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In 2025, researchers built a box from porous PMMA sheets that reflected 96% of sunlight; 80°F outdoor air measured 65.3°F inside without electricity
Innovative materials scientists are exploring passive cooling techniques to lessen the demand for air conditioning. They have engineered a porous PMMA material that effectively reflects solar radiation, demonstrating a notable temperature difference compared to outdoor air. This cooling phenomenon is attributed to the scattering of light within the material's tiny pores, with promising future uses in energy-efficient home designs, including roofs and siding.
In a 2025 study, Penn State researchers tested porous PMMA sheets that reflected 96.4% of sunlight; a test box stayed 14.7°F cooler than the outdoor air
Innovative researchers have crafted a groundbreaking porous plastic sheet that cools without any electrical input. By reflecting sunlight and emitting thermal radiation into the cosmos, a test box made of this material maintained a notably lower temperature than the surrounding air. This eco-friendly technology showcases significant energy conservation possibilities in cooling systems, with promising initial applications in building siding and roofing to help mitigate cooling demands.
In a 2011 Las Vegas test, a 15.24-cm wet roof pond lowered indoor peak operative temperature by about 8.5°C versus the outdoor maximum
In the summer of 2011, a groundbreaking building in Las Vegas experimented with roof pond cooling. Results indicated that wet roof ponds effectively lowered peak indoor temperatures when compared to their dry counterparts. Nonetheless, neither method succeeded in ensuring comfort during extreme heat. Other studies reaffirmed that roof ponds could maintain indoor temperatures lower than those outdoors. Integrating insulation and fans could further enhance comfort levels.
Spanish explorer who became the first European to cross the Mississippi River brought 13 pigs from Cuba to Tampa Bay in 1539. Three years later, his herd had grown to 700, and its spread helped turn America into a pork-producing giant
Hernando de Soto's arrival in Florida in 1539 marked the beginning of a revolution in agriculture as he brought along thirteen pigs. These pigs thrived, escaping captivity and forming wild populations across the continent. This significant introduction laid the foundation for a booming agricultural sector, paving the way for pork to emerge as a prominent global export for the United States.
Consistency, form in spotlight as India begin Women's Asia Cup T20 campaign against Thailand
India begins their Women's T20 Asia Cup campaign against Thailand on Sunday. The team seeks to overcome recent T20I losses and consistency issues. Captain Harmanpreet Kaur's form remains a talking point for the squad. Dependable batter Jemimah Rodrigues is sidelined, impacting the middle order. India aims for success in the Asia Cup and upcoming Asian Games.
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In a 2025 study, researchers fired clay bricks with 10% eggshell powder; thermal conductivity was 50% lower than in untreated bricks
Innovators are integrating eggshell waste into fired clay bricks, effectively reducing heat transfer in building structures. By using a 10% mix of crushed eggshells, thermal conductivity drops by 50%. This breakthrough not only presents a practical solution to managing landfill waste but also enhances insulation, contributing to lower energy consumption in warmer regions.
Tamil Nadu CM Vijay moves Madras HC to vacate stay on conducting bye-elections in 5 assembly segments
Tamil Nadu Chief Minister C Joseph Vijay has approached the Madras High Court. He seeks to vacate an interim order restraining bye-election notifications for five constituencies. These constituencies have returned candidates who resigned from their seats. Vijay argues the Public Interest Litigation lacks locus standi and public interest. He contends stopping bye-elections deprives lakhs of people of representation.
India plans to buy battle-tested Javelin anti-tank system from US: Sergio Gor
India intends to purchase the battle-tested Javelin anti-tank missile system from the United States. This proposed acquisition signifies a deepening of defense cooperation between the two nations. The deal could also open avenues for joint production opportunities between India and the US. Previously, the US approved a sale including Javelin systems and artillery projectiles. This development further strengthens the robust defense partnership India shares with the United States.
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Tejas Networks shares zoom 13% after TCS’s Rs 1,537-crore LOI for BSNL 4G rollout
Tejas Networks shares rose sharply on Friday after the company received a Rs 1,537-crore Letter of Intent from TCS to supply RAN equipment for BSNL’s indigenous 4G rollout. The proposed project covers 18,685 sites, adding to Tejas Networks’ role in the telecom operator’s nationwide 4G network deployment.
Barclays targets India’s billionaires as private banking competition intensifies
Barclays is targeting India’s wealthiest founders and business owners as it seeks to expand its private banking business amid intensifying competition. The lender is leveraging its international network and capital-markets expertise to serve ultra-rich Indians with global assets, aiming for double-digit growth and deeper relationships with the country’s top promoters.
Trump effect? Canadian broadcaster tells journalists not to call 9/11 a terrorist attack ahead of 25th anniversary
In a recent development, Canadian broadcaster CBC has reportedly advised its journalists to refrain from referring to the 9/11 events as a 'terrorist attack.' This directive is in line with their editorial policies that stress the careful use of such terminology. The guidance comes during a period of heightened trade tensions between Canada and the United States, countries that maintain a close economic relationship, especially in the energy sector.
Scientists tested reflective pavement through an Australian summer, and the road surface stayed cooler, but midday radiant heat increased above it
A western Sydney trial revealed reflective roads cool surfaces but raise pedestrian temperatures. This study tracked the trade-off over a year, showing a significant surface temperature difference. While road surfaces cooled, the air temperature directly above them increased during daytime. This finding mirrors similar studies conducted in Los Angeles previously. Australian cities remain cautious about widespread adoption due to these heat redistribution effects.
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'Time to teach Canada you can't do this anymore': Trump
President Trump announced new tariffs on Canadian imports after trade talks broke down. Canada retaliated with matching duties on United States goods, which will take effect soon. Trump also imposed tariffs on Canadian autos and parts starting next year. White House advisor Peter Navarro predicted a worse deal for Canada in the future. He stated that Canada would not get the same advantageous offer again.
Columbia Engineering built a pigment-free paint filled with microscopic air pores; it stayed 6°C below surrounding air during hot desert tests in Arizona
Researchers at Columbia University and Purdue University have unveiled an experimental paint-like coating that can cool surfaces to temperatures below the ambient environment. This cutting-edge material reflects over ninety-six percent of solar energy and effectively radiates heat by utilizing air pockets instead of traditional pigments. Although this promising technology is in the exploratory phase, it is not yet available for commercial use.
Nepal flood: IAF keeps fleet on standby for relief operations, C-130J aircraft expected to take off with relief material soon
India's Air Force has transport aircraft on standby for Nepal's flood relief operations. A C-130J aircraft is expected to depart with essential relief materials soon. Prime Minister Modi conveyed condolences and pledged full humanitarian assistance to Nepal. The Indian Embassy is actively coordinating with Nepalese authorities for rescue efforts. Hundreds of foreign and Nepali nationals are reported missing after the flash floods.
China Evergrande fiasco: Court stops PwC International's attempt to distance itself from its local arm's doings
PricewaterhouseCoopers International's attempt to exit the multibillion-dollar Evergrande lawsuit has been dismissed by a Hong Kong court. Liquidators of the company filed the suit alleging audit shortcomings and misrepresentation. The case seeks billions in damages from PwC and its affiliates for their work.
Canada announces $20 billion retaliatory tariffs on US goods, unveils support measures
Canada has announced C$27.6 billion ($19.94 billion) in retaliatory tariffs on US goods, matching Washington’s latest duties dollar-for-dollar.
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In 2023, researchers found shade cooled Singapore streets by 0.8°C across 20 sites. Today, vegetation is estimated to save 228 GWh of energy yearly
Singapore's trees offer significant cooling benefits for city streets. Shaded areas were found to be cooler, reducing heat stress for people. Vegetation around buildings also helps lower energy needed for air conditioning. This urban cooling can save millions in energy costs annually.
SBI eyes $10 billion from NRIs, foreign investors ahead of RBI swap window closure
State Bank of India expects to gather USD 10 billion from non-residents and foreign investors. The bank's total business aims to reach Rs 200 lakh crore by 2030. This ambitious target aligns with the country's economic growth projections. SBI's balance sheet could potentially double every six years. The bank's operations are closely linked to India's economic performance.
Delhi-NCR weather today August 25: Rain and thunderstorms likely in New Delhi, Noida, Gurgaon, Faridabad, Ghaziabad; check IMD forecast
Delhi-NCR weather forecast August 25: Delhi-NCR is likely to see rain, thunderstorms and lightning on August 25, with New Delhi, Noida, Gurgaon, Faridabad and Ghaziabad among the areas covered by the IMD forecast. Light rain is expected at many places, while moderate rain may occur at isolated locations before weather turns warmer and drier from August 26.
Blinkit to freeze new product launches amid festive rush
Blinkit’s decision to pause new products launched on its platform comes as quick commerce and ecommerce platforms prepare for the festive season sale rush. This year’s festive season starts with Onam and Raksha Bandhan this week and will go on till Diwali on November 8.
German-chipmaker Infineon to acquire C2i Semiconductor startup
German semiconductor major Infineon Technologies will acquire Bengaluru-based power-management startup C2i Semiconductors to strengthen its power solutions for AI data centres. Infineon said it will use C2i’s capabilities to create a centre of excellence for digital power technologies in India.
Can divorced central govt woman employee add parents to health scheme? DAE clarifies CHSS rule
The central government has clarified that married female employees can now list their parents or parents-in-law as beneficiaries in the CHSS scheme. Even after a divorce, biological parents remain eligible for benefits if they are dependent on the employee. This guidance was prompted by inquiries from DAE employees, who also received clarifications regarding CHSS facilities available for disabled children.
Andhra Pradesh, Telangana weather today (August 24): IMD warns heavy rain, thunderstorms likely in Hyderabad, Amaravati and other cities due to low-pressure area over Bay of Bengal
Andhra Pradesh and Telangana may see heavy rain, thunderstorms and gusty winds on August 24 as a low-pressure area develops over the northwest Bay of Bengal. IMD forecasts showers across several districts, while authorities have advised residents in vulnerable areas to remain alert. Fishermen have also been asked to avoid the sea.
You don't need meat or supplements to boost immunity. Shah Rukh Khan's heroine shares 10 plant-based foods that that makes your immune system powerful. All of them are considered as superfoods by Brown University
Suffering from weak immunity? You are not alone, unfortunately. Along with seasonal changes, people falling prey to coughs, colds and various infections is a pretty common phenomenon. In a viral Instagram post, Bollywood actress Juhi Chawla suggested a vegetarian diet, which can help you boost your immunity.
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