Density altitude (DA) reduces aircraft performance; it's pressure altitude adjusted for temperature and humidity, and even one of these factors can significantly impact performance. High DA increases ...

Altitude and barometric pressure are closely related. As altitude increases, barometric pressure decreases, or stated another way, barometric pressure is inversely proportional to altitude. This is ...

Despite what extraordinarily overpowered quadcopters suggest, the air pressure of whatever a flying machine flys at is extremely important. Pressure is dependent on altitude and temperature, and there ...

The Federal Aviation Administration has ordered airlines to test cabin altitude pressure switches in all Boeing 737s, saying some operators have reported that both switches on several aircraft had ...

Few studies have been conducted on blood pressure monitors and their use at high altitude. This study is the first to evaluate the accuracy of an automatic blood pressure monitor in a high-altitude ...

When we go up to Flagstaff from the Valley, our car tires lose 2-3 pounds of pressure. On the other hand, potato chip bags in Flagstaff all look like they're fully inflated Mylar balloons. I gather ...

A few days ago, I saw some spectacular pictures of an underwater volcano, along with other pictures of a volcano on land. It made me realize what a difference the incredible pressure of the deep sea ...

During a recent trip to Bhutan, [electronut] wished for a device that would show the temperature and altitude at the various places he visited in the Kingdom. Back home after his trip, he built this ...

A fter departing Hartsfield-Jackson Atlanta International Airport (ATL) on Friday, November 21, Southwest Airlines Flight WN-171 had to return to base as its cabin pressurization malfunctioned. The ...