Using Gravity as Glue

Michael Grab, whose work we have shared previously, is still working his magic with rocks. Stacking stones with the upmost precision and patience, he then destroys his precarious creations in ways that look amazing when played backwards, as shown towards the end of the video above. Grab shares with thisiscolossal:

Balance requires a minimum of three contact points. Luckily, every rock is covered in a variety of tiny to large indentations that can act as a natural tripod for the rock to stand upright, or in most orientations you can think of with other rocks. By paying close attention to the vibrations of the rocks, you will start to feel even the smallest “clicks” as the notches of the rocks are moving over one another. In the finest “point-balances,” these clicks can be felt on a scale smaller than millimeters, and in rare cases can even go undetected, in which case intuition and experience become quite useful.

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Riding the Slackline

A slackline at Xandari (photo credit: S. E. Inman)

2014 marks the 150th anniversary of the land grant that yielded Yosemite National Park (Seth will be talking more about this in a post on the topic). But why should this matter for a post on slacklining? Well, as it turns out, Yosemite was one of the early hotbeds for the development of this increasingly popular outdoor activity. In celebrating Yosemite’s anniversary, we can also take a moment to appreciate Continue reading