seismic monitoring be instituted to allow for better prediction of the need for increased efficiency. Finally, a further study of the unusual seismic events should be undertaken, as the increased geothermal activity provides demonstrable evidence of a change in tectonic interactions.

Sunday, 30 September 2007

Update in Anthropology, and an Editorial

 

Bones of the Romanovs.

The BBC have reported that Russian scientists have made preliminary identification of remains found in July, stating that they were highly probably those of Alexei and Maria, children of the last Tsar, Nicholas II.

The remains were found in Ekaterinburg, the location of the execution of the Royal Family. The remains of the family, along with their servants, were found in 1991, in a concealed pit north of the city. Two individuals were missing from the original site, however: the Tsarevich Alexei, and one of his sisters.



The identity of the remains was aided by DNA testing from members of the British royal family. Recall that the Tsarina Alexandra was Princess Alix of Hesse and by Rhine, the granddaughter of Queen Victoria. Prince Philip, Duke of Edinburgh, is the grandson of Alexandra's elder sister Victoria, Marchioness of Milford-Haven; Philip provided the DNA sample for comparison.

The new finding should bring some closure to this question, that of the missing Tsarevich and his sister. In 1998, the then-identified members of the family were laid to rest in the St Catherine Chapel in the St Peter and Paul Fortress in St Petersburg. Nicholas, Alexandra, Olga, Tatiana, and Anastasia may now be joined by their lost kin.


Russian Victoriana.

For a Caledonian readership, perhaps more well-versed in the names and faces of the British Empire, a few points of reference are in order. Queen Victoria's progeny were found throughout the European noble houses; one of the well-known manifestations was the spread of haemophilia from her gene defect.



Several extant photographs show the Queen with her granddaughter Alix and Nicholas Romanov.


Alix in Coburg Summer 1894 with (left, seated) Kaiser Wilhelm; her fiancé the Tsarevitch Nicholas; Queen Victoria


Queen Victoria, Tsar Nicholas II, Alix and Olga, Prince of Wales, Balmoral 1896


"Tsar-Martyr".

After word spread of the execution of the Tsar, a popular cultus that developed around Nicholas. The so-called Tsar-Martyr was invoked in prayer and featured on icons. A hagiography is detailed here, with numerous accounts of supernatural events associated with Nicholas.




In 1981, the Russian Orthodox Church Outside Russia (one of the portions of the Church formed in exile after the Bolshevik revolution) elevated the Tsar and his family to sainthood, as 'passion-bearers' (страстотéрпец, strastoterpets) -- not martyrs in the Western sense, but rather ones who faced their end with faith. After 8 years of further debate, the Russian Orthodox Patriarchate recognised the family as passion-bearers as well. This was not without some dissension; Nicholas' legacy of rule was not entirely glowing, and arguably contributed to the downfall of the Russian Empire. Proponents argue that, his policies notwithstanding, his personal piety was exemplary.


An editorial.

Somewhat out-of-character, I will offer a few thoughts on this recent update to the Romanov history. There are a few historical events which, when I learned of them in childhood, seemed to have a particular indelible and resonating quality. The murder of the Romanovs was one of those. No one wishes to dwell on disaster or evil, but there was just something about the story that begged for re-telling and re-reflection.* The tragic ending of the lives of the Tsar and his innocent family in a cellar at the hands of a Bolshevik firing squad is one of those pieces of history that cannot be un-seen, once seen in the mind's eye. Part of me has always been deeply moved and troubled by the image of the haemophiliac Tsarevich, the innocent Grand Duchesses, and the non-Russian-born Tsarina sharing the fate of the head of the Empire. Even if one reckons the Tsar's fate to be similar to that of a captain of a sinking ship, the fate of the rest of the family was an unusually cruel one.



So, on to the canonisation, and the associated difficulties. The despicable slaughter of the Romanovs holds just as much weight as that of all the nameless who suffered during and after the revolution. There were many more Anastasias than the Grand Duchess killed by the Bolsheviks and the Soviets. Does one slight the nameless when one reverences the now-sainted Romanovs? I would like to think the two are separated, the so-called New Martyrs and the royal passion bearers. Certainly they are separated theologically**, but on a humanist level, perhaps the Romanovs serve as a touchstone, a symbol, of the brutality of one group against another.

Regardless of my reader's spiritual and/or religious beliefs, I would put forward that, with this new reminder of the events of 1918 in Ekaterinburg, we strive to remember all such victims of violence -- and there are no lack of examples, from one's doorstep out to the ends of the earth.

I appreciate the reader's indulgence in matters more philosophic than scientific in this editorial, and will return the Proceedings towards more science in the near future.


--
* Note the particular interest in the stories surrounding the loss of 1490 lives in the North Atlantic when Titanic sank.
** Theology is quite beyond the scope of this periodical. Interested readers may contact me directly for references to the appropriate sources.

Sunday, 27 May 2007

A report on initial experience with sculpted prims.

 
 
Nicholas, K.   "A report on initial experience with sculpted prims."  Proc Royal Soc  2007; 2 (advance communication ahead of printing).


Abstract.
Availability of sculpted primative constuction allows for a greatly-expanded repertoire of objects for the builder. Preparation of the sculpted prim is nonintuitive, and requires additional methods and skills that may not be readily available. Further work is suggested to improve access to sculpting methods. Proceeds from the sale of the developed sculpted-prim glassware should go towards future research and development of sculpting methods.


Background.
Constructing a primitive object (prim) has to this point required little in the way of preparation or skills beyond that required for day-to-day existence. Linden Lab have added an option to transform a prim into a unique shape based on a map of sorts (Fig. 1). Construction of this map is nonintuitive, and requires what appears to be a fair amount of mathematics
to translate a three-dimensional representation into this color-based map.


Fig. 1. Color-map of an object.

Methods available to perform this conversion require a knowledge of three-dimensional artistry, and an investment in the tools. One tool requires a L$ 1,820,000 capital outlay (1). Less-costly tools are available, with varying degrees of utility, and are detailed elsewhere (2).


Methods.
Using the "Rokuro" software (3), a series of maps were created to model common laboratory glassware (the first objects available for study). Eleven items were created; five were solid objects, and six attempted to recreate the hollow nature of actual glassware (Fig. 2).


Fig. 2. Hollow versus solid objects.


The object maps were loaded on to the beta grid for testing. All objects were given a standard glass texture (without any alpha channel), set to 30% transparency, with low reflectivity and "brightness" bump-mapping settings (Fig. 3).



Fig. 3. Texturing parameters.
(See text for 'A' and 'B' discussion.)


Results.
Creating the object maps via the lathe tool took on the order of 5 to 10 min per object, trending towards the lower end as the author gained facility with the method.

Figure 3 shows the different effect seen with hollow ("A") and solid ("B") prims. At a uniform level of transparency, the solid prims provided a more life-like outer appearance, with the hollow objects showing a penumbra, and the solid objects presenting a clearly-defined outer edge.

Figure 4 shows the glassware on a different background; figure 5, with different lighting (sunrise), and figure 6, at night, using only ambient lighting.


Fig. 4.



Fig. 5.



Fig. 6.


Conclusions.
Simple sculpted primative construction is within the ability of the average-to-advanced builder, using very specific tools, and and access to the beta grid for testing. Glassware emulation produces reasonable results, though the correct, hollow representation of vessels produces a somewhat-indistinct outer edge. No attempt was made to optimise texture methods, and it is acknowledged that texture map creation for sculpted prims is difficult (4). Further research is required to maximise the utility of sculpted prims; furthermore, more available (and accessible) tools for builders are required.

Advertisement.
All of the glassware will be on sale at the offices of the Royal Society, in Tamrannoch, Caledon. These will be priced at below-upload-cost, with the set of 11 pieces sold at L$100. Naturally, proceeds from the sales will fund futher sculpting methods.

Acknowledgements.
The author is supported by a new-materials grant from the Duchy of Loch Avie (LA-21-003), and by viewers like you. She has no industry support or conflict of interest to disclose.

Footnotes.
(1).   Autodesk Maya (ex-Alias|Wavefront, ex-Silicon Graphics) was sighted at US$ 6999. Linden Lab's current officially-suported sculpted prim import pathway (singular) is for Maya.
(2).   Building forum, secondlife.com. Accessed repeatedly, often to little avail.
(3).   Jewell, Y. Rokuro (lathe) http://www.kanae.net/secondlife/ Accessed 25 May 2007.
(4).   Krogstad, A. Personal communication.

Saturday, 12 May 2007

Initial Report: Analysis of a ship-wreck off Loch Avie.



Nicholas K, Krogstad A. "Analysis of a ship-wreck off Loch Avie." Proc Royal Soc 2007; 2 (advance communication ahead of printing).



Abstract.
The discovery and analysis of the site of a wrecked submersible in the littoral waters off the Duchy of Loch Avie are reported. Findings support that a submersible vessel, likely under steam power, suffered a catastrophic boiler failure. The wreck is relatively recent, and the lack of crew remains suggests an autonomous vehicle. Further studies are ongoing regarding the origin of the vessel, and details of its control mechanisms.

Background.
No reports currently exist regarding any underwater archæological sites in Caledonian waters. The experience of one author (KN) during the Caledon Hydrographic Survey suggests that, as of January 2007, there were no identifiable wrecks in surveyed areas, and a more-detailed exploration of Loch Avie in conjunction with the study of Nessie the Loch Beastie (1) revealed no wrecks in or around Loch Avie.

Despite ongoing civilian and naval traffic, there are no reports of loss of ships, impediments to navigation, or damage to vessels that may occur during inadvertent collisions with submerged wrecks.

As well, there has been no reported seismic activity in the area that may either expose wrecks previously buried under silt, or produce rogue waves that may be a hazard to ships.

Discovery of the site.
The site was initially discovered by one of the authors (AK) while doing sediment testing on the sea floor. One sample container was retrieved containing several pieces of coal; the Caledonian strata are not known to contain anthracite. The authors returned to the site in the Royal Society's submersible (fig. 1) to ascertain the source of the coal.

















Starting at the location the coal was found, a standard search pattern (βουστροφηδόν) was begun, in 10m wide rows. Visibility was estimated at 15m at the surface, and 10m at depth. Measurement of the sub-surface currents were in line with prior observations (2), with a 1 m/sec (0.1 Sievert) current at the bottom. A 2-degree-Centigrade thermocline was present at 12 m depth.

The bottom was at 21 m depth, and fairly uniform across the search pattern. It consisted of the typical sedimentary deposits, without evident rock outcropping or other features. No flora or fauna were identified, save for ubiquitous plankton in suspension.

The first evidence of the wreck site was the finding of a screw-and-shaft mechanism, partially buried in silt. (Fig. 2.) The screw was toroidal, with a 50-cm estimated radius, and appeared to be brass or copper. The survey course then continued east-north-east at 80 degrees, along the visible axis of the debris field.

















A field of lump coal was found to the east of the propeller, with an approximate 10 m diameter spread. The coal was visibly similar to the originally-extracted specimen, and consistent with fuel coal used in coal-fired steam plants. (Fig. 3.)

















Beyond the coal field came larger debris pieces. Multiple metallic shapes were scattered along the debris field axis, buried in silt to various degrees. No identifiable structures or components were among the pieces. (Fig. 4.) The metal was of uniform make-up, averaging 5 cm thick, and without paint or markings. Edges of the fragments were curled and deformed; where an interior/exterior differentiation was noted on the fragments, the deformity trend was from in- to outside. The pieces ranged from one to 3 m in diameter. Application of the external magnetometer revealed the fragments to be uniformly ferrous.


















There was no evidence of oxidation or combustion on any of the visible fragments. A failure of the on-board under-silt sounding apparatus prevented locating any obscured pieces, though the magnetometer did detect signal changes under silt.

The four largest pieces formed an axis of 110 degrees, to the east-south-east, turning right from the initially-seen debris field direction. (Fig. 5.) Absent from this section of the site were any smaller (sub 1 m) items. No encrustation of the debris was noted, and no plant or animal life was noted in the vicinity of the wreck. Gieger counter readings were consistent with background radiation.

















Proceeding along the secondary debris field axis, the largest piece of the wreck was found approximately within 10m of the eastern-most portion of the debris. (Fig. 6.) A single metallic object, 15 x 2 x 3 m, with a cylindrical protrusion 1 x 1 x 3 m in the mid-section, was lying on the silt, aligned nearly due east. The eastern end was conical, and partially buried in silt. The western end was severely deformed, again with an in-to-out orientation of damage. The interior of this largest piece was open to the sea, but a combination of metal damage and sediment prevented close inspection. However, certain interior features were noted. A plane of metal consistent with diamond-plate decking was evident, along with several pipes, levers, and gear assemblies. No biologic matter was noted, neither human remains, nor expected sea life. The cylindrical feature on the hull was consistent with a sail and hatch, and was rotated nearly perpendicular to the sea floor.

















Discussion.

Taken together, these findings are most likely the remains of a submarine vessel. Based on the forward section, the estimated size would have been 25 x 3 x 2 m, with the hatch just forward of amidships, standing at 1 m above the hull. No diving planes were seen; however, it appears that some portion of the wreck has been covered by silt, probably at the time of initial impact with the sea bed. Based on the presence of coal, and the fragmentary remains of the stern, the craft was likely under coal-fired steam power, and suffered a boiler explosion. Due to the relatively compact east-west dimensions of the debris, the vessel was likely stationary at the time of the engineering catastrophe. When the boiler exploded, the aft end of the vessel ruptured, ejecting the coal stores, and sending the shaft-screw section aft. Due to the lack of apparent impact damage, or deep embedding in silt, the vessel was probably close to the bottom, estimated at 15 m depth. The fast undersea current at the site helps provide some timing on the loss of the craft; significant time had not passed between the wreck and its discovery, as there was not appreciable dune formation on the up-current end of debris. The lack of remains (human or otherwise) with this time frame raises the possibility that the vessel was under autonomous control (3). The data do not support further conclusions regarding the method of operation, or origin, of the craft.

Summary.
A submarine craft was lost off the southern coast of Loch Avie some time between January and May of the current year, likely closer to the latter. It may have been un-manned, and suffered an unrecoverable hull failure after steam plant explosion while at depth. No evidence exists as to the origin, nature, or type (civil versus military) of the ship. Metallurgical analyses are currently being conducted, and a second expedition to explore the interior of the hull is planned.


Footnotes.
(1) Nicholas K et al. Proc Royal Soc 2007; 1.
(2) Krogstad A. Unpublished data 2006.
(3) Bell L et al. The speed of post mortem change to the human skeleton and its taphonomic significance. Forensic Sci Int 1996; 82(2):129-140.

Monday, 1 January 2007

Happy new year. Also: a new issue of the Proceedings.

On behalf of the entire Society, I would like to wish all of our supporters a Happy New Year. And personally, I will extend thanks to our fellows (Mme. Bellambi, Mr. Krogstad) and our members, who have greatly advanced both scientific knowledge as a whole, and the Society in particular.

We have released the latest (actually the first, for those keeping count), issue of the Proceedings of the Royal Society. One may obtain a copy at the offices of the Society in Tamrannoch, Caledon.

Of particular interest is Mme. Bellambi's work on documenting the history surrounding the newly-discovered aquatic animal that has taken up residence in Loch Avie. Thanks to Her Grace, Duchess Flasheart, the Society was given free rein to survey the Loch, with particular attention to the beast, who has been dubbed "Nellie."

One may expect a display of the results of the expedition at the Society offices in the forthcoming days.

I am looking forward to the new year, and towards an increase in the scholarly activity of the Society. Abstracts of scientific work may be submitted to me at any time, for publication in future issues of the Proceedings.

I wish you the best of luck with your upcoming endeavours, and I await the many outstanding achievements that are, no doubt, to come from the Society.


Regards,

Kate Nicholas, F.R.S.
President