Germany’s Flying Manta Ray Drone Is Unreal! 🐋🔥

No One is Buying the iPhone Air!!

How to calculate HVAC CFM with an anemometer.

Calculating the CFM Needed in a Bathroom | Fan Fact Friday

This clip shows how to calculate cfm through an HVAC duct using velocity. #hvac

Ukrainian Intel Special Forces Land Near Pokrovsk

Southwest Airlines, which used to let passengers choose seats at boarding, has announced several changes in recent months, including assigned seats and new fees for checked bags. Because of that, they are changing the interiors of their planes to accommodate the new seating plans and give travelers more overhead bin space. CBS News Senior Transportation correspondent Kris Van Cleave got a first look at a new Southwest plane — here’s what has changed.