Searched for
FIRST 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
- Heat scorches Spain and the European nation finds an old, traditional hack to find some comfort
- 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 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
- 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
- Remembering Anthony Bourdain through his radical honestyAnthony Bourdain's appreciation for honest food and his impact was evident. He enjoyed simple dishes like vada pav, calling it the Bombay b...23 Aug, 2026, 10.09 AM IST
- Why Jannik Sinner pulled out of the US Open despite his dominant 2026 seasonWorld number one Jannik Sinner has withdrawn from the US Open tournament. This decision comes after his right knee injury recovery took lon...21 Aug, 2026, 09.19 PM IST
- Top-ranked Jannik Sinner withdraws from the US Open with a knee injuryIn a disappointing turn of events, top-ranked Jannik Sinner has officially stepped back from the upcoming US Open tournament as he continue...21 Aug, 2026, 09.09 PM 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
- 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
- ETMarkets Management Talk | Crompton 2.0: How premiumisation, innovation and smart products could reshape growth: Kaleeswaran ArunachalamOver the last decade, Crompton has expanded beyond its core categories through sustained investments in technology and product innovation.21 Aug, 2026, 08.36 AM IST
- Delhi-NCR vehicle owners alert: No new petrol, diesel or CNG LGVs below 3,500 kg from 2027; more models to come under new curb from 2028. Check who will be affectedDelhi-NCR regulations will mandate electric light goods vehicles from 2027. Only electric N1 light goods vehicles will be allowed to be reg...20 Aug, 2026, 10.20 AM IST
- Placing aluminium foil on windows: How this simple home trick works, its benefits and the right way to use it to keep rooms cooler in summersUsing aluminum foil to cover windows can efficiently reflect sunlight and minimize heat accumulation indoors. This budget-friendly trick se...19 Aug, 2026, 09.53 PM IST
- 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 testsEngineers have created a groundbreaking zigzag wall that cools itself through a unique design. This structure lowers its temperature by dir...19 Aug, 2026, 02.30 PM IST
- He left school after Class 3, bought a British motorcycle for Rs 300 and taught himself engineering, then built India’s first electric motorIndependence Day 2026 Special: G D Naidu, known as the “Edison of India”, left school after Class 3 but went on to become a pioneering inve...14 Aug, 2026, 09.32 PM IST
- Ceiling fan cleaning tips? Try these simple and affordable home cleaning tricks to remove stubborn dust, dirt and grease from fan bladesCeiling fans can gather dust over time, necessitating routine cleaning to ensure a comfortable environment. An old pillowcase is a clever t...12 Aug, 2026, 02.22 PM IST
- Aluminium foil to remove rust from exhaust fan: How to use this simple DIY hack safelyUsing aluminum foil is an effective trick to eliminate light rust from exhaust fan surfaces. This method works well on unpainted steel and ...09 Aug, 2026, 01.39 PM IST
Load More
