MossRoad
Super Moderator
- Joined
- Aug 31, 2001
- Messages
- 60,219
- Location
- South Bend, Indiana (near)
- Tractor
- Power Trac PT425 2001 Model Year
When I worked at the newspaper they bought an old theater next door and tore it down. Removed the foundation in entirety. Then started filling in lifts of dirt and compacting it with a large vibratory roller. The hole was a good 15-20' deep. While sitting in sour work area, which was right next to the construction, 3 floors up, as the roller started coming towards the outside of our building, you could feel the building start to vibrate. As it got closer, if you put your teeth together, they'd start to vibrate. Your vision would get blurry.
And the weirdest thing of all is that the 8' fluorescent tubes on the ceiling fixtures would start to oscillate at some harmonic of the vibration and it looked like the glass tubes were bowing about 2" in the middle!
It looked like the rubber pencil trick!
And the weirdest thing of all is that the 8' fluorescent tubes on the ceiling fixtures would start to oscillate at some harmonic of the vibration and it looked like the glass tubes were bowing about 2" in the middle!
It looked like the rubber pencil trick!