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When teaching students about the effects of depth on cognition, one fun trick is to give them a couple of combination locks attached to a slate (with the combin
by redler 7y ago
When teaching students about the effects of depth on cognition, one fun trick is to give them a couple of combination locks attached to a slate (with the combinations written on the slate). Time each of them opening the locks on the surface, then time them opening another slate with the same sort of locks at 60 feet -- a depth not normally associated with awareness of cognitive changes.
- diveanon 7y agoI usually have my students come up with a couple secret handshakes that we practice on the surface beforehand. I like the combination lock too, but I've found that a lot of people struggle with the locks regardless of depth and it can throw some false positives.