Slow Chat

Windy_Skies · March 15, 2023, 12:48am

https://www.reddit.com/r/MachineLearning/comments/11rc02e/news_openai_announced_gpt4/

PierreB · March 15, 2023, 5:44am

I guess that as soon as the format issues have been resolved by putting LaTex code between two $, @AweEnthusiast John’s two posts on AI will return to the top of their respective topics with comment(s), where they were, having no reason more to be on Slow Chat…

Indeed, it is only a matter of $.

Windy_Skies · March 15, 2023, 7:57am

GPT-4 Khan Academy In Depth Demo

Windy_Skies · March 15, 2023, 8:27am

Let’s focus on the first topic. It has multiple obvious issues that anyone should be able to notice. Can you explain to the reader what the most important ones are?

Writing for an audience you have to extend courtesies to make your text more easily digestible and the statements in it verifiable. Too many of them were not extended here to let the topic stay as it was. They can try again, within reason.

Windy_Skies · March 15, 2023, 9:58am

GPT 4: Full Breakdown (14 Crazy Details You May Have Missed) - Last One is Extra Wild

Windy_Skies · March 15, 2023, 12:54pm

ChatGPT:

I would like to generate electricity by pulling train locomotives with kites. Assuming the technology works, what would I need to do get my trains on the U.S. rail network?

Generating electricity by pulling train locomotives with kites is an innovative idea, and there may be some potential for its application in certain contexts. However, there are several factors to consider before attempting to introduce this technology on the U.S. rail network.

Firstly, it’s important to note that the U.S. rail network is heavily regulated, and any new technology or equipment would need to meet certain safety and operational standards. You would need to conduct a thorough review of the existing regulations and determine whether your technology meets the necessary standards.

Secondly, you would need to obtain approval from the railroads that operate on the network. The railroads are private companies that own and operate the majority of the rail network in the U.S., and they may have their own safety and operational standards that need to be met. You would need to engage with the railroads and provide them with information about your technology, including how it works and how it would integrate with their existing operations.

Thirdly, you would need to conduct a pilot test of your technology to demonstrate its viability and safety. This would likely involve working with a railroad to conduct a limited trial of your technology, during which you could gather data and feedback from the railroad and other stakeholders.

Finally, you would need to secure funding to develop and implement your technology. This could involve seeking grants or other funding opportunities from government agencies or private investors.

In summary, introducing a new technology like kite-powered train locomotives on the U.S. rail network would require careful planning, engagement with stakeholders, compliance with regulations and standards, and significant investment.

Please tell me all you know about track access fees.

Track access fees are fees charged by railroad companies to other companies that wish to use their tracks for transportation. These fees are charged on a per-mile basis and can vary widely depending on a variety of factors, such as the type of cargo, the volume of traffic, and the distance traveled.

Track access fees typically cover the use of the tracks, signaling systems, and other related infrastructure. In addition, railroads may charge fees for other services such as loading and unloading cargo, storing equipment, and providing access to facilities such as intermodal yards or transloading facilities.

The specific fees charged for track access can vary depending on the railroad company and the specific circumstances of the shipment. Fees may be negotiable, and shippers may be able to obtain discounts for larger volumes of cargo or for long-term contracts. In addition, some railroads may offer incentives for shippers who are able to operate their trains in a more fuel-efficient or environmentally friendly manner.

Railroad companies typically determine track access fees based on a variety of factors, including the cost of maintaining and operating the tracks and other infrastructure, the level of demand for track access, and the competition from other railroads and other modes of transportation.

In the United States, track access fees are regulated by the Surface Transportation Board (STB), which is an independent federal agency responsible for overseeing the railroad industry. The STB has the authority to review and approve the fees charged by railroad companies to ensure that they are reasonable and not discriminatory. Shippers who believe that they are being charged unreasonable or discriminatory fees can file a complaint with the STB for review.

In summary, track access fees are a key cost component of using the railway network for transportation, and they can vary widely depending on a variety of factors. Shippers who are interested in using the railway network should be aware of the specific fees charged by the railroad companies and be prepared to negotiate these fees to obtain the best possible terms for their shipments.

Please write a very long article about abandoned railway lines for someone who would like to make use of them to test a new technology.

Abandoned railway lines offer a unique opportunity for entrepreneurs and innovators to test new technologies and develop new business models. These unused tracks are often available for purchase or lease from the railroad companies that own them, and can provide an ideal testing ground for a wide variety of innovative projects.

One potential use for abandoned railway lines is as a test bed for new transportation technologies. For example, companies developing new types of autonomous vehicles or drones could use the tracks to test their systems in a controlled environment, away from the risks and uncertainties of public roads. Similarly, researchers developing new propulsion systems for trains or other modes of transportation could use the tracks to test their technologies in a real-world setting.

Another potential use for abandoned railway lines is as a site for renewable energy projects. The tracks and surrounding land could be used for the installation of solar panels, wind turbines, or other types of clean energy systems. In addition, the abandoned rail infrastructure, including bridges and tunnels, could be repurposed for hydroelectric power generation.

Abandoned railway lines could also be used as a site for innovative recreational and tourism projects. For example, the tracks and surrounding land could be developed into a bike or hiking trail, providing a new and unique outdoor experience for visitors. Similarly, the tracks could be used for the development of railbike or railcart tours, offering a novel way to explore the local countryside.

The use of abandoned railway lines for testing new technologies and developing innovative projects is not without challenges. For example, the tracks may require significant repairs or upgrades before they can be used, and the cost of acquiring or leasing the land and infrastructure can be substantial. In addition, there may be regulatory or legal barriers to using the tracks for certain types of projects.

However, with careful planning and collaboration with local stakeholders and government agencies, these challenges can be overcome. Entrepreneurs and innovators who are interested in using abandoned railway lines for testing new technologies or developing innovative projects should consider working with local economic development agencies or other organizations to identify opportunities and navigate the regulatory and legal landscape.

In conclusion, abandoned railway lines offer a unique opportunity for entrepreneurs and innovators to test new technologies and develop new business models. Whether for transportation, renewable energy, or recreational purposes, these unused tracks provide a valuable resource that can be repurposed to support new and innovative projects. With careful planning and collaboration, abandoned railway lines can be a valuable asset for communities and businesses looking to build a more sustainable and innovative future.

Freeflying · March 15, 2023, 5:54pm

There somewhere like this where I live? About 100 track miles of of former London and southwestern railway track? It forms part of the castleman corkscrew? It could connect to Christchurch, brockenhurst, sailisbury, Poole, and the old Somerset and Dorset line? Vai Wimborne. I had asked a Mp if we could rebuild it? There are a few major obstacles? However not impossible to overcome with the right know how? I’m also aware of an update to the atmospheric railway

That could be totally green energy?
I suggest having the castle man corkscrew as a test bed for green railway technology? Ive walked parts of the old track bed. There is room to add extra stops? Moors valley and ferndown industrial estate? Even west moors, three legged cross? On the sailisbury spur? I wanted it for the railway preservation front? But had a mind for some way to run green energy locomotives? Sir Christopher Chope mp. I bet there are many potential site globally that could be brought into service?
@Windy_Skies chatGTP seams to think like I do? Funnily enough?
I haven’t the resources myself but with the right investors? The uk can have a test bed or two? @Rodread might be a few places up near you? If I remember my railway history right? Pretty sure there a old whiskey line that could be used? Kite powered railways? A very neat idea? Just get past the planners will be tricky? Hijack something remote and it might work?
There one railway that needs saving it doon valley? Due to the landowner selling? £25000 needed? But you might be able to wangle a deal? That service a few purposes?

So yes. There are options? Even old dock lines? Kite boarder kites would spice things up? Especially with direct transfer of electricity? It almost a dream come true? Just depends what your looking for?

AweEnthusiast · March 16, 2023, 6:32pm

Closely related but not exactly the same thing-

Lattice waves travel along the kite train line.
Metachronal waves travel along the kite train tails.

(56) 50 Kite Train - but not for long! - YouTube

Windy_Skies · March 19, 2023, 9:59am

AweEnthusiast · April 3, 2023, 5:36am

1kt tension at 10m/sec = 1GW

PierreB · April 3, 2023, 7:53am

Power(watts) = F(newtons) X V(m/s).
1kt tension at 10m/sec = 98.0665 MW (almost 100 MW).

What is the point of this topic?

Windy_Skies · April 8, 2023, 10:48pm

Practical experiments with tethered balloons and kite balloons from 1885:

[Annual Reports of the Aeronautical Society of Great Britain vol. 22] - Kite Balloons and Kite Tandems (1890).pdf (1.0 MB)

[Scientific American 1897-jul 03 vol. 77 iss. 1] - Parseval’s Kite Balloon (1897).pdf (216.1 KB)

Windy_Skies · April 9, 2023, 12:07am

[Scientific American 1899-dec 02 vol. 81 iss. 23] - The Lecornu Cellular Kite (1899).pdf (627.1 KB)

THE LECORNU CELLULAR KITE.

There is no amusement more fascinating, more instructive or more easily engaged in by everybody than kite-flying. Although it is much in favor on the other side of the Atlantic, it is yet too much neglected in France. Almost everywhere in the United States, there are to be found kite clubs analogous to the French bicycle and photographic societies, and which are in the habit of organizing competitions of various kinds. It is a great pity that the sport is not indulged in in France as much as it deserves to be, for the kite is a wonderful apparatus, of which a host of curious and interesting applications may be made. It is almost without a rival for the study of atmospheric electricity and for topographic photography. It may be employed as a life saving and signaling apparatus, for the practice of wireless telegraphy, for the study of meteorology, and even, as with the balloon, for making ascensions. The ordinary kite is familiar to every one. Whatever be its form, lozenge-shaped, rectangular, elliptical, hexagonal, octagonal, etc., it always consists of a plane surface provided with a bridle to which the string is attached, and with a tail of varying length. This last-named appendage was for a long time looked upon as indispensable, and it seemed as if a tailless kite could not be thought of. But the Oriental kites imported from China and Japan destroyed such an opinion.

If we attentively examine the tailless Japanese and Chinese kites we shall see that they are no longer plane, but either (like the Japanese flies) consist of a plane part and two wings forming pockets and inclined toward the rear, or, (like the Chinese apparatus) present curved surfaces. This, in fact, is because the plane kite is unstable. It is like a plank that we should like to keep in equilibrium in a current of water, and at right angles therewith, in holding it by a single rope. It is evident that however carefully we fixed this rope at the center of the thrust, the board would be in a state of unstable equilibrium and would continually revolve around its point of attachment. It would be entirely different if we should fasten a string to the handle of an umbrella and present the concavity of the latter to the current. When we study the stability of the tailless kite, we are thus led to seek forms that are entirely different from those of the flat kite.

Without extending this brief statement of the question any further, we shall merely say that one of the best forms to adopt for the tailless kite is the cell. We mean by this the form obtained with at least three, but generally four planes intersecting each other in pairs according to parallel straight lines. We thus obtain a sort of bottomless box. The walls are of paper or of some light fabric. To make the matter plain, let us conceive of a cell of square section. This will present itself in the form of a box of which the four sides will exist, but of which the top and bottom will be suppressed. If we present this cell to the wind in such a way that two of the sides shall be horizontal and two others vertical, it is evident that the air will pass freely through the cell without exerting any pressure capable of raising it; but if we elevate the front edge of the cell slightly, the wind, in pressing the lower surfaces of the walls that were previously horizontal, will tend to raise the apparatus. The latter will have great stability by reason of the existence of the two vertical sides, which, in a manner, play the same part as the keel of a boat.

The sides of the cell that undergo a pressure are the sustaining planes, and the vertical sides the directing ones. If we place two of these cells one behind the other, in leaving between them an interval equal at least to their length, we shall have the Hargrave cellular hovering kite adopted at the Blue Hill Observatory (in the United States), where through the intermedium of meteorological registering apparatus, it is used for exploring the upper regions of the atmosphere. In certain experiments, such apparatus have reached heights of from 5,000, to 6,500 feet.

If, on the contrary, we juxtapose not two but a greater number of cells, say six, eight, twelve, or more, in the same frame, we shall obtain the multicellular hovering kite, which we have devised and constructed after numerous tentatives.

We at the outset placed four rectangular cells one above another, and thus obtained an apparatus having exactly the form of a set of shelves. We tried this upon the beach of Cobourg in 1898; but, since the stability did not prove as great as that which we desired to obtain, we were led to multiply the number of cells and to employ square cells, with one diagonal and horizontal and the other vertical.

Each cell taken isolatedly thus flies upon the side and presents to the wind surfaces that are inclined, one to the right and the other to the left, somewhat as in the case of a boat that is floating upon its keel.

We have in this way constructed a kite of wonderful stability, which rises with the greatest ease and maintains itself in the air with complete immobility.

Our multicellular hovering kite is very easily constructed. It requires as a rigid frame only four wooden rods having the length of one cell and placed at the four corners of the entire affair formed of all the cells, and two cross pieces, one in front and the other behind to give rigidity to the whole.

It may be put together and taken apart in a few minutes with the greatest ease. After being taken apart, it may be rolled up and carried very easily up on a bicycle.

It is so easily managed that any one can send it aloft and maneuver it without difficulty. When it is in the air, it is so stable that ten yards of string may be suddenly paid out without causing it to fall. Finally, its sustaining power is so great that, in a brisk wind, we have been able to make it raise a dummy formed of a child’s clothing and fixed to an umbrella. And yet the kite is not of very large size, its dimensions being four feet in length and breadth and 16 inches in depth, while its weight is a little less than four and a half pounds.

We are indebted to La Vie Scientifique for the description of this form of kite.

Windy_Skies · April 9, 2023, 1:04am

There aren’t that many results for kite in libgen before 1922 when it still had some interest. This is the oldest result:

[Philosophical Transactions (1665-1678) vol. 47] Benjamin Franklin - A Letter of Benjamin Franklin, Esq_ to Mr. Peter Collinson, F. R. S. concerning an Electrical Kite (1751-1752).pdf (347.1 KB)

And this one of the newest:

[Aeronautical journal (London England 1897) 1915-dec vol. 19 iss. 76] Bryan, G. H. - The Small Oscillations of a Kite (1915).pdf (470.3 KB)

Freeflying · April 11, 2023, 2:20pm

im going a bit off topic but iy might be useful?
as edgeware on blades is huge? ive been sat down thinking how to negate it? i might have an idea? but i might be wrong so here goes? each blade make it own bow shock as it turns? so the addition of ridges alon the leading edges to act like riffles should help create a false edge to the blade? by turn the air flow back on it self and fling the particulates of the tips. it should work easy enough? i cheched the tongue and grove with saw dust this morning/ and yes the particulate can be blown in a certain direction? it reminded me of a game played by athletic types? pelota? the scoop rackets?

and jai alai and vx game played by the brits? lacrosse? so have some idea it might work?

the ball represent the particulates? as long as the groove follow the blades curves along the total length? then it should shift the particulates down the length? the groove would form valleys. the top of the valleys would follow the aerodynamic edges a long the length? i can’t say how much edge erosion this would reduce? but as edge is due to on coming particulates? the best thing i could think of was how to moving that out the way?

run the goove along the profiles edges? it don’t need to be deep it just need to form a vortices to shift particulate out the way?

it will be a common problem for turbines? it some thing that require a fix? to prolong a blades life?
let me know hat you think and if improvement are possible?

many thank,
freeflying

Windy_Skies · April 12, 2023, 2:16pm

The search term is Leading Edge Erosion.

In a study by Law et al. (2020) the data from wind farms across the United Kingdom was analyzed. It was found that an average loss of output by each wind turbine per year of about 1.8% was to be expected, with the worst affected wind turbine experiencing losses of 4.9%.

Most interestingly about the study by Law et al. was the finding that the application of leading edge repair tape (leading edge protection, or LEP) to repair LEE damage to a turbine’s 3-year old blades resulted in an additional 1.29% drop in output. This shows just how important the shape of the turbine blades is in order to get the best possible performance, and exemplifies the issue with field repairs using LEP tape.

Although there’s an argument to be made that leaving the LEE to continue unchecked would lead to even worse performance over time, there should not be the expectation that applying tape to the leading edge of a damaged turbine blade will return it to its former glory. Major et al. (2020) also report a 2%-3% drop in Annual Energy Production (AEP) from the use of LEP tape.

Freeflying · April 14, 2023, 1:11pm

@Windy_Skies my think was to looking for a way to eliminate leading edge erosion completely?
nature as deveople many way to protect soft tissue from this kind of prolong damage. a bird wing is one example of management? kestrels face these issue due to dive bombing prey? so it might of take generations to develop a countermeasures? it seems afew are already experimenting with idea?

birds had feathers long before that?

just a question of which to direct the airflow through the channels to prevent edge erosion?

Windy_Skies · April 14, 2023, 7:28pm

You’d have to read up on the research on leading edge erosion to learn more about mitigation. I don’t think the shape of the blade matters much.

The search term for what you are posting now is leading edge serrations I think. Some more info:

Windy_Skies · April 14, 2023, 7:30pm

Tom Scott - This tiny hovercraft went viral.

Freeflying · April 18, 2023, 9:43am

thank you!
will be a good read with a cuppa!
well sign posted!