The machine digging HS2’s longest tunnel has completed its 10-mile journey under the Chiltern Hills, almost three years after it started.
Dubbed Florence – after the nurse Florence Nightingale – the machine was greeted with fireworks and cheers from hundreds of HS2 workers on Tuesday.
Florence was launched in May 2021 near Rickmansworth, Hertfordshire, and set off on a 10-mile journey underground before emerging in South Heath, Buckinghamshire.
Image: Pic: PA
Image: Pic: PA
It finished one of a pair of tunnels – at a depth of up to 80 metres – that will be used for HS2 trains travelling between London and Birmingham.
The second tunnel is set to be finished within the coming weeks.
Image: Pic: PA
Image: Pic: PA
Described as an “underground factory” by HS2Ltd, Florence ran with a crew of around 17 people working in shifts to keep it running constantly.
During its journey, the machine excavated the tunnel, lined it with 56,000 pre-cast concrete segments and grouted them into position, moving at an average speed of 16 metres per day.
After completing its mission, the machine will now be dismantled over the coming weeks.
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Some large parts will be reused in other tunnel boring machines, but much of the machine – with a diameter of 10.25 metres – will be scrapped.
Image: Pic: PA
Image: Pic: PA
Rail minister Huw Merriman said after the tunnel was completed: “This ground-breaking moment for HS2 demonstrates significant progress on the country’s largest infrastructure project, with Florence paving the way for faster, greener journeys between London and Birmingham while supporting hundreds of jobs and apprenticeships along the way.
“Today’s breakthrough of HS2’s longest tunnel highlights the momentum behind the project and the achievement is testament to the hard work and dedication of the 450-strong team helping deliver the line that will transform rail travel for generations to come.”
Image: A tunnel boring machine’s front shield being mounted near Old Oak Common, on 10 October 2023. File pic: PA
Preparations for the launch of two more machines to excavate tunnels between Old Oak Common and Euston in the capital is also under way.
Four similar machines are being used for tunnels on the approach to London, while another two will work on Birmingham’s Bromford tunnel.
The three million cubic metres of chalk and other material removed by Florence will be used for a grassland restoration project in Rickmansworth.
Image: Construction for HS2 at Curzon Street, Birmingham, on 4 November 2023. File pic: PA
Image: Construction work on the HS2 line in Water Orton near Birmingham, on 15 February 2024. File pic: PA
In January, HS2 Ltd executive chairman Sir Jon Thompson said the cost of building HS2 between London and Birmingham could reach nearly £67bn – almost double an early projection for the entire original project.
The Public Accounts Committee also warned this month that the new plan to build HS2 between London and Birmingham but not extend it to Manchester will be “very poor value for money“.
Satoshi Nakamoto, the pseudonymous creator of Bitcoin, marks their 50th birthday amid a year of rising institutional and geopolitical adoption of the world’s first cryptocurrency.
The identity of Nakamoto remains one of the biggest mysteries in crypto, with speculation ranging from cryptographers like Adam Back and Nick Szabo to broader theories involving government intelligence agencies.
While Nakamoto’s identity remains anonymous, the Bitcoin (BTC) creator is believed to have turned 50 on April 5 based on details shared in the past.
According to archived data from his P2P Foundation profile, Nakamoto once claimed to be a 37-year-old man living in Japan and listed his birthdate as April 5, 1975.
Nakamoto’s anonymity has played a vital role in maintaining the decentralized nature of the Bitcoin network, which has no central authority or leadership.
The Bitcoin wallet associated with Nakamoto, which holds over 1 million BTC, has laid dormant for more than 16 years despite BTC rising from $0 to an all-time high above $109,000 in January.
Satoshi Nakamoto statue in Lugano, Switzerland. Source: Cointelegraph
Nakamoto’s 50th birthday comes nearly a month after US President Donald Trump signed an executive order creating a Strategic Bitcoin Reserve and a Digital Asset Stockpile, marking the first major step toward integrating Bitcoin into the US financial system.
Nakamoto’s legacy: a “cornerstone of economic sovereignty”
“At 50, Nakamoto’s legacy is no longer just code; it’s a cornerstone of economic sovereignty,” according to Anndy Lian, author and intergovernmental blockchain expert.
“Bitcoin’s reserve status signals trust in its scarcity and resilience,” Lian told Cointelegraph, adding:
“What’s fascinating is the timing. Fifty feels symbolic — half a century of life, mirrored by Bitcoin’s journey from a white paper to a trillion-dollar asset. Nakamoto’s vision of trustless, peer-to-peer money has outgrown its cypherpunk roots, entering the halls of power.”
However, lingering questions about Nakamoto remain unanswered, including whether they still hold the keys to their wallet, which is “a fortune now tied to US policy,” Lian said.
In February, Arkham Intelligence published findings that attribute 1.096 million BTC — then valued at more than $108 billion — to Nakamoto. That would place him above Microsoft co-founder Bill Gates on the global wealth rankings, according to data shared by Coinbase director Conor Grogan.
If accurate, this would make Nakamoto the world’s 16th richest person.
Despite the growing interest in Nakamoto’s identity and holdings, his early decision to remain anonymous and inactive has helped preserve Bitcoin’s decentralized ethos — a principle that continues to define the cryptocurrency to this day.
The United States stock market lost more in value over the April 4 trading day than the entire cryptocurrency market is worth, as fears over US President Donald Trump’s tariffs continue to ramp up.
On April 4, the US stock market lost $3.25 trillion — around $570 billion more than the entire crypto market’s $2.68 trillion valuation at the time of publication.
Nasdaq 100 is now “in a bear market”
Among the Magnificent-7 stocks, Tesla (TSLA) led the losses on the day with a 10.42% drop, followed by Nvidia (NVDA) down 7.36% and Apple (AAPL) falling 7.29%, according to TradingView data.
The significant decline across the board signals that the Nasdaq 100 is now “in a bear market” after falling 6% across the trading day, trading resource account The Kobeissi Letter said in an April 4 X post. This is the largest daily decline since March 16, 2020.
“US stocks have now erased a massive -$11 TRILLION since February 19 with recession odds ABOVE 60%,” it added. The Kobessi Letter said Trump’s April 2 tariff announcement was “historic” and if the tariffs continue, a recession will be “impossible to avoid.”
Even some crypto skeptics have pointed out the contrast between Bitcoin’s performance and the US stock market during the recent period of macro uncertainty.
Stock market commentator Dividend Hero told his 203,200 X followers that he has “hated on Bitcoin in the past, but seeing it not tank while the stock market does is very interesting to me.”
Meanwhile, technical trader Urkel said Bitcoin “doesn’t appear to care one bit about tariff wars and markets tanking.” Bitcoin is trading at $83,749 at the time of publication, down 0.16% over the past seven days, according to CoinMarketCap data.