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Titan’s carbon fibre structural issues explained

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A structural problem with the Titan sub’s hull could have led to the “catastrophic implosion” that destroyed the vessel and killed all five people aboard, experts say.

OceanGate-owned submersible fell apart as it descended toward the Titanic wreckage this week, and investigators were looking for clues on Friday.

The cause of the deep-sea disaster is still unclear, but one expert believes the sub’s hull – its main body – may have failed.

According to Virginia Tech ocean engineering professor Stefano Brizzolara, the sub’s pressure hull may have fractured under pressure and caused the implosion.

“It is difficult to say what caused the structural failure in this case, but any small material and geometric imperfection, misalignment of connection flanges, tightening torque of bolted connection may have started the structural collapse,” Brizzolara said.

There were two different materials used to construct the Titan’s hull: carbon fiber-reinforced plastic and titanium.

When it fails, the carbon fiber element can break into small fragments, as it is “very prone to possible defects” and “has a more fragile behavior” than other materials.

Titan’s repeated voyages to the wreckage of the ocean liner may have also caused the hull to deform and shrink.

“These repeated deformation cycles may have started some material defects in the [carbon reinforced plastic] or some permanent deformations or misalignment between the two parts of the hull that were built with two different materials, which deform in a different way,” he said.

When the implosion occurred, any small leak at that depth would have sent water rushing in at a speed of about 1,000 km (621 miles) per hour, Brizzolara said.

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COP28: Global effort to phase out fossil fuels

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World leaders at COP28 have intensified their commitment to combat climate change by embarking on a bold initiative to phase out fossil fuels.

The United Nations climate talks, held in a virtual format due to ongoing pandemic concerns, saw representatives from nearly 200 countries coming together to address the urgent need for action on the climate crisis.

The decision to focus on ending fossil fuel use marks a significant departure from previous climate negotiations.

Countries have traditionally grappled with setting emissions reduction targets, but this year’s conference places a strong emphasis on the need to transition away from the reliance on coal, oil, and natural gas. Experts argue that this shift is critical to limiting global temperature rise and avoiding the most catastrophic effects of climate change.

Key highlights of the COP28 agreement include setting ambitious deadlines for phasing out fossil fuel subsidies, promoting renewable energy sources, and encouraging the development of green technologies.

The conference also established a fund to support developing nations in their transition away from fossil fuels, recognizing that these countries often face the greatest challenges in achieving sustainability.

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Russian police raid Moscow gay clubs

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Russian authorities conducted raids on several gay clubs in Moscow, according to reports from various media outlets.

The raids have sent shockwaves through the LGBTQ+ community and have raised concerns about the ongoing crackdown on LGBTQ+ rights in Russia.

Eyewitnesses and clubgoers describe a heavy police presence during the raids, with officers reportedly detaining patrons and staff members.

The reasons behind these raids remain unclear, but they have ignited a fierce debate on social media and within human rights organizations.

International LGBTQ+ rights advocates are calling on the Russian government to address these actions and protect the rights and safety of LGBTQ+ individuals in the country.

The raids have also drawn attention to Russia’s controversial “gay propaganda” law, which has been criticized for its potential to fuel discrimination and violence against LGBTQ+ people.

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UK delays Jeff Zucker’s Telegraph deal for inquiry

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The UK government has decided to put a hold on the proposed acquisition of The Telegraph newspaper by media mogul Jeff Zucker’s conglomerate.

According to a recent report, this decision has been made in order to conduct further investigations into potential regulatory concerns surrounding the deal.

The move comes amidst growing concerns over media consolidation and its impact on media diversity and competition.

The government aims to ensure that the acquisition would not result in a concentration of media power that could potentially stifle independent journalism and diverse voices in the industry.

This decision has sparked debates about the balance between media ownership and the preservation of media plurality in the UK. Supporters of the deal argue that it could lead to much-needed investments in The Telegraph, while critics worry about the potential for Zucker’s conglomerate to wield too much influence over the media landscape.

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