Coronavirus can go up to 8 metres from exhalation, linger in air for hours: MIT scientist

News Network
April 2, 2020

The current physical distancing guidelines provided by the World Health Organisation (WHO) and by the US Centers for Disease Control and Prevention (CDC) may not be adequate to curb the coronavirus spread, according to a research which says the gas cloud from a cough or sneeze may help virus particles travel up to 8 metres. The research, published in the Journal of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.

Study author, MIT associate professor Lydia Bourouiba, warned that droplets of all sizes can travel 23 to 27 feet, or 7-8 metres, carrying the pathogen.

According to Bourouiba, the current guidelines are based on "arbitrary" assumptions of droplet size, "overly simplified", and "may limit the effectiveness of the proposed interventions" against the deadly pandemic.

 She explained that the old guidelines assume droplets to be one of two categories, small or large, taking short-range semi-ballistic trajectories when a person exhales, coughs, or sneezes.

However based on more recent discoveries, the MIT scientist said, sneezes and coughs are made of a puff cloud that carries ambient air, transporting within it clusters of droplets of a wide range of sizes.

Bourouiba warned that this puff cloud, with ambient air entrapped in it, can offer the droplets moisture and warmth that can prevent it from evaporation in the outer environment.

"The locally moist and warm atmosphere within the turbulent gas cloud allows the contained droplets to evade evaporation for much longer than occurs with isolated droplets," she said.

"Under these conditions, the lifetime of a droplet could be considerably extended by a factor of up to 1000, from a fraction of a second to minutes," the researcher explained in the study.

The MIT scientist, who has researched the dynamics of coughs and sneezes for years, added that these droplets settle along the trajectory of a cough or sneeze contaminating surfaces, with their residues staying suspended in the air for hours.

"Even when maximum containment policies were enforced, the rapid international spread of COVID-19 suggests that using arbitrary droplet size cutoffs may not accurately reflect what actually occurs with respiratory emissions, possibly contributing to the ineffectiveness of some procedures used to limit the spread of respiratory disease," Bourouiba wrote in the study

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News Network
February 1,2026

Golf.jpg

The coastal city of Mangaluru is gearing up for a major sporting milestone with the launch of a Golf Excellence Academy at the Pilikula Golf Club (PGC), scheduled to open on May 31. The initiative aims to position Mangaluru firmly on India’s national golfing map.

Speaking to reporters on Saturday during PGC’s first-ever floodlit Pro-Am tournament, club captain Manoj Kumar Shetty said the project is being funded by UAE-based philanthropist Michael D’Souza and is currently in the design phase. Experts from leading golf academies across the country are expected to visit Mangaluru to help shape the training programme and infrastructure.

The academy will train 20 young golfers at a time, with a long-term vision of producing national-level players from the region. Until now, PGC relied on an in-house coach, but the recent renovation of the course and the introduction of floodlights have opened new possibilities for expanding the sport.

Shetty said discussions are underway with two reputed coaching academies, whose heads are expected to visit PGC shortly. “A dormitory for trainers is already under construction. We are inviting academies to assess the facilities and suggest changes so we can build a truly world-class Golf Excellence Academy,” he said.

Professional golfer Aryan Roopa Anand noted that the floodlit course would be a game-changer for young players. “Students can now practise after school hours, even up to 8 or 9 pm, without compromising on academics,” he said.

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News Network
February 5,2026

In an era where digital distractions are the primary rival to academic excellence, the Karnataka Education Department is taking the fight directly to the living room. As the SSLC (Class 10) annual examinations loom, officials have launched a localized "digital strike" to ensure students aren't losing their competitive edge to scrolling or soap operas.

The 7-to-9 Lockdown

The department has issued a formal directive urging—and in some cases, enforcing via home visits—a total blackout of mobile phones and television sets between 7:00 PM and 9:00 PM. This two-hour window is being designated as "sacred study time" across the state until the examinations conclude on April 2.

Key Pillars of the Initiative:

•    Doorstep Advocacy: Teachers are transitioning from classrooms to living rooms, meeting parents to explain the psychological benefits of a distraction-free environment.

•    Parental Accountability: The campaign shifts the burden of discipline from the student to the household, asking parents to lead by example and switch off their own devices.

•    The Timeline: The focus remains sharp on the upcoming exam block, scheduled from March 18 to April 2.

"The objective is simple: uninterrupted focus. We are reclaiming the evening hours for the students, ensuring their environment is as prepared as their minds," stated a senior department official.

Student vs. Reality

While the student community has largely welcomed the "forced focus"—with many admitting they lack the willpower to ignore notifications—the move has sparked a debate on enforceability. Without a "TV Police," the success of this initiative rests entirely on the shoulders of parents and the persuasive power of visiting educators.

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News Network
February 3,2026

wind.jpg

Dakshina Kannada MP Capt Brijesh Chowta has urged the Centre to give high priority to offshore wind energy generation along the Mangaluru coast, citing its strategic importance to India’s green energy and port-led development goals.

Raising the issue in the Lok Sabha under Rule 377, Chowta said studies by the National Institute of Oceanography have identified the Mangaluru coastline as part of India’s promising offshore wind ‘Zone-2’, covering nearly 6,490 sq km. He noted that the region’s relatively low exposure to cyclones and earthquakes makes it suitable for long-term offshore wind projects and called for its development as a dedicated offshore wind energy zone.

Highlighting the role of New Mangalore Port, Chowta said its modern infrastructure, multiple berths and heavy cargo-handling capacity position it well as a logistics hub for transporting and assembling large wind energy equipment.

He also pointed to the presence of major industrial units such as MRPL, OMPL, UPCL and the Mangaluru SEZ, which could serve as direct buyers of green power through power purchase agreements, improving project viability and speeding up execution.

With Karnataka’s peak power demand crossing 18,000 MW in early 2025, Chowta stressed the need to diversify renewable energy sources. He added that offshore wind projects in the Arabian Sea are strategically safer compared to the cyclone-prone Bay of Bengal.

Calling the project vital to India’s target of 500 GW of renewable energy by 2030, Chowta urged the Ministry of New and Renewable Energy to initiate resource assessments, pilot projects and stakeholder consultations at the earliest.

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