An Avenue Of Trees, Cheered Me Up Today
I was feeling a bit down, after the loss of my phone on a train yesterday, as I cam back from Cambridge South station.
After reporting its loss at Liverpool Street station this morning, I thought I might be able to get something I needed at Sainsbury’s in Walthamstow.
To get from Walthamstow Central station to Sainsbury’s I walked along this avenue of trees.
Note.
- It was lovely and cool on a hot day.
- There was a gentle breeze through the trees.
- Halfway along, I chatted to a guy with Indian heritage. He said he liked the trees at Chistmas, when the Council put lights on them.Now surely, that is multiculturalism.
I asked Google AI about the trees and got this reply.
The avenue of mature trees leading from Walthamstow Central Station towards the High Street consists of lime trees. Also locally referred to as Lime Tree Walk, these established trees are well known for soaking up pollution from the adjoining bus and transit areas.
Google AI estimates that the trees are at least a hundred years old.
I believe we should do things like this more often, as it is surely a scientifically-correct way to deal with the pollution of only a few vehicles emitting it.
Out of curiosity, I asked Google AI,”Are we doing research to increase the effectiveness of trees clearing pollution?” and received this reply.
Yes, there is extensive, ongoing scientific research dedicated to increasing the effectiveness of trees at clearing pollution. Studies focus on optimizing urban canopy cover, vegetative barrier design, and microbiome/soil enhancements to maximize both particulate matter (PM) capture and carbon sequestration.
Current research initiatives and findings include:
Vegetative Barriers & Species Traits: Research from the University of Surrey’s Global Centre for Clean Air Research (GCARE) has developed a plant selection framework. By evaluating traits like leaf hairs, canopy density, and seasonal leaf retention, they identify highly effective species (such as silver birch, elder, and yew) to act as physical green barriers that trap particulate matter and filter exhaust.
Tree Spacing & Dispersion: Studies on urban street canyons show that sparse or dense tree spacing can sometimes trap pollutants if the canopy blocks wind flow. However, “medium spacing” (where the gap between trees is roughly equal to the crown diameter) has been proven to optimize both airflow and particle reduction for pedestrians and cyclists.
Soil & Growth Interventions: Studies like the Glandwr Forest Carbon Study by Imperial College London and The Carbon Community are testing methods to boost young tree growth and carbon sequestration using enhanced rock weathering and microbial enrichment.
Cooling & Air Purification Pathways: Recent findings published in Landscape and Urban Planning highlight that trees reduce particulate pollution (PM10) not just by trapping it on leaves, but also through localized cooling. By mitigating extreme heat, trees promote the natural deposition of suspended particles.
It seems that the good citizens of Walthamstow and the nearby forest, probably achieved a result, that was very much in line with modern research.
One Of The Jobs I Did, That I’m Most Proud Of
In the early 1970s, I developed and attempted to market a simultaneous differential equation solving program called SPEED, which stood for Simple Program for the Efficient Evaluations of Differentials or something like that.
It wasn’t very successful, but two companies asked me to write some for them.
- For Time Sharing, I put the central algorithm into their simultaneous differential equation solver to move the program up to the next level.
- WS Atkins, asked me to install it on their computer.
SPEED had a few advantages over typical simultaneous differential equation solvers of the time like IBM/CSMP.
- IBM/CSMP needed at least an IBM 360/50 computer, which I ran it on at ICI in Welwyn Garden City, where I was a general mathematical dogsbody. But SPEED could run on a dial-up line to a time-shared computer like a PDP-10.
- The time-shared computers as used by Time Sharing and WS Atkins, gave the big advantage, that as the size of the computer increased, the size of the problem, that could be tackled in proportion.
- IBM/CSMP and SPEED both had a simple column-oriented report writer, which unsurprisingly ended up in Artemis, which I wrote a few years later.
- I can’t remember, who at ICI gave me the tip, but I used a sophisticated version of the Runga-Kutta algorithm, that everybody used and some probably still do today. The version, I used was called Runga-Kutta-England, where like me England, was a graduate of Liverpool University.
This summary by Google AI described the algorithm.
The England version of the Runge-Kutta method (developed by R. England) is a highly efficient 4th/5th order embedded numerical integration formula. By reusing intermediate slopes across two methods of differing orders, it provides a highly reliable built-in error estimate for adaptive step-size control.
Does anybody still use Runga-Kutta methods? I suspect not!
A breakthrough of sorts came, when WS Atkins asked me to produce a larger system of the SPEED software, that could handle several tens of thousands of equations.
- Atkin’s client was the Water Resources Board and they were modelling the water distribution system for a large part of the UK.
- Prominent in the project was a Dr. David A, Dimeloe and we became friends and had dinner with our wives a couple of times.
- But I never received a copy of the report, that was written or heard any more since about 1975.
- But judging by the fact, that we seem to have adequate supply of water in the UK and problems seem to be all about sewage, politics, management and finance, I feel that David and his team, must have done a good job.
- I was also never asked to fix any bugs in the software.
I did have some trouble getting the money I was owed from the intermediary in the deal, but I eventually retrieved it through the County Court without a solicitor.
Andy Burnham Promised 10,000 Council Houses. Guess The Tally So Far
The title of this post, is the same as that, of this article in The Times.
This is the sub-heading.
Greater Manchester is a success story but that has little to do with the mayor, still less the economic model he is touting for the country
These are the first two paragraphs.
I don’t like being mean to Andy Burnham. With his soft, doe-eyed features, it feels rather like punching a lamb. But it’s quite an achievement when “We’ve got to get beyond this thing of being in hock to the bond markets” isn’t actually the stupidest thing a politician has said in any given week.
The other day Burnham kicked off his not-quite-a-leadership bid by urging Labour to embrace “Manchesterism”. This he defined as “business-friendly socialism”, in which the state “rolled back the 1980s” by seizing control of “the basics of life”: housing, energy, water, rail. This included borrowing £40 billion for new council housing.
This paragraph from Robert Colville gives the current progress on housing in Manchester.
Burnham did announce, in May 2024, that he was going to build 10,000 council houses by 2028. But over the following year the region started construction on just ten. No, that’s not a typo.
That is not a good start!
Will The Real Andy Burnham Please Stand Up!
As I wrirw posts in the next couple of weeks, if I find Andy Burnham has said something about the subject, that is worth adding, I will add it.
TerraLithium, BHE Renewables Announce Key Milestones For Geothermal Lithium Project In California
The title of this post, is the same as that of this article on ThinkGeoEnergy.
This is the sub-heading.
TerraLithium and BHE Renewables have announced key milestones towards advancing technology for lithium extraction from geothermal brines in Imperial Valley, California.
This is the important paragraph in the article.
The business model of coupling lithium and critical minerals extraction with geothermal energy production is gaining increasing attention, both in the United States and in countries like Germany, France, and the UK. As demonstrated in the United Downs geothermal power project in Cornwall, lithium extraction provides additional revenue generation that can significantly improve the economics of deep geothermal projects.
So here we have little Cornwall showing Big California how to get power and lithium out of hot rocks.
In Cornish Plant Produces Geothermal Power, I described the progress at the Cornish plant in March.
Has Andy Burnham Ever Said Anything On Geothermal Energy?
Given that there is an election or coronation under way, I just had to ask Google AI, the question in the title of this section.
This is the answer I received.
Yes, Andy Burnham has occasionally engaged with topics involving geothermal energy, particularly in the context of tapping natural underground heat and mine water for green energy
His notable references to the technology include:
Supporting Manchester’s Geothermal Potential: He has voiced support for localized renewable heat projects, such as exploratory borehole plans in Manchester city centre intended to tap into thermal springs for community heating.
I think we can put that down as a favourable view.
This excellent article on the BBC is entitled Plan To Heat Manchester Homes With A Geothermal Spring, is worth a full read.
Offshore Wind Could Help Create ‘Electric Shipping Highway’ Across Europe, Study Says
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Offshore wind farms, energy islands, ports and proposed “Offshore Power Zones” could together form the foundation of an integrated maritime energy system capable of supporting large-scale vessel electrification across Northern Europe, according to a study by Maersk’s Stillstrom, Baltic Energy Island and the Port of Roenne.
This is a map from the report.
Note.
- In Investment in Grain LNG, I talked about Centrica and Grain LNG Terminal, Centrica’s plans for the terminal, which include bunkering.
- London Gateway and Immingham are two substantial ports on the East side of England.
Are English ports, except for the notable exception of Felixstowe, not shown on the map, because of Brexit?
These two paragraphs add some detail.
According to the findings, it is estimated that around 37,000 cargo vessels pass Bornholm each year, consuming approximately 3 million tonnes of marine fuel and emitting around 10 million tonnes of CO₂ annually. Full electrification of this traffic is estimated to require about 17 TWh of electricity per year, potentially replacing roughly EUR 2 billion in fossil fuel imports with domestically generated renewable power.
The whitepaper also introduces the concept of Offshore Power Zones (OPZs), developed by Stillstrom, which involves vessels accessing offshore wind-generated electricity at sea for battery charging or hotel loads. The report sees these zones linked with electrified ports to form an “electric shipping highway” stretching from the English Channel through the North Sea into the Baltic Sea.
Note that Bornholm is between Sweden and Germany.
Is The UK Developing Sea-Drones To Protect Wind Farms?
I asked Google AI the question in the title of this post and received this answer.
Yes, the UK is actively developing and utilizing sea-drones (and autonomous boats) for its offshore wind farms. This technology is being used to protect the farms by patrolling subsea infrastructure, inspecting underwater turbine foundations, and delivering heavy equipment to mitigate human risk.
Here is a look at how sea drones and autonomous systems are being developed and used for the UK’s offshore energy sector:
Subsea Security and Patrolling: The UK and NATO are highly focused on protecting critical subsea cables and wind networks from adversarial interference. Firms like Aberdeen-based Honuworx have been contracted to develop autonomous underwater vehicles capable of prolonged remote operation for defense and infrastructure surveillance.
Underwater Structure Inspection: Projects like the UNITE program (led by Heriot-Watt University and supported by the National Robotarium) are testing AI-controlled underwater robots to operate in turbulent seas and maintain offshore wind infrastructure. Meanwhile, Beam (an offshore wind services company) successfully deployed the world’s first AI-driven autonomous underwater drone at Scotland’s Seagreen wind farm, cutting inspection times in half.
Sailing Drones & Remote Operations: Energy companies like Vattenfall are controlling uncrewed surface vessels (USVs) and sailing drones from remote operation centers in Aberdeen to patrol and keep North Sea wind farms safe and efficient.
Heavy-Lift Cargo Drones: Beyond sea drones, energy giant Ørsted has utilized giant autonomous drones to deliver heavy equipment—like 70kg boxes of safety gear—directly to the tops of offshore wind turbines in the UK, removing the need for ships and cranes in rough seas
We should fight fire with innovation.
The Undersea Tunnel Network That Could Transform Shetland’s Fortunes
The title of this post, is the same as that of this article on the BBC.
This is the sub-heading.
Shetland wants to ditch ageing ferries and replace them with undersea tunnels connecting five islands including Unst, the most northerly of the British Isles.
These three paragraphs add some more detail.
The plans sound grand but they have also been greeted with some scepticism.
Can the Shetland Isles really pull off such an ambitious plan, given the UK’s struggles to deliver big projects such as high speed rail?
Yes, says the prime minister of the tiny Faroe Islands, which are 200 miles further out into the Atlantic.
The Faroe Islands Tunnel Network
I asked Google AI to describe the Faroe Island tunnel network and received this answer.
The Faroe Islands tunnel network is a massive feat of engineering connecting the 18-island archipelago.
It features over twenty land tunnels and four ultramodern subsea tunnels.
The system replaces unpredictable ferries, drastically reduces travel times, and even features the world’s first subsea roundabout.
The subsea tunnel network links major islands and regions:
Eysturoyartunnilin (Eysturoy Tunnel): A major project stretching over 11 km that connects the capital, Tórshavn, to the towns of Runavík and Strendur.
It is famous for the world’s first underwater roundabout—dubbed the “jellyfish”—which sits 72 meters below the seabed and is illuminated by stunning blue light effects and sculptures by local artist Tróndur Patursson. Travel times between Tórshavn and Runavík plummeted from over an hour to just 16 minutes.
Sandoyartunnilin (Sandoy Tunnel): Spanning roughly 11 km, this subsea tunnel connects the island of Sandoy to Streymoy.
It reaches depths up to 150 meters below sea level and integrates a relatively isolated community into the mainland, turning an hours-long ferry journey into a brief 30-minute commute.
Norðoyatunnilin (Northern Islands Tunnel): A 6.3 km subsea connection linking the island of Eysturoy with Borðoy (home to Klaksvík, the second-largest city in the Faroes).
Vágatunnilin (Vágar Tunnel): The first subsea tunnel constructed (opening in 2002), spanning 4.9 km and connecting the main island of Streymoy to Vágar, where the Faroe Islands’ international airport is located.
How the Network Works
Design & Specs: All four subsea tunnels are spacious, two-laned, single-tube designs.
The speed limit throughout the tunnels is fixed at 80 km/h.
Safety & Depth: The tunnels can reach depths of up to 187 meters below the Atlantic Ocean. Despite this, the maximum road gradient never exceeds 5%, ensuring safety for all vehicles.
Toll System: All subsea tunnels require a toll fee. Drivers can either pay per single trip or purchase a Tunnel Pass that covers driving through any subsea connection over a specific timeframe.
How Were The Faroe Tunnels Funded?
I asked Google AI to say how the Faroe Tunnels were funded and received this answer.
The Faroe Islands’ extensive subsea tunnel network is primarily funded through public-private financial partnerships utilizing international bank loans, pension fund investments, and government guarantees.
These multi-million-pound infrastructure projects pay for themselves entirely over time through user tolls.
The mechanics of this self-financing model operate as follows:
Public Companies & Bonds: The government establishes dedicated, publicly-owned companies (such as P/F Eystur- og Sandoyartunlar) that build, own, and manage the infrastructure. These companies take out large loans from international financial institutions—including UK and US pension funds—and issue bonds to private investors.
Toll Revenue Repayment: The loans and bonds are secured against future toll revenues, which are collected from motorists using the tunnels.
Government Guarantees: The Faroese government provides financial backing, essentially guaranteeing minimum traffic usage to reassure institutional investors.
Cross-Subsidization: To ensure all islands benefit, highly-trafficked tunnels (like the Eysturoy tunnel) subsidize the costs of less-trafficked tunnels (like the Sandoy tunnel).
Inside The Faroe Tunnels
This article on the BBC is entitled Faroe Islands: Inside The Undersea Tunnel Network.
It is worth a look.
LEON Are In World Cup Mood
I took these pictures in LEON on Moorgate, this morning.
I won’t be eating one as it contains coconut, which is something, that I don’t like.
Ukraine Is Turning The Tide Against Putin. What Happens Next Should Terrify Europe
The title of this post, is the same as that of this article in The Telegraph.
This is the sub-heading.
A ceasefire in Ukraine would not demobilise the Russian army… It would release ex-convicts.
This is the first paragraph.
Whisper it quietly, but the tide may be turning in the war in Ukraine. Yet what comes next should worry us all.
The article is by a Lib-Dem MP; Mike Martin and it paints a frightening picture of the future.
The Anonymous Widower 