Its threads have tiny notches on their upper surfaces that grab the plastic before it can slide down the helix.
FORBES: Magazine Article
Colorful sheets of fabric were tied to upper floors of the wreckage, presumably so those inside could climb or slide down and escape.
NPR: 87 Dead In Bangladesh Garment Factory Collapse
The upper level opens to the main patio, garden and pool with attached water slide.
FORBES: Pixar Co-Founder Ed Catmull Selling Picturesque California Estate
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