Imagine that you’re lifted and sailing toward a puff. You’re all good, but your luck runs out when you’re headed before you get to the puff. Now you have a dilemma. Should you tack off the header to ...

High-speed train operations confront a range of aerodynamic challenges, particularly when traversing confined tunnel environments. The phenomenon of tunnel pressure waves, which originates from the ...

A distance-time graph shows how the distance travelled by an object changes over time and can be used to calculate the speed of the object. A sloping line on a distance-time graph shows that the ...