The Anonymous Widower

Should Those With Long Covid Be Checked For Coeliac Disease?

One of my Google Alerts picked up this interesting page on the British Medical Journal.

In response to this paper on the journal, which was entitled Long Covid—An Update For Primary Care, a retired GP named Andrew Brown had said this.

The update reminds us that alternative diagnoses should be considered in patients presenting with long covid symptoms. I suggest that screening for coeliac disease should be added to the list of conditions to look for. Coeliac disease occurs in more than 1% of the population, with many more cases undiagnosed. Typical symptoms of fatigue and GI problems are the similar to those of long covid.

As a non-medical person, I would agree, as after the Asian flu of 1057-58, I was off school for a long time with long covid-like symptoms and my excellent GP; Dr. Egerton White was very worried.

But at the time, it is now known, I was an undiagnosed coeliac.

So was my coeliac disease meaning that I couldn’t fight the flu?

I cover the link between coeliac disease and long covid in more detail in Covid Leaves Wave Of Wearied Souls In Pandemic’s Wake.

January 11, 2023 Posted by | Health | , , , , , | 3 Comments

The Ultimate Bus Stop

London has very comprehensive bus stops as these pictures show.

Note.

  1. Most bus stops have a pole mounted roundel, that can be seen from a reasonable distance. In many cases, anybody with reasonable sight can see the roundel for the next stop.
  2. Where space permits, bus stops have a shelter with seats, maps and instructions on ticketing.
  3. Some stops have been extended into the road, so that it is a level step into and out of the bus.
  4. As shown in the pictures, so bus stops have displays showing the next ten buses, that will be arriving.

But I do think, they could be improved, with extra features.

Internet Connectivity

I feel strongly, that all bus stops should have good internet connectivity.

This could be 4G, 5G or just wi-fi, but I believe this could help with the safety of people on the street.

Comprehensive Lighting

To contribute to safety, I also feel that all bus stops should be well lit.

CCTV Issues

I also feel that all bus stops should have provision for CCTV, so if there was a need, it could be quickly fitted. But if the bus stop had good internet connectivity, then this shouldn’t be a problem.

Phone Charging

New buses have this feature, so why not at the stops?

Power Supply Issues

If we add all these features, we could be needed an uprated power supply.

  • So could we see bus stops, with solar panels on the roof.
  • Perhaps even a mini wind turbine?
  • I think a vertical wind turbine, which was similar to a SeaTwirl, but smaller, could be ideal!
  • Could it be called a StreeTwirl?
  • A self-powered bus could be created with the addition of a battery.

Self-powered bus stops might be easier to install.

Conclusion

Bus stops will have more features in the future.

January 10, 2023 Posted by | Computing, Energy, Transport/Travel | , , , , , , , , , | 2 Comments

Lützerath: German Coal Mine Stand Off Amid Ukraine War Energy Crunch

The title of this post, is the same as that on this article on the BBC.

This is the sub-heading.

From her tiny wooden treehouse, which sways precariously in the winter wind, a young woman watches an enormous mechanical digger tear into the earth below, its jaws edging ever closer to the village which she’s determined to save.

And these two paragraphs outline the protest.

Lützerath, in western Germany, is on the verge – literally – of being swallowed up by the massive coal mine on its doorstep.

Around 200 climate change activists, who are now all that stand in the way of the diggers expanding the Garzweiler opencast mine, have been warned that if they don’t leave by Tuesday they’ll be forcibly evicted.

But this is not about coal or bituminous coal, as we know it in the UK, this mine will produce lignite or brown coal.

Read both Wikipedia entries linked to the previous sentence and you find some choice phrases.

For bituminous coal.

  • Within the coal mining industry, this type of coal is known for releasing the largest amounts of firedamp, a dangerous mixture of gases that can cause underground explosions.
  • Extraction of bituminous coal demands the highest safety procedures involving attentive gas monitoring, good ventilation and vigilant site management.
  • The leading producer is China, with India and the United States a distant second and third.

For lignite.

  • It has a carbon content around 25–35%. and is considered the lowest rank of coal due to its relatively low heat content.
  • When removed from the ground, it contains a very high amount of moisture which partially explains its low carbon content.
  • The combustion of lignite produces less heat for the amount of carbon dioxide and sulfur released than other ranks of coal. As a result, environmental advocates have characterized lignite as the most harmful coal to human health.
  • Depending on the source, various toxic heavy metals, including naturally occurring radioactive materials may be present in lignite which are left over in the coal fly ash produced from its combustion, further increasing health risks.
  • Lignite’s high moisture content and susceptibility to spontaneous combustion can cause problems in transportation and storage.

I don’t think, that we’ve ever burned lignite in the UK for electricity, as it is just too filthy.

This map shows the mine.

Note.

  1. The autobahn at the West of the map, is a six-land highway, so gives an idea of the scale.
  2. The village of Lützerath is towards the bottom of the map in the middle.
  3. What has been left after the mining, is going to take a lot of restoration.

It almost appears that some of the scenes of devastation, we are seeing in the Ukraine are also happening in Germany due to the frantic search for energy.

A 1960s-Educated Engineer’s Attitude To Coal

I was one of about four-hundred engineers in my year at Liverpool University in the 1960s.

  • Quite a few of those engineers were from coal-mining areas and some were children of miners.
  • I remember the graduate recruitment fair at the University in 1968, where the representative from the National Coal Board sat there alone, as if he’d got the 1960s version of Covid-19.
  • Some went and talked to him, as they felt sorry for him.
  • As far as I know, not one of us, went to work for the National Coal Board.

Engineers and other graduates of the 1960s, didn’t feel that coal was the future.

Had Aberfan and the other pit disasters of the era killed coal as a career, amongst my generation of the UK population?

What Should The Germans Do?

It is my view that whatever the Germans do, burning brown coal, should not be on the list. It’s just too polluting.

This article on euronews is entitled Germany And Poland Have A Dirty Big Secret – An Addiction To Brown Coal.

A few years ago, I was in Katowice on Poland and I have never seen such pollution in Europe, since the smogs of the 1950s.

The euronews article says this.

In eastern Germany some members of a little-known group claim they are being ethnically cleansed, not by militia groups, but by the coal mining industry.

Bulldozers have so far destroyed over 130 Sorb villages to make way for the mining of Europe’s dirtiest kind of fossil fuel – brown coal, or lignite as it is also known.

Brown coal mines are open cast and devour vast tracts of land. As well as whole villages farming and wildlife are destroyed.

The Penk family live in the village of Rohne. They feel their whole culture is also being destroyed.

Note that the Sorbs have a Wikipedia entry, which says there are 60,000 Sorbs in Germany.

One thing the Germans are doing is investing in the UK renewable energy industry.

  • RWE own or part-own over 7 GW of offshore wind farms in the UK, some of which are under development.
  • enBW and BP are developing 3 GW of offshore wind farms in the UK.
  • Over twenty offshore wind farms use Siemens Gamesa turbines.
  • The NeuConnect interconnector is being built between the Isle of Grain and Wilhelmshaven.

Would it not be better for the physical and mental health of German citizens, if they abandoned their dirty love of brown coal and spent the money in the North Sea?

January 10, 2023 Posted by | Energy | , , , , , , , , , , , , , , , , | 3 Comments

Justice – Texas Style

I can’t work out whether this story on NBC, which is entitled Texas Taqueria Customer Fatally Shoots Masked Robber And Returns Money To Patrons, Police Say, makes me feel carrying guns is a good or bad idea?

But at least he seems to know how to use his weapon, as he only hit one person; the robber.

January 10, 2023 Posted by | News | , , , | 1 Comment

Protected: My Solution To Single Use Plastic Cutlery

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January 10, 2023 Posted by | Design, World | , , , , , , , , | Enter your password to view comments.

Norwegian Companies To Explore Using Aluminium In Floating Offshore Wind Turbines

This is based on this press release from World Wide Wind, which is entitled WORLD WIDE WIND AS and HYDRO ASA Signs Letter Of Intent Aiming At Using Aluminium In Offshore Floating Wind Turbines.

This is the first paragraph.

Hydro, the world leading Norwegian aluminium and energy company and World Wide Wind AS, a Norwegian company developing a floating wind turbine, have signed a Letter of Intent (LoI) to explore the use of aluminium in the renewable wind industry. The two Norwegian companies are partnering up to develop floating wind turbines with a design specifically meant for offshore conditions. The goal is to use sustainable and recyclable materials in the construction, including aluminium.

In Do All Wind Turbines Have To Be Similar?, I said this about the radically different turbines of World Wide Wind.

I’ll let the images on the World Wide Wind web site do the talking.

But who would have thought, that contrarotating wind turbines, set at an angle in the sea would work?

This is so unusual, it might just work very well.

As aluminium is lighter, it might be a factor in the success of the design.

This is the last paragraph of the press release.

World Wide Wind’s integrated floating wind turbines are scalable up to 40MW – 2,5 times current wind turbines – and will use less materials and have a smaller CO2 footprint than conventional turbines. It is World Wide Wind’s ambition that these turbines will represent future design for floating wind turbine design.

40 MW is a very large turbine. This is definitely a case of handsome is as handsome does!

 

January 9, 2023 Posted by | Design, Energy | , , , , , , , | Leave a comment

How Liquid Air Could Solve The UK’s Energy Conundrum

The title of this post, is the same as that of this article on The Telegraph.

The article is mainly an article that described the technology and it discloses a few facts.

  • The Carrington plant should be delivered in 2024.
  • Carrington will be a 30 MW/30 MWh system.
  • Efficiency is around 50 %, but there are possibilities to raise it to 70 %.
  • Australia is mentioned as a market.
  • It is likely to be paired with supercapacitors or a flywheel to have a quick start.
  • It seems to me, that turning an idea into a practical system is taking a lot of work and money, and a bit of a rethink.

But hopefully, the system will eventually be developed, as it does promise to be an energy storage system, that doesn’t make high demands on the environment in terms of expensive metals and rare earths.

January 9, 2023 Posted by | Energy, Energy Storage | , , | Leave a comment

NHS To Buy Up Care Beds To Clear Wards

The title of this post, is the same as that of this article on the Sunday Times.

I can remember, when my late wife had her appendix out in 1967 in Barnet General Hospital, that there were two bed-blockers on the ward, where she was being treated. One had serious dementia.Has it really taken nearly sixty years to sort out this problem?

January 8, 2023 Posted by | Health | , , | 2 Comments

Another Renewable Power Idea From Sweden

I have posted some ideas from Sweden on this blog including.

And now there’s the SEATWIRL,  which the company says is the future of offshore wind.

In the Areas Of Use, there is a section with a heading of SeaTwirl For Niche Markets, where this is said.

SeaTwirl has now identified markets where wind turbines of the size of 1 MW can meet a clear market demand and sees a possibility to build a business aimed at these niche markets in parallel with its main target. That can mean revenues for the company sooner than was originally planned.

The niche markets that have been identified are islands and remote seaside villages, fish farms and desalination plants. These are business and places that today are run mainly on electricity from diesel generators, which is both expensive and emits CO2.

One of the places I would use these turbines, is on the apex of four-beam steel portal frame buildings. The original concept for these buildings had been developed at Cambridge University during World War Two and one of the team, had set up a business in Warwickshire, constructing these buildings for barns, factory units and other purposes.

He had programmed a simple computer program, which he ran on a time-shared computer system. I was hired to improve the computer program.

What surprised me was the strength of these buildings and I believe they could support vertical turbines like SeaTwirl along the apex.

I feel there are many other applications, especially if they are designed to be part pf a bigger system.

Conclusion

I like the concept of SeaTwirl.

January 8, 2023 Posted by | Energy | , , | 1 Comment

Should There Be Limits To The Type Of Vehicles Allowed In The Blackwall And Silvertown Tunnels?

When the Silvertown Tunnel opens in 2025, the tunnel and the nearby Blackwall Tunnel will be tolled.

But will there be any restrictions on the vehicles that can use the tunnels, other than those that apply to the Blackwall Tunnel at the present time, which are detailed in Wikipedia.

The tunnels are no longer open to pedestrians, cyclists or other non-motorised traffic, and the northbound tunnel has a 4.0-metre (13.1 ft) height limit.

Note.

  1. I suspect that pedestrians, cyclists or other non-motorised traffic will also be banned from the Silverton Tunnel.
  2. But the height limit will be relaxed for the Silverton Tunnel to allow large trucks and double-deck buses to use the tunnel.

According to this web page, which is entitled the Silvertown Tunnel Bus Network Proposals, the planned buses through the tunnel include.

  • 108 – As now, with a minor route change.
  • 129 – As now, but extended from North Greenwich station to Great Eastern Quay.
  • X329 – An express bus from Grove Park station to Canary Wharf, which runs non-stop through the Silvertown Tunnel.

Note.

  1. The 108 goes through Blackwall and is a single decker bus.
  2. The 129 and the X329 will go through Silvertown and could be double decker buses.
  3. There appears to be no mention of any provision for cycles.
  4. I would assume wheelchairs, buggies and cases will be accommodated as they are on current London buses.

I also think, that the buses must be zero-carbon, which would mean battery-electric or hydrogen.

In Hydrogen-Powered Vehicles And Trains In Tunnels, I looked at the feasibility of running hydrogen buses through the tunnel and came to this conclusion.

I am confident, that we will achieve a safety regime, that allows hydrogen-powered vehicles and trains to be certified to pass through tunnels.

The great advantage of hydrogen buses on the three routes would be that they would probably only need to be filled up once a day, but electric buses might need constant charging.

Provision For Cycles

I think it is essential to have provision for cycles across the river.

  • Folded cycles can be taken almost anywhere on London’s transport system.
  • Non-folding cycles can be taken most places on London’s transport system, but the hours are restricted.
  • There’s always the Woolwich Ferry.
  • Given that the 108 bus seems to weave its way through the East End, I suspect that this bus couldn’t be longer to carry cycles.

I have seen double-deck buses, with provision for cycles at the back of the lower deck in Europe.

  • Perhaps buses like these, could be used on the 129 and X329 routes.
  • A search of the Internet found some buses in East Yorkshire with  provision for two standard cycles.
  • The 129 bus could ferry bikes between North Greenwich station and a convenient stop on the North side of the river.
  • The X329 bus could ferry bikes over the non-stop section of the route between the Sun in the Sands and Leamouth roundabouts.

There could be shorter routes adding extra capacity between the stops, where bikes are loaded and unloaded.

Large Trucks Through The Tunnel

If buses become zero-carbon through the Blackwall and Silverton Tunnels, then why shouldn’t large trucks be zero-carbon?

I think this could be the carrot combined with free passage for zero-carbon vehicles that could clean up Central London’s polluted air.

Smaller Vehicles

Why not gradually reduce the size of vehicles going through the tunnels that must be zero-carbon?

Conclusion

The Silvertown and Blackwall Tunnels can be used as the drivers to clean up Central London’s air.

 

January 8, 2023 Posted by | Transport/Travel | , , , , , , , , , , | Leave a comment