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Why are scientists putting coffee into concrete?

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Scientists have devised a method to recycle used coffee grounds to improve the strength of  concrete.

Engineers at RMIT University have discovered a method to significantly enhance the strength of concrete by nearly 30% by incorporating processed coffee grounds into the construction material.

This approach involves transforming discarded coffee grounds into biochar, a lightweight residue reminiscent of charcoal. This biochar then replaces a portion of the sand that is typically an essential ingredient in concrete production.

The inspiration for this pioneering technique stemmed from a laudable motive – to combat coffee waste in workplaces, according to the research team behind the innovation.

In a noteworthy collaboration, the researchers are currently partnering with local councils to envisage upcoming infrastructure projects, including the construction of walkways and pavements, which will employ this revolutionary concrete.

One of the most promising environmental aspects of this method is its potential to diminish coffee waste ending up in landfills, in addition to easing the demand for natural sand, a vital resource extensively used in the construction industry.

The National Food Waste Strategy Feasibility Study reveals that around 3% of the country’s annual greenhouse emissions stem from food waste. With approximately 75,000 tonnes of coffee waste being generated annually, the newly developed technique could notably contribute to waste reduction efforts.

Termed as pyrolysis, the method involves subjecting coffee waste to temperatures of about 350°C. Remarkably, the engineering team has managed to make this technique more energy-efficient by conducting the process at lower temperatures than customary.

Through careful experimentation, the researchers ascertained that by substituting 15% of the sand conventionally employed in concrete production with coffee biochar, the resulting material exhibited a remarkable surge in strength – an impressive 29.3% increase.

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President Biden and President-elect Trump hold key meeting

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President-elect Donald Trump has chosen Pete Hegseth as his pick for Secretary of Defense.

The combat veteran has two bronze stars having served in Iraq and Afghanistan.

He is a graduate of Princeton University and Harvard University.

In addition providing support to veterans he has held a recent role as a political commentator.

The Defense Department is the largest and oldest U.S. government agency, with a budget of about $850 billion.

Ricoh Danielson a U.S. Army Vet and National Security advisor joins Veronica Dudo to discuss.

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John Thune elected new Senate GOP Leader

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In a closed-door vote, Senator Thune takes on a pivotal leadership role as Senate Republicans look to the future.

In a significant shift within Senate Republican leadership, Senator John Thune of South Dakota has been elected as the new Senate GOP leader, taking over from long-time leader Senator Mitch McConnell.

The decision came after a secret ballot vote among GOP members, marking the end of McConnell’s influential tenure.

Thune, who has served as Senate Minority Whip, is widely recognized for his strategic acumen and steady approach to party leadership.

His appointment signals both continuity and potential change as Senate Republicans prepare to navigate a challenging legislative environment and upcoming elections.

With McConnell stepping back, questions arise about how Thune’s leadership will shape GOP strategies on key issues, from fiscal policy to judicial appointments.

Analysts note that his leadership style is expected to maintain unity while possibly adopting fresh tactics to strengthen the party’s legislative influence.

As Thune steps into this prominent role, Republicans and observers alike will watch how his leadership influences the Senate’s dynamics and the broader political landscape.

The transition reflects a pivotal moment for the GOP as it positions itself for future electoral and legislative battles.

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News sites testing AI for article summaries

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The Wall Street Journal is experimenting with AI to summarise its articles.

 

Readers will see a “Key Points” box at the top of select stories, featuring AI-generated summaries that are checked by editors. This new feature is being tested to assess reader engagement, offering bullet points that highlight key information.

The box includes a note explaining the use of AI, as WSJ explores new ways to add value for subscribers. Other news outlets, like USA Today, are also testing similar AI tools, though some caution readers to consult full articles due to potential AI errors.

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