Category : From The Web(1083)

How loud is too loud? Continued exposure to noise above 85 dBA (adjusted decibels) over time will cause hearing loss. The volume (dBA) and the length of exposure to the sound will tell you how harmful the noise is. In general, the louder the noise, the less time required before hearing loss will occur. According

Poor classroom acoustics: The invisible reason Johnny can’t read. Poor classroom acoustics create a negative learning environment for many students, especially those with hearing or learning difficulties. According to a report by David Lubman (“America’s Need for Standards and Guidelines to Ensure Satisfactory Classroom Acoustics”) “acoustical conditions in many classrooms are unsuitable for such tasks

Jack Block grew up fishing off Seattle’s docks, and the love of fishing stayed with him through his life. Here, he holds his catch… (Courtesy of Jack Block Jr.)  Katherine Khashimova Long Seattle Times business reporter Jack Block, who in his 28 years on the Port of Seattle Commission helped transform Seattle’s waterfront from a

For nearly two years, the families of the 346 victims who died in two tragic Boeing 737 MAX crashes championed necessary reforms to the Federal Aviation Administration’s certification process. Today, the House passed a bipartisan bill to restore the integrity of the aircraft certification process and ensure no other families experience such unthinkable loss. Watch

Whenever President Donald Trump is questioned about why the United States has nearly three times more coronavirus cases than the entire European Union, or why hundreds of Americans are still dying every day, he whips out one standard comment. We find so many cases, he contends, because we test so many people. The remark typifies

Reverse thrust, also known as thrust reversal, involves diverting the thrust of an aircraft’s engines to decelerate the plane. When reverse thrust is active, it changes the direction of airflow emanating from the engine to help slow the aircraft down. How does reverse thrust work? When an aircraft is in operation, its engines provide forward

By Gus Simonds Special to The Times Enough sweatpants and Zoom meetings already. Employees who have worked from home since March because of COVID-19 want to get back to the office to enjoy the face-to-face camaraderie and collaboration with mentors and teammates. Parents are anticipating getting their children back into the classroom. Winter is approaching, making

Before the pandemic, aviation was on course to be the UK’s most polluting sector and produce as much as 22% of global emissions by 2050. The industry is suffering from low demand due to coronavirus restrictions, but without meaningful policy changes, flight numbers and emissions are expected to return to pre-COVID-19 levels by 2024. When accounting for emissions, aviation is

Working with you to solve our Growler problem. Our mission is to protect the health and welfare of the inhabitants of the region, including the marine, migratory and endangered species, and to preserve the historic northwest communities being threatened by military jet training flights.