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ELECTROMAGNETISM
A curious bookbinder from London in 1821 placed a current-carrying wire near a magnet and made it continuously rotate - a seemingly simple experiment by the devout Christian uncovered the principle behind the electric motor and helped set the course for modern electrical technology- In 1824, an English engineer invented the first working electromagnet laying the foundation for modern electrical engineering
- In 1834, an American blacksmith along with his wife built the first practical DC electric motor, creating a blueprint for modern electrical machinery
- What is dark matter? All about the universe’s biggest mystery after scientists found possible signal in South Dakota gold mineDark matter is an invisible form of matter believed to make up about 85% of all matter in the universe. Scientists have never directly dete...03 Sep, 2026, 09.05 AM IST
- US, China arm for space warfare: Hunter satellites and orbital weaponsChina and the United States are developing advanced military space capabilities. Both nations are preparing for potential conflict extendin...02 Sep, 2026, 04.06 PM IST
- In 1990, NASA sent a X-ray telescope into space on Space Shuttle Columbia for the first time to perform observations of galactic and extragalactic objects: What was BBXRT?In 1990, NASA sent a X-ray telescope into space on Space Shuttle Columbia for the first time to perform observations of galactic and extrag...02 Sep, 2026, 02.05 AM IST
- Science says microwaves don’t really cook food from the inside out, here’s what happens inside the ovenMicrowaves bounce off the metal walls inside the oven, and when the reflected waves interact with incoming waves, they can create areas of ...01 Sep, 2026, 10.28 PM IST
- Science says sharks can hunt in total darkness using electricity: The biology behind their sixth senseA shark does not always need to see a fish to detect that a living creature is nearby. In murky water, beneath the sand or during the final...01 Sep, 2026, 02.51 PM IST
- Around 1600, a pioneering English physician and natural philosopher invented versorium, the first electroscope, and detected the presence of static electric chargesAround 1600, William Gilbert invented the versorium, the first electroscope, to detect static electric charges. The English physician and n...01 Sep, 2026, 12.57 AM IST
- Five Chinese students build a low-cost device that lets divers send messages underwater without radioFive Chinese students have developed DiveGuard, a low-cost underwater communication system that uses acoustic signals to let divers and sur...31 Aug, 2026, 01.05 PM IST
- In 1932, a Bell Labs engineer trying to solve mysterious static from transatlantic phone calls that repeated every 23 hours and 56 minutes accidentally discovered radio waves from the center of the Milky WayIn the early 1930s, Bell Labs engineer Karl Jansky embarked on an investigation into transatlantic radio interference. By constructing a la...30 Aug, 2026, 08.03 PM IST
- China’s GJ-21 stealth drone spotted as 40,000-tonne Sichuan drone ship nears trialsChina’s GJ-21 naval stealth attack drone has been seen in videos that appear to show flight testing in Liaoning province, according to SCMP...29 Aug, 2026, 05.30 PM IST
- Reliance Jio IPO: 7 risk factors investors should know as firm gets Sebi nod for Rs 37,000-crore issueReliance Jio’s proposed Rs 37,700-crore IPO has received Sebi approval, bringing the much-awaited listing closer. While the offering could ...29 Aug, 2026, 03.00 PM IST
- A big 5G change is coming as India doubles radiation limit to global standardIndia has doubled electromagnetic field limits for mobile networks to global standards. This change allows telecom operators to cover large...29 Aug, 2026, 08.52 AM IST
- Why does a microwave door have a metal mesh? The tiny holes are doing something importantThe metal mesh found on microwave doors serves an essential safety role. The small perforations allow for visibility while effectively bloc...28 Aug, 2026, 08.47 PM IST
- In 2013, balloons were launched by NASA near the North and South poles to study X-rays in Earth’s atmosphereIn 2013, balloons were launched by NASA near the North and South poles to study X-rays in Earth’s atmosphere as part of the Balloon Array f...27 Aug, 2026, 12.46 AM IST
- In 1997, NASA launched Columbia to study undercooled molten metals in microgravity; the STS-83 mission also carried experiments on sintering and fire behaviorThe 1997 mission of space shuttle Columbia was cut short due to problems with fuel cells. However, the crew managed to perform crucial micr...26 Aug, 2026, 07.00 PM IST
- In 1800, an Italian physicist came up with the first chemical battery of the world unlocking modern electrical science: How Alessandro Volta invention created history?In 1800, an Italian physicist came up with the first chemical battery of the world unlocking modern electrical science. Alessandro Volta in...20 Aug, 2026, 10.52 PM IST
- Astronomers looked into the void of space—and watched light do something unthinkableAstrophysicists detected light polarization around a distant magnetar. This observation confirms a quantum vacuum hypothesis from nearly ni...18 Aug, 2026, 08.41 PM IST
- Trump orders Navy catapult system redesign, replacing state-of-the-art tech with older systemTrump steam catapults: President Trump has directed the US Navy to remove advanced electromagnetic catapults. Older steam-powered catapults...14 Aug, 2026, 08.12 AM IST
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