I came across this interesting product for structural/geotechnical monitoring of cracks in 3 dimensions. Most crack monitors are designed for monitoring in 2 dimensions, this one can measure movement out of the plane of monitoring. I like that the markings are laser-etched so the simple device should last for a long time. Price is $40/each from Quality Plus Engineering, LLC.
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Video: Fun with Falling Rocks
Thank you to my old colleague at URS Corporation, Andy Messer for sending me a link to these videos. The are from an Austrian company, Trumer Schutzbauten, that provides products and research related to rockfall fences. The first video is presumably to show the hazards of camping next to hazardous rock slopes…good fun! Click through for the videos.

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Video: DeWind One-Pass Trenching Animation of a Collection Trench
June 6, 2016
rockman
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,[Editor] From their video description: [/Editor]DeWind One-Pass Trenchers can install complete DEEP Groundwater Collection Trench Systems in a Single Pass Under the Groundwater Table! No Open Excavations-No Dewatering – No Pumping- No Treating discharge water- […]

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APE Pile Driving and Helical Pile Introduction Video
March 10, 2014
rockman
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