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But Eldred is in an elevated class of its own because the slope runs for a long stretch ... some suffer from high anxiety after they park on the steep slant and struggle with gravity to open ...

Older adults are better at interpreting the correct slope of a hill than young adults ... Why study the perception of hill slant? Hills look very steep to humans compared to their true slant.

people consistently overestimated the slant by 18-19 degrees, regardless of whether they were looking at a set of stairs or an escalator, from the top or from the bottom. The actual slope of the ...