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PASSIVE RADIATIVE COOLING
Stanford ran water beneath mirror-like rooftop panels; they cooled it 3–5°C below the surrounding air by sending heat into space- In 2024, scientists tested a zigzag-shaped wall prototype; it was up to 3.1°C cooler than a conventional radiative-cooling wall in outdoor tests
- In 2024, scientists built a window that kept a model house about 7°C cooler, without electricity or blocking the view
- In 2023, scientists built a rooftop tile that opens its cooling vents when hot and closes them when cold, using no electricity and cutting cooling costs 3.1-foldInnovative engineers have created high-tech roof tiles that adjust themselves to optimize building temperatures automatically. By utilizing...19 Aug, 2026, 01.50 PM IST
- A cement-based paint that "sweats" water kept a model house more than 4.5°C cooler than conventional white paintInnovative researchers have unveiled a remarkable paint designed to keep buildings cooler by absorbing moisture. This advanced formula not ...18 Aug, 2026, 06.40 PM IST
- In 2023, U.S. scientists created “cooling glass” that reflects 99% of solar energy and radiates building heat toward spaceA team of engineers at the University of Maryland has unveiled a revolutionary rooftop glass coating that offers remarkable cooling propert...10 Aug, 2026, 05.29 PM IST
- Are data centres uncool? Questions over AI's ecological trade-off are growing louder but solutions may be emergingAI's environmental strain from data centers and resource exploitation is causing growing public concern. Communities face water shortages a...09 Jul, 2026, 11.37 PM IST
- These windows keep homes cool by 5°C: Scientists develop special glass that reduces AC use and electricity billsNew transparent cooling technologies are being developed for windows. These advanced coatings reflect unwanted solar heat while allowing in...09 Jul, 2026, 03.29 PM IST
- Scientists just made an all-silk cooling textile that reflects 94.8% of sunlight and lowers skin temperature by 4.3 °CScientists have engineered a revolutionary silk fabric, dubbed SilkNT, that cools the skin by an impressive 4.3°C without any batteries or ...23 Jun, 2026, 05.01 PM IST
- Penguin feathers inspired a "living skin" material that could slash energy bills in buildingsResearchers have developed a revolutionary thin film inspired by penguin feathers that passively switches between heating and cooling modes...04 Jun, 2026, 03.30 PM IST
- Megacity heatwaves are now a fatal nightmareCities are becoming dangerous places at night due to rising temperatures. Lack of cool nights strains the body, increasing risks of serious...03 Jun, 2026, 08.44 AM IST
- No AC needed! What is this 'smart paint' developed by scientists that reflects 97% of sunlight & even collects water from air?Scientists have developed an experimental "smart paint" that reflects up to 97% of sunlight, significantly cooling surfaces and reducing th...31 May, 2026, 12.50 PM IST
- Why Opening Windows at the Wrong Time Can Trap Heat InsideOpening windows on hot days can trap heat, making homes warmer and more uncomfortable. Research shows that hot air enters homes through ope...18 Apr, 2026, 01.14 PM IST
- The Heating Habits People Used Before Smart Systems And Why Some Still WorkOld heating methods are surprisingly effective. People used to adjust their homes manually for warmth. Science now shows this human-centric...04 Apr, 2026, 12.31 PM IST
- How electricity-free cooling could power India’s next green tech revolutionIndia faces record heat, increasing electricity demand. A new electricity-free cooling technology uses reflective coatings to reduce temper...29 Oct, 2025, 05.58 PM IST
- Apple HomePod mini review: Hover your iPhone over the mini to set up the speaker, and become 'smart'Priced at Rs 9,900, it is the second smart speaker Apple has launched.19 Dec, 2020, 11.00 PM IST
- Passive cooling to cut electricity billsBengaluru, Oct 2 (IANS) Air-conditioning your building without electricity? Researchers at Stanford University in the US report it is poten...02 Oct, 2017, 11.42 AM IST
- Now, glass paint to keep metal roofs cool on sunny daysScientists have developed a new, environment-friendly and inexpensive paint out of glass that bounces sunlight off metal surfaces.17 Aug, 2015, 01.01 PM IST
- How blazing sun can cool your buildingAt Solar Energy Centre in Gurgaon, solar ACs have replaced conventional devices. Some other buildings have switched to alternative cooling ...06 Apr, 2012, 10.58 AM IST
- Indian N-plants have safer design: NSAAEC and AERB chiefs briefed the PM about the technical safety systems in place in existing power plants in India.17 Mar, 2011, 04.27 AM IST
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