Assuming mass does not also increase, then density decreases if volume increases. For example, let's say Mass= 100 and Volume= 50 Density would = 2 Now, lets increase the voluâ¦me. Mass would still = 100, and let's increase the volume to 75. Density would then equal 1.333... 2 is greater than 1.333....
Definition of wind tunnel. : a tunnellike passage through which air is blown at a known velocity to investigate air flow around an object (such as an airplane part or model) placed in the passage.
The Log Tunnel is a destination based on the log tunnel on Misty Island, made up of two pieces. The tunnel is an old tree stump hollowed out to let engines pass through. It is similar to the Quarry Mine Tunnel, where engines can go up the track and appear at the other end of the tunnel. There is also a section for engines to pass through the side of the tunnel. A Finish Line variant of the Log Tunnel is available as an exclusive part of the Dustin Comes in First Train Set. It lacks the gap in the bottom that allows a train to run underneath, and it has a wood panel with people painted on it that pops out when an engine goes through the end of the tunnel.