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ELECTRIC FAN
In 1882, an American engineer at the age of 22 invented a device which had a two-bladed propeller placed onto the rotating shaft of a DC electric motor: The story of the first electric fan- In 2024, Stanford-linked researchers redesigned radiative cooling for vertical walls; the emitter ran 2.5°C below ambient and 8.9°C cooler than white paint
- In 2025, Monash researchers developed a self-adaptive microporous ceramic; daytime cooling reached 19.5°C below ambient while nighttime overcooling was limited to 3.3°C
- Science says some spiders can launch into the sky using silk and electricity to fly and the physics is wildBallooning is a form of aerial dispersal in which a spider climbs to an exposed spot, lifts its abdomen, releases strands of silk and allow...01 Sep, 2026, 02.54 PM IST
- Heat scorches Spain and the European nation finds an old, traditional hack to find some comfortSpain’s brutal summer heat has revived the traditionalabanico, with Spaniards and tourists using folding hand fans across plazas, public tr...01 Sep, 2026, 12.01 PM IST
- Modi govt giving people high-voltage inflation shock, misleading via statistical jugglery: CongressCongress party has strongly criticised the Modi government, alleging that rising prices are putting pressure on ordinary citizens while acc...01 Sep, 2026, 11.51 AM IST
- Ahead of Market: 10 things that will decide stock market action on TuesdayIndian markets fell as rising US bond yields, hawkish Fed signals, renewed US-Iran tensions and crude above $90 pressured sentiment, while ...31 Aug, 2026, 09.34 PM IST
- In 2020, Stanford's radiative cooling technology reached a California supermarket roof; panels were estimated to save 15% to 20% energy, while a Tempe bus shelter film was reported 30°F coolerNew technology allows surfaces to cool themselves under direct sunlight. This innovation reflects sunlight and radiates heat into outer spa...31 Aug, 2026, 06.40 PM IST
- In 1996, architects in Harare built a shopping mall modeled on termite mounds; its passive chimney vents kept the interior cool using 90% less energyConstructed in 1996, Harare's Eastgate Center exemplifies innovative design by mimicking the cooling attributes of termite mounds. This vis...30 Aug, 2026, 02.00 PM IST
- 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 electricityInnovative materials scientists are exploring passive cooling techniques to lessen the demand for air conditioning. They have engineered a ...29 Aug, 2026, 07.40 PM IST
- In 2020, researchers tested a self-moistening hydrogel mat under solar panels; it cooled them by at least 10°C and boosted output by up to 19%New research introduces a cooling gel for solar panels. This gel absorbs moisture at night and releases it as vapor during the day. The coo...29 Aug, 2026, 06.30 PM IST
- 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 airInnovative researchers have crafted a groundbreaking porous plastic sheet that cools without any electrical input. By reflecting sunlight a...29 Aug, 2026, 02.30 PM IST
- Home hack: Salt may help reduce window condensation. The simple household trick could help tackle excess moistureCan putting salt near windows really help with condensation and dampness? This simple kitchen ingredient is often used as a household moist...26 Aug, 2026, 07.41 PM IST
- Dolly Parton grew up with 11 siblings in a tiny log cabin with no electricity or running water. It is now a must-visit tribute to the country music iconDolly Parton grew up with 11 siblings in a tiny one-bedroom Tennessee log cabin, where her family lived without electricity or running wate...26 Aug, 2026, 05.24 PM IST
- In 2019, University of Maryland researchers stripped lignin from wood; the resulting cooling material stayed 12°F cooler than natural wood in an Arizona testScientists developed engineered wood to reflect sunlight and release heat. This material stayed cooler than natural wood when exposed to su...25 Aug, 2026, 02.20 PM IST
- Electricity bill reduced by 60%: Woman shares AC setting she claims helped slash monthly bill significantlyA content creator’s two-part AC experiment has sparked discussion after she reported a monthly electricity bill drop from about Rs 3,500 to...24 Aug, 2026, 10.35 PM IST
- Texas used towering wind turbines as accidental frost fans based on a 2019 NASA observation; the result warmed ground temperatures 4–7°F on winter nightsWind turbines can mix warmer air downward during winter nights. This effect is similar to frost fans used in orchards. Satellite observatio...23 Aug, 2026, 11.35 AM IST
- Long before air conditioners, Americans used ‘white gold’ and other clever methods to keep themselves coolIn a time before air conditioning, Americans became innovative in their quest to stay cool. Architectural elements like high ceilings and s...21 Aug, 2026, 07.54 PM IST
- Jefferies retains Buy on Crompton Greaves; sees up to 29% upsideJefferies retained its Buy rating on Crompton Greaves Consumer Electricals with a Rs 330 target, implying nearly 29% upside. The brokerage ...21 Aug, 2026, 01.32 PM IST
- Stanford ran water beneath mirror-like rooftop panels; they cooled it 3–5°C below the surrounding air by sending heat into spaceResearchers at Stanford have created innovative panels that cool water exclusively using sunlight and mirrors. These panels effectively ref...21 Aug, 2026, 01.00 PM IST
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