A modular, precast system of concrete ‘rings’ can be connected in different ways to build a range of models of energy-efficient homes. Pablo Moyano Fernández, CC BY-SA
To spur the construction of affordable, resilient homes, the future is concrete
Pablo Moyano Fernández, Washington University in St. Louis Wood is, by far, the most common material used in the U.S. for single-family home construction. But wood construction isn’t engineered for long-term durability, and it often underperforms, particularly in the face of increasingly common extreme weather events. In response to these challenges, I believe mass-produced concrete homes can offer affordable, resilient housing in the U.S. By leveraging the latest innovations of the precast concrete industry, this type of homebuilding can meet the needs of a changing world.
Wood’s rise to power
Over 90% of the new homes built in the U.S. rely on wood framing. Wood has deep historical roots as a building material in the U.S., dating back to the earliest European settlers who constructed shelters using the abundant native timber. One of the most recognizable typologies was the log cabin, built from large tree trunks notched at the corners for structural stability.Log cabins were popular in the U.S. during the 18th and 19th centuries.Heritage Art/Heritage Images via Getty Images In the 1830s, wood construction underwent a significant shift with the introduction of balloon framing. This system used standardized, sawed lumber and mass-produced nails, allowing much smaller wood components to replace the earlier heavy timber frames. It could be assembled by unskilled labor using simple tools, making it both accessible and economical. In the early 20th century, balloon framing evolved into platform framing, which became the dominant method. By using shorter lumber lengths, platform framing allowed each floor to be built as a separate working platform, simplifying construction and improving its efficiency. The proliferation and evolution of wood construction helped shape the architectural and cultural identity of the nation. For centuries, wood-framed houses have defined the American idea of home – so much so that, even today, when Americans imagine a house, they typically envision one built of wood.A suburban housing development from the 1950s being built with platform framing.H. Armstrong Roberts/ClassicStock via Getty Images Today, light-frame wood construction dominates the U.S. residential market. Wood is relatively affordable and readily available, offering a cost-effective solution for homebuilding. Contractors are familiar with wood construction techniques. In addition, building codes and regulations have long been tailored to wood-frame systems, further reinforcing their prevalence in the housing industry. Despite its advantages, wood light-frame construction presents several important limitations. Wood is vulnerable to fire. And in hurricane- and tornado-prone regions, wood-framed homes can be damaged or destroyed. Wood is also highly susceptible to water-related issues, such as swelling, warping and structural deterioration caused by leaks or flooding. Vulnerability to termites, mold, rot and mildew further compromise the longevity and safety of wood-framed structures, especially in humid or poorly ventilated environments.
The case for concrete
Meanwhile, concrete has revolutionized architecture and engineering over the past century. In my academic work, I’ve studied, written and taught about the material’s many advantages. The material offers unmatched strength and durability, while also allowing design flexibility and versatility. It’s low-cost and low-maintenance, and it has high thermal mass properties, which refers to the material’s ability to absorb and store heat during the day, and slowly release it during the cooler nights. This can lower heating and cooling costs. Properly designed concrete enclosures offer exceptional performance against a wide range of hazards. Concrete can withstand fire, flooding, mold, insect infestation, earthquakes, hail, hurricanes and tornadoes. It’s commonly used for home construction in many parts of the world, such as Europe, Japan, Mexico, Brazil and Argentina, as well as India and other parts of Southeast Asia. However, despite their multiple benefits, concrete single-family homes are rare in the U.S. That’s because most concrete structures are built using a process called cast-in-place. In this technique, the concrete is formed and poured directly at the construction site. The method relies on built-in-place molds. After the concrete is cast and cured over several days, the formwork is removed. This process is labor-intensive and time-consuming, and it often produces considerable waste. This is particularly an issue in the U.S., where labor is more expensive than in other parts of the world. The material and labor cost can be as high as 35% to 60% of the total construction cost. Portland cement, the binding agent in concrete, requires significant energy to produce, resulting in considerable carbon dioxide emissions. However, this environmental cost is often offset by concrete’s durability and long service life. Concrete’s design flexibility and structural integrity make it particularly effective for large-scale structures. So in the U.S., you’ll see it used for large commercial buildings, skyscrapers and most highways, bridges, dams and other critical infrastructure projects. But when it comes to single-family homes, cast-in-place concrete poses challenges to contractors. There are the higher initial construction costs, along with a lack of subcontractor expertise. For these reasons, most builders and contractors stick with what they know: the wood frame.
A new model for home construction
Precast concrete, however, offers a promising alternative. Unlike cast-in-place concrete, precast systems allow for off-site manufacturing under controlled conditions. This improves the quality of the structure, while also reducing waste and labor. The CRETE House, a prototype I worked on in 2017 alongside a team at Washington University in St. Louis, showed the advantages of a precast home construction. To build the precast concrete home, we used ultra-high-performance concrete, one of the latest advances in the concrete industry. Compared with conventional concrete, it’s about six times stronger, virtually impermeable and more resistant to freeze-thaw cycles. Ultra-high-performance concrete can last several hundred years. The strength of the CRETE House was tested by shooting a piece of wood at 120 mph (193 kph) to simulate flying debris from an F5 tornado. It was unable to breach the wall, which was only 2 inches (5.1 centimeters) thick.The wall of the CRETE House was able to withstand a piece of wood fired at 120 mph (193 kph). Building on the success of the CRETE House, I designed the Compact House as a solution for affordable, resilient housing. The house consists of a modular, precast concrete system of “rings” that can be connected to form the entire structure – floors, walls and roofs – creating airtight, energy-efficient homes. A series of different rings can be chosen from a catalog to deliver different models that can range in size from 270 to 990 square feet (25 to 84 square meters). The precast rings can be transported on flatbed trailers and assembled into a unit in a single day, drastically reducing on-site labor, time and cost. Since they’re built using durable concrete forms, the house can be easily mass-produced. When precast concrete homes are mass-produced, the cost can be competitive with traditional wood-framed homes. Furthermore, the homes are designed to last far beyond 100 years – much longer than typical wood structures – while significantly lowering utility bills, maintenance expenses and insurance premiums. The project is also envisioned as an open-source design. This means that the molds – which are expensive – are available for any precast producer to use and modify.The Compact House is made using ultra-high-performance concrete.Pablo Moyano Fernández, CC BY-SA
Leveraging a network that’s already in place
Two key limitations of precast concrete construction are the size and weight of the components and the distance to the project site. Precast elements must comply with standard transportation regulations, which impose restrictions on both size and weight in order to pass under bridges and prevent road damage. As a result, components are typically limited to dimensions that can be safely and legally transported by truck. Each of the Compact House’s pieces are small enough to be transported in standard trailers. Additionally, transportation costs become a major factor beyond a certain range. In general, the practical delivery radius from a precast plant to a construction site is 500 miles (805 kilometers). Anything beyond that becomes economically unfeasible. However, the infrastructure to build precast concrete homes is already largely in place. Since precast concrete is often used for office buildings, schools, parking complexes and large apartments buildings, there’s already an extensive national network of manufacturing plants capable of producing and delivering components within that 500-mile radius. There are other approaches to build homes with concrete: Homes can use concrete masonry units, which are similar to cinder blocks. This is a common technique around the world. Insulated concrete forms involve rigid foam blocks that are stacked like Lego bricks and are then filled with poured concrete, creating a structure with built-in insulation. And there’s even 3D-printed concrete, a rapidly evolving technology that is in its early stages of development. However, none of these use precast concrete modules – the rings in my prototypes – and therefore require substantially longer on-site time and labor. To me, precast concrete homes offer a compelling vision for the future of affordable housing. They signal a generational shift away from short-term construction and toward long-term value – redefining what it means to build for resilience, efficiency and equity in housing.An image of North St. Louis, taken from Google Earth, showing how vacant land can be repurposed using precast concrete homes.Pablo Moyano Fernández, CC BY-SAThis article is part of a series centered on envisioning ways to deal with the housing crisis.Pablo Moyano Fernández, Assistant Professor of Architecture, Washington University in St. Louis This article is republished from The Conversation under a Creative Commons license. Read the original article.
The Unfavorable Semicircle Mystery: The YouTube Channel That Uploaded Tens of Thousands of Cryptic Videos
In 2015, the YouTube channel Unfavorable Semicircle gained attention for its enigmatic and abundant video uploads, totaling over 70,000 before its deletion in 2016. Theories about its purpose vary, from automated content generation to digital art experimentation, leaving its intent unresolved.
In the vast digital landscape of the internet, strange phenomena occasionally emerge that leave investigators, tech enthusiasts, and everyday viewers scratching their heads. One of the most puzzling cases appeared in 2015, when a mysterious YouTube channel called Unfavorable Semicircle began uploading an astonishing number of cryptic videos.
Within months, the channel had published tens of thousands of bizarre clips, many of which seemed random, incomprehensible, and visually chaotic. But as internet detectives began analyzing the content more closely, they discovered that these videos might not have been random at all.
The Sudden Appearance of an Internet Mystery
The Unfavorable Semicircle channel reportedly appeared in March 2015, with its first uploads arriving in early April.
Almost immediately, the channel began publishing videos at an incredible pace. Observers estimated that the account uploaded thousands of videos per week, sometimes multiple videos per minute. By the time the channel disappeared in early 2016, researchers believed it had uploaded well over 70,000 videos, possibly far more.
The scale alone made the project seem impossible for a human to manage manually.
Most of the videos shared similar characteristics:
Extremely short or very long runtime
Abstract visuals such as flashing colors, static, or distorted imagery
Little or no audio, or heavily distorted sounds
Titles made of random characters, symbols, or numbers
To casual viewers, the videos looked like pure digital noise. However, online investigators suspected something more deliberate was happening.
Hidden Images Discovered
The mystery deepened when researchers began extracting individual frames from some videos.
When thousands of frames from certain clips were stitched together, the results sometimes formed coherent images. One of the most famous examples involved a video titled “LOCK.” While the footage appeared chaotic at first, combining the frames revealed a recognizable composite image.
This discovery suggested the videos were carefully constructed rather than random uploads.
Theories About the Channel’s Purpose
Because the creator never explained the project, several theories emerged across Reddit, YouTube, and internet forums.
Automated Experiment Many believe the channel was created using automated software that generated and uploaded content at scale.
Alternate Reality Game (ARG) Some viewers suspected the channel might be part of a hidden puzzle or digital scavenger hunt.
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Encrypted Communication Others compared the channel to Cold War “numbers stations,” suggesting the videos could contain coded messages.
Digital Art Project Another theory suggests the channel was an experimental art project exploring algorithms, data, and visual noise.
Despite years of investigation, no single explanation has been confirmed.
Why the Channel Disappeared
In February 2016, YouTube removed the channel, reportedly due to spam or automated activity violations.
By that time, the channel had already become a minor internet legend. Fortunately, some researchers managed to archive a large portion of the videos before they disappeared.
Even today, archived clips continue to circulate online as investigators attempt to decode them.
Unfavorable Semicircle: The Most Bizarre YouTube Mystery
Other Mysterious YouTube Channels
The Unfavorable Semicircle mystery is not the only strange case on YouTube.
One well-known example is Webdriver Torso, a channel that uploaded hundreds of thousands of videos showing red and blue rectangles with simple beeping sounds. Internet speculation ran wild before Google eventually confirmed it was an internal YouTube testing account.
Another example is AETBX, which posts distorted visuals and unusual audio that some viewers believe contain hidden patterns or encoded information.
These cases highlight how automation, experimentation, and creativity can sometimes blur the line between technology and mystery.
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A Digital Mystery That Remains Unsolved
Nearly a decade later, the true purpose behind Unfavorable Semicircle remains unknown.
Was it a sophisticated experiment? A piece of algorithmic art? Or simply an automated test that accidentally captured the internet’s imagination?
Whatever the explanation, the channel stands as a reminder that even in a world filled with billions of videos and endless information, the internet can still produce mysteries that challenge our understanding of technology.
Why Internet Mysteries Still Fascinate Us
Stories like Unfavorable Semicircle capture attention because they combine technology, creativity, and the unknown. They invite people from around the world to collaborate, analyze patterns, and search for meaning hidden in the noise.
And sometimes, the most intriguing part of the mystery is that the answer may never fully be known.
Dive into “The Knowledge,” where curiosity meets clarity. This playlist, in collaboration with STMDailyNews.com, is designed for viewers who value historical accuracy and insightful learning. Our short videos, ranging from 30 seconds to a minute and a half, make complex subjects easy to grasp in no time. Covering everything from historical events to contemporary processes and entertainment, “The Knowledge” bridges the past with the present. In a world where information is abundant yet often misused, our series aims to guide you through the noise, preserving vital knowledge and truths that shape our lives today. Perfect for curious minds eager to discover the ‘why’ and ‘how’ of everything around us. Subscribe and join in as we explore the facts that matter. https://stmdailynews.com/the-knowledge/
Byron Allen’s Starz Stake Signals Bigger Moves in the Streaming Industry
Byron Allen’s Starz: Byron Allen has acquired a 10.7% stake in Starz Entertainment for approximately $25 million, signaling his long-term media strategy amidst industry consolidation. This investment positions him influentially in the evolving streaming market despite intense competition.
Byron Allen — Founder/Chairman/CEO of Allen Media Group
Byron Allen’s Starz investment
Media entrepreneur Byron Allen has taken another step toward expanding his growing media empire. Through his family office, Allen recently acquired a 10.7% stake in Starz Entertainment, purchasing the shares from a fund managed by former U.S. Treasury Secretary Steven Mnuchin.
The transaction, valued at approximately $25 million, gives Allen a significant minority position in the premium cable and streaming platform. While the investment itself may seem modest compared to the billion-dollar deals common in Hollywood, analysts say the move could signal a larger strategy unfolding in the rapidly evolving streaming industry.
Why the Starz Deal Matters
The shares were sold by Mnuchin’s Liberty 77 Capital fund, which previously invested in the company when Starz was still connected to its former parent, Lionsgate.
In 2025, Lionsgate completed a corporate restructuring that separated its operations into two distinct companies:
Lionsgate Studios – responsible for film and television production
Starz – focused on premium cable and streaming services
Following the spin-off, Starz became an independent publicly traded company. As a result, investors are still determining the platform’s long-term value in an increasingly crowded streaming marketplace.
Despite facing intense competition from larger platforms such as Netflix, Disney+, and Amazon Prime Video, Starz continues to maintain a strong subscriber base and recognizable content franchises.
Outlander – historical drama series
The Power franchise created by Courtney A. Kemp and executive produced by 50 Cent
Byron Allen’s Long-Term Media Strategy
Allen’s investment strategy has long focused on owning media distribution and infrastructure rather than simply producing content.
The Weather Channel
Dozens of local television stations across the United States
Multiple niche cable networks and digital platforms
Over the past several years, Allen has also pursued larger acquisitions, reportedly exploring deals involving companies such as Paramount Global and BET Media Group. While those deals did not materialize, they signaled his ambition to expand Allen Media Group into a major force in global media ownership.
The Bigger Picture: Industry Consolidation
Allen’s investment arrives during a time of significant disruption in the entertainment business. Traditional cable television continues to decline as audiences migrate toward streaming platforms. At the same time, major studios and media companies are struggling to make streaming services consistently profitable.
Industry observers believe these pressures could lead to a new wave of consolidation across Hollywood and the streaming sector. Smaller platforms like Starz could become attractive acquisition targets for larger companies seeking additional subscribers and content libraries.
A Potential Hidden Opportunity
For now, Allen’s 10.7% stake does not give him control of Starz. However, it does provide influence as one of the company’s larger shareholders and leaves open the possibility of increasing his ownership in the future.
If consolidation accelerates and streaming platforms begin merging or forming partnerships, assets like Starz could become significantly more valuable. For Byron Allen—whose career began as a stand-up comedian before evolving into one of the most prominent independent media owners in America—the investment may represent another calculated step in a decades-long strategy built around media ownership and long-term growth.
Dive into “The Knowledge,” where curiosity meets clarity. This playlist, in collaboration with STMDailyNews.com, is designed for viewers who value historical accuracy and insightful learning. Our short videos, ranging from 30 seconds to a minute and a half, make complex subjects easy to grasp in no time. Covering everything from historical events to contemporary processes and entertainment, “The Knowledge” bridges the past with the present. In a world where information is abundant yet often misused, our series aims to guide you through the noise, preserving vital knowledge and truths that shape our lives today. Perfect for curious minds eager to discover the ‘why’ and ‘how’ of everything around us. Subscribe and join in as we explore the facts that matter. https://stmdailynews.com/the-knowledge/
2025 was hotter than it should have been – 5 influences and a dirty surprise offer clues to what’s ahead
The past three years recorded unprecedented global heat, with 2025 being particularly warm. Factors such as greenhouse gas emissions and a decline in solar activity influenced temperatures and extreme weather patterns.
The past three years have been the world’s hottest on record by far, with 2025 almost tied with 2023 for second place. With that energy came extreme weather, from flash flooding to powerful hurricanes and severe droughts. Yet, by most indicators, the planet should have been cooler in 2025 than it was.
So, what happened, and what does that say about the year ahead?
As an earth and environmental scientist, I study influences that affect global temperatures year to year, such as El Niño, wildfires and solar cycles. Some make Earth hotter. Some make it cooler. And one particularly unhealthy influence has been quietly hiding a large amount of global warming – until now.The past three years have been the warmest on record. The chart compiled by the European Union’s Copernicus Climate Change Service shows the comparison to preindustrial-era temperatures in the second half of the 1800s. C3S/ECMWF
Factors that made 2025 cooler than 2024
The Earth’s climate is the result of many factors that change from year to year. Some that helped make 2025 cooler than 2024 include:
La Niña’s arrival: La Niña is part of the El Niño-Southern Oscillation, a natural climate pattern that fluctuates between warm El Niño conditions and cooler La Niña conditions. During El Niño, the Pacific Ocean heats up along the equator, influencing the atmosphere in ways that can cause intense storms, droughts and heat waves around the planet. La Niña does the opposite; it’s like putting an ice pack on the atmosphere.
Both 2023 and 2024 were El Niño years, but in 2025 conditions shifted to neutral and then to La Niña starting in September.
The solar cycle: The Sun reached its solar maximum near the end of 2024, the peak of its energy output in an approximately 11-year cycle, and began declining in 2025. So, while the sun’s output was still stronger than average in 2025, it was less than in 2024.
Fewer wildfires: Despite some destructive blazes, the world also saw fewer wildfires during 2025 than 2024, which put less carbon dioxide – a planet-warming greenhouse gas – into the atmosphere.Major warming and cooling influences from 2016 to 2025. Each graph starts at 2016. Anthropogenic warming, natural carbon sinks and sulfur dioxide (SO2) reductions start from zero in 2016 to illustrate cumulative changes to existing reservoirs; El Niño/La Niña and the solar cycle show real-time influences on the global temperature, relative to mean values. Michael Wysession. Data: Global Carbon Project (Anthropogenic Global Warming, Natural Carbon Sinks); NOAA (El Niño/La Niña, Solar Cycle); SO2 Reductions (FaIR Analysis by Carbon Brief)
Several other factors made 2025 warmer than expected, and some are likely to continue to increase in 2026. They include:
Greenhouse gas emissions: The big driver of global warming is excess greenhouse gas emissions, largely from burning fossil fuels, and 2025 had plenty.
Greenhouse gases trap heat near Earth’s surface like a blanket, raising the temperature. They also linger in the atmosphere for years to centuries, meaning gases released today will continue to warm the planet well into the future. The levels of carbon dioxide, methane and nitrous oxide in the atmosphere all increased in 2025.
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Sources of worldwide carbon dioxide emissions that have grown the most in recent decades. Carbon Brief, CC BY
Earth’s energy imbalance: Other sources can disrupt the natural balance between the amount of sunlight that reaches Earth and the lesser amount radiated back to space. A recent study found that Earth’s energy uptake surged and temperatures rose quickly when a rare three-year La Niña in 2020-2022 shifted to El Niño in 2023-2024.
Declining polar ice, which efficiently reflects sunlight back into space, also affects the energy balance. As sea ice declines, it leaves dark ocean water that absorbs most of the sunlight that reaches it. In a spiraling feedback, warmer water melts sea ice, allowing more sunlight into the ocean, warming it faster; 2025 had the lowest winter peak of Arctic sea ice on record and the third-lowest minimum extent of Antarctic ice.
Air pollution: Sulfate aerosol pollution from coal combustion and burning heavy fuel oil in shipping has also been affecting Earth’s energy balance. It has been masking the full effects of human-caused greenhouse gases for years by reflecting sunlight back into space, creating a cooling effect. But sulfate aerosol pollution is also a serious health hazard, blamed for about 8 million human deaths per year from lung diseases.
Recent reductions in sulfate pollution – now 40% less than 20 years ago – have meant about a 0.2 F (0.13 C) increase in global temperatures. Much of the reduction was from China’s efforts to reduce its notoriously bad air pollution in recent years and international shipping rules in effect since 2020 that have reduced sulfur emissions from large ships by 85%.Sea ice levels were near record lows for both Arctic and Antarctic ice in 2025. Carbon Brief, CC BY
Taking all factors together, humans are now warming the planet at a faster rate than at any point in human history: at about 0.5 F (0.27 C) per decade. That extra heat can fuel extreme weather, including flash floods, heat waves, extended droughts, wildfires and coastal flooding, affecting human lives and economies.
Predictions for 2026
Most climate models predict 2026 will be about as hot as 2025, depending on whether a Pacific El Niño develops, which forecasters give about a 60% chance of happening. The planet is already starting the year out warm, even if it doesn’t feel like that everywhere. While January was very cold in parts of the U.S., globally, Earth saw its fifth-warmest January on record, and much of the western U.S. saw one of its warmest winters on record.
Dive into “The Knowledge,” where curiosity meets clarity. This playlist, in collaboration with STMDailyNews.com, is designed for viewers who value historical accuracy and insightful learning. Our short videos, ranging from 30 seconds to a minute and a half, make complex subjects easy to grasp in no time. Covering everything from historical events to contemporary processes and entertainment, “The Knowledge” bridges the past with the present. In a world where information is abundant yet often misused, our series aims to guide you through the noise, preserving vital knowledge and truths that shape our lives today. Perfect for curious minds eager to discover the ‘why’ and ‘how’ of everything around us. Subscribe and join in as we explore the facts that matter. https://stmdailynews.com/the-knowledge/
