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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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
January 31,2026

Roy.jpg

Bengaluru: The shooting incident involving CJ Roy, founder of the Confident Group, has once again put the spotlight on a businessman whose life has swung between flamboyant global success and persistent controversy at home.

Though Roy’s business interests extended across continents, his roots lay firmly in Karnataka. An alumnus of Christ School in Bengaluru, he later moved to Tumakuru to pursue an engineering degree. Those familiar with his early years describe him as intensely ambitious, beginning his career as a salesman at a small electronics firm dealing in computers.

Roy’s entry into large-scale real estate came through the Crystal Group, where he worked closely with Latha Namboothiri and rose from manager to director. However, the launch of the Confident Group in 2005 was clouded by industry speculation. Insiders speak of a fallout involving alleged “benami” properties and claims of deception that ultimately led to his independent venture—an episode Roy spent years trying to distance himself from, according to associates.

A tale of two cities

Roy’s professional trajectory diverged sharply across geographies.

In Dubai, he built a reputation as a bold and efficient developer, completing massive luxury residential projects in record time—some reportedly within 11 months. His rapid project delivery and lavish lifestyle in the Emirates earned him admiration and visibility in the real estate sector.

In Bengaluru, however, his image remained far more fractured. Sources say Roy stayed away from the city for several years amid disputes over unpaid dues to vendors and suppliers. Several projects were allegedly stalled, with accusations of unfulfilled commitments to cement and steel suppliers continuing to follow him.

Roy’s return to Bengaluru’s business and social circles began around 2018, marked by a conscious attempt at rebranding. His appointment as Honorary Consul of the Slovak Republic added diplomatic legitimacy, which he complemented with visible CSR initiatives, including ambulance donations and high-profile charity events.

Heavy police presence in Langford Town

Following the incident, police personnel from the Central division were deployed outside the Confident Group building in Langford Town, which also houses the Slovak Honorary Consulate in Bengaluru.

The otherwise busy premises near Hosur Road wore a deserted look on Friday, reflecting the shock and uncertainty that followed the tragedy.

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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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