How to use ventilation and air filtration to prevent the spread of coronavirus indoors

<span class="caption">Open windows are the simplest way to increase air flow in a room.</span> <span class="attribution"><a class="link rapid-noclick-resp" href="https://www.gettyimages.com/detail/photo/man-with-mask-looking-out-of-window-royalty-free-image/1215148858?adppopup=true" rel="nofollow noopener" target="_blank" data-ylk="slk:Justin Paget / Digital Vision via Getty Images"> Justin Paget / Digital Vision via Getty Images</a></span>
Open windows are the simplest way to increase air flow in a room. Justin Paget / Digital Vision via Getty Images

The vast majority of SARS-CoV-2 transmission occurs indoors, most of it from the inhalation of airborne particles that contain the coronavirus. The best way to prevent the virus from spreading in a home or business would be to simply keep infected people away. But this is hard to do when an estimated 40% of cases are asymptomatic and asymptomatic people can still spread the coronavirus to others.

Masks do a decent job at keeping the virus from spreading into the environment, but if an infected person is inside a building, inevitably some virus will escape into the air.

I am a professor of mechanical engineering at the University of Colorado Boulder. Much of my work has focused on how to control the transmission of airborne infectious diseases indoors, and

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‘An All Around Great Talent and Good Guy’

Jackie Brown/SplashNews.com

WWE wrestler James Harris, who was known by WWE fans as “Kamala” or “The Ugandan Giant,” has died. He was 70.

The World Wrestling Entertainment website confirmed the wrestler’s death in a statement released on Sunday but did not reveal his cause of death.

However, Kenny Casanova, the writer who co-authored Harris’ autobiography, Kamala Speaks, shared in a Facebook post that the wrestler died after contracting the novel coronavirus (COVID-19).

“Just got off the phone. Unfortunately, the rumors were correct. To make matters worse, it was Corona that took him; he was one of the good ones,” Casanova wrote in his post.

Per The Washington Post, Harris had suffered from many health issues in recent years and had both of his legs amputated due to complications from diabetes.

RELATED: WWE Superstar Ric Flair Confirms Wife’s Coronavirus Diagnosis, Denies He’s Tested Positive

MediaPunch/Shutterstock James “Kamala” Harris

Born

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The human cost of a year of internet blackouts in Kashmir

Exactly a year ago, the Indian government scrapped the controversial Article 370 from the country’s constitution to strip the northernmost state of Jammu & Kashmir of its autonomy. With that, it also cut off internet access for millions of people in the region, with a view to maintaining law and order situation in the state.

It’s been a year since that day and internet connectivity, including broadband usage, has been restored in the region just a few months ago. However, mobile users still have to use 2G connectivity and there are frequent shutdowns that cut them off.

Here’s a look at how this has affected people in the region over the past year, as well as during the pandemic — and what it tells us about the power governments wield over people by controlling access to digital service

A history of Kashmir leading up to the scrapping of Article 370

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Many landmark restaurants, bars won’t reopen after virus

TAMPA, Fla. (AP) — La Tropicana Cafe has been a cornerstone of Tampa’s historic Latin-influenced Ybor City neighborhood since the 1960s, well known as a gathering spot where movers and shakers and even mobsters mixed with construction workers over Cuban coffee and sandwiches.

Now its doors are likely closed for good, like so many other bars and restaurants done in by the coronavirus pandemic.

Every neighborhood loses something precious when local eateries and hangouts get shuttered, but as infections spread and the economic fallout continues, the loss of iconic establishments like La Tropicana is particularly hard to swallow.

“In Tampa, if you were a politician, La Tropicana was where you would show up,” said Patrick Manteiga, editor and publisher of La Gaceta, a local newspaper that publishes in English, Spanish and Italian. For years, his father, Roland Manteiga, kept a corner table reserved for himself, with a special red telephone

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This California school is open, ‘learning as we go.’ Is it a model or a mistake?

China Arkansas, 8, an incoming third-grader at Mount St. Mary's Academy in Grass Valley, Calif., takes an assessment test under the watch of teacher David Pistone. <span class="copyright">(Gary Coronado / Los Angeles Times)</span>
China Arkansas, 8, an incoming third-grader at Mount St. Mary’s Academy in Grass Valley, Calif., takes an assessment test under the watch of teacher David Pistone. (Gary Coronado / Los Angeles Times)

Inside Mount St. Mary’s Academy, a Catholic school in this Gold Rush town in the Sierra Nevada foothills, a life-size statue of the Virgin Mary stands sentinel over the check-in table at the front door. Students returning for the fall session stop under her watchful gaze for a modern ritual of pandemic life: temperature check, hand sanitizer, questions on their potential as virus vectors.

Thursday morning, Principal Edee Wood wore a red paisley-printed mask as she wielded a digital thermometer intended to protect the 160 students at her school, one of the few in California attempting in-person classes this fall. At Mount St. Mary’s, life is going back to normal with crisp uniforms, sharp pencils and classes five

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How a Star Harvard Professor Got Suckered by ‘Jesus’ Wife’

Photo Illustration by The Daily Beast/Getty/AP
Photo Illustration by The Daily Beast/Getty/AP

In September 2012, late in the evening of the penultimate day of the 10th International Congress on Coptic Studies, academic luminary and Harvard Professor Karen King announced the discovery of a previously unknown early Christian text that she called the Gospel of Jesus’ Wife (GJW). King’s announcement made headlines around the world because one line of the fragment was said to read “Jesus said to them, ‘my wife…’” and then broke off. Was Jesus referring to his wife?

Though King herself never claimed that Jesus was married, the possibility that he was fed into Da Vinci Code hype about a married Messiah. Some were skeptical early on about its authenticity, but as scientific testing and academic analysis pulled the credibility of the Gospel of Jesus’ Wife to pieces a new story emerged: one in which an amateur pornographer-turned-forger deceived an Ivy League professor and,

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Is this new online-only private school the future of education?

boy studies on laptop
boy studies on laptop

As a parent of a teen facing her final year of GCSE study after months out of school – often with patchy teaching – I’m feeling decidedly nervous. Although the Government has promised to open schools in September, a new study says a lack of an effective track and trace system means this might not be safe. Adding to the chaos, a dreaded ‘second wave’ of COVID-19 may also lead to unpredictable local or national lockdowns. It’s not just parents like me who are concerned. As Scottish children mourn their disappointing GCSE grades, a new study, Life After Lockdown, from the nation’s leading youth programme NCS (National Citizen Service) has found that 67 per cent of teens aged 16-17 are worried about their education.  

The result? More and more parents are looking for alternatives to traditional schools. 

Across the UK, Google searches for the term’ online

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How Trump and Biden are trying to run virtual campaigns during coronavirus

President Donald Trump’s campaign has ridiculed rival Democrat Joe Biden for remaining cloistered during the pandemic, forced to give speeches, meet activists and raise money almost entirely from the seclusion of his basement in Wilmington, Delaware.

But as precautions and concerns about COVID-19 have grown, Trump has also halted his signature rallies at least temporarily and started his own virtual gatherings to keep in touch with voters.

“They’re making things up on the fly and seeing what works,” said Bob Oldendick, a political science professor at the University of South Carolina. “You use everything that’s available to you.”

Spikes in COVID-19 cases and social distance measures used to slow the spreading virus have forced the Trump and Biden teams to adjust their campaigns in ways never seen in history. Rallies, handshakes and traditional grassroots organizing are out. They’ve been replaced with a barrage of email, texts, candidate videos, Zoom meetings

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Beluga whales transported from captivity in China to ocean refuge

The two Beluga whales, named Little Grey and Little White, were moved to the world's first open-water whale sanctuary after travelling 6,000 miles from an aquarium in China. (PA)
The two Beluga whales, named Little Grey and Little White, were moved to the world’s first open-water whale sanctuary after travelling 6,000 miles from an aquarium in China. (PA)

Two 12-year-old beluga whales have been transported to a sanctuary in Iceland after a decade in a Chinese aquarium where they performed as show animals.

The whales, called Little Grey and Little White, made the 6,000-mile journey from Shanghai, beginning in June last year, thanks to UK charity the Sea Life Trust.

They are now in a care area of the world’s first open-water sanctuary for belugas in Klettsvik Bay off the south coast of Iceland.

They will need time to acclimatise to their new natural environment before their final release into the wider sanctuary.

Images show the distinctive animals, which weigh around 1,200kg each, being taken into the refuge by a team using special tight harnesses.

The relocation took 12

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Miami public schools return to online learning. What lessons were learned from spring?

Reopening Miami-Dade public schools began as a game of “ifs.”

If positive cases trend downward for 14 days. If testing for asymptomatic minors becomes widely available and expeditious. If at least 25% of a school’s student body opts to stay home, then the rest can go to the schoolhouse.

But as students, parents and teachers approach the first day of school — now Aug. 31 for Miami-Dade — there is finally more clarity on what school will look like. School will be remote and online until at least Oct. 5.

For at least a dozen districts around the state, including Miami-Dade, even the first day of school became another “if.” Start dates have been pushed back and some districts have conceded that virtual learning will take place for the first few weeks. Miami-Dade pushed its first day of school from Aug. 19 to Aug. 24 and then to Aug. 31

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