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Polish Researchers Invent Anti-smog Sound Cannon

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“We use vertical shock waves generated by the combustion of acetylene and air,” says Dominique Grivos on the right.

In the constant fight against Poland’s smog, scientists are experimenting with new “cannons” that use sound waves to push toxic particles into the atmosphere, allowing residents to breathe.

The experimental device sits on a metal container and consists of a large upside-down cone that makes a loud noise every 6 seconds.

The purpose is to track smog From Kalwaria Zebrzydowska, where the inhabitants face problems every winter in a heavily polluted state, like many Polish towns and cities. Heating system..

When the sun goes down, the chimneys spew out thick smoke, causing heavy smog to fall into the town.

Poland is one of the most polluted countries in Europe, violating EU standards by hundreds of percentage points at the worst of the year.

By creating sound waves, researchers can “Cannon“Helps reduce the concentration of harmful PM2.5 and PM10 particles in the town air.

“We use vertical shock waves generated by the burning of acetylene and air,” said Dominik Grybos of the Mining and Metallurgy Academy in Krakow, one of the inventors.

“The waves are Polluted air Higher, “he told AFP.

The Toxic particles It is sent hundreds of meters (yards) high and is harmless to the inhabitants.

The experimental sound “cannon”, as described by Polish researchers, can blow toxic particles into the sky hundreds of meters.

“We found that using the cannon for 30 minutes to an hour reduced pollution by 15-30% within a range of 2-3 km (1.2-1.9 miles) from the cannon,” says Grybos. He adds that the effect lasts “between 1 and 3 hours.”

Researchers are trying to calculate the required frequency of blast waves and the duration and time required for the entire procedure.

The price is estimated to be 1,000 to 1,500 zloty ($ 250 to $ 375) for one hour of use.

Mr. Grivos said he hopes that the invention will find commercial use, especially in Poland.

Residents of Kalwaria Zebrzydowska are in widespread support for this idea, despite the sound.

“The smog is very heavy here. The smell is so bad that I can’t deflate the apartment. If that helps, let them test,” said 43-year-old accountant Joranta Warkowich.

“I can hardly hear the sound. It’s like a fireworks display,” she added.

Toxic smog chokes Indian capital during Diwali celebration

© 2022 AFP

Quote: Polish researchers obtained the Anti-Smog Sound Cannon (January 20, 2022) from https: //phys.org/news/2022-01-anti-smog-cannon.html on January 20, 2022. ) Was invented

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Polish researchers invent anti-smog sound cannon

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Fire Under Control Near Fountain Creek Park

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Update 11:12 a.m.

Firefighters put out a wildland fire early Thursday in the Fountain area, officials said.

The blaze was reported about 3:45 a.m. on the east side of Fountain Creek and south of Duckwood Park, Fountain police said in news release. Crews from fire departments in Security, Stratmoor Hills, Fort Carson and Hanover responded to heavy smoke and flames.

The fire was about a mile west of Colorado 85.

“The mild weather conditions this morning made it easier for fire crews to get this fire under control quickly,” police said.

The fire burned less than an acre before it was fully contained, officials said. As of Thursday morning, officials said the area is being monitored and might take several hours before the scene is cleared.

The cause of the fire is under investigation but officials said a lightning strike Wednesday afternoon might have ignited it.

Update 11 a.m.: The fire is 100% contained and burned less than one acre. No structures were threatened and no reported injuries.

The cause of the fire is still under investigation, however, officials think it possibly started from a lightning strike due to later afternoon storms on Wednesday.

Fountain fire department battled a wildland fire near Fountain Creek Regional Park Thursday morning, Fountain police said.

The fire ignited around 3:30 a.m. between Hwy 85 and Comanche Village Drive and crews managed to get the fire under control, police said.

Containment was 50% as of 7 a.m. but police did not give any estimates of the fire’s size.

The cause of the fire is under investigation, police said.


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Original Post: gazette.com

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911 Lines Down in Fremont and Custer Counties, Officials Say

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Fremont and Custer counties have been without 911 services since Wednesday afternoon, officials said.

According to the Fremont County Emergency Management, the lines have been down since 5:15 p.m. Wednesday. The public is asked to not call 911 “to test or check your phone.”

Calls will be be routed to the Pueblo County Sheriff’s Office, officials said. From there, they will be transferred back to Fremont County dispatchers.

This is a developing story. Check with gazette.com for updates.


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Original Source: gazette.com

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Alaska Rep. Don Young to Lie in State at US Capitol

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Rep. Don Young, the longest-serving Republican in U.S. House history, will lie in state in the U.S. Capitol on March 29.Read More

Original Article: seattletimes.com

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