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Switchbacks

All articles tagged with #switchbacks

Switchbacks Explain Why East Coast Trails Feel Harder Than West Coast Counterparts
outdoors2 months ago

Switchbacks Explain Why East Coast Trails Feel Harder Than West Coast Counterparts

The article argues East Coast hikes are typically tougher than West Coast routes largely because East Coast trails lack switchbacks, resulting in steeper climbs, whereas West Coast paths—designed in part for pack animals—use switchbacks to ease ascent. It highlights brutal East Coast sections like Devil’s Path (Catskills), Presidential Traverse (White Mountains), and Precipice Trail (Acadia) and contrasts them with gradual climbs on Mount Whitney and the Pacific Crest Trail. Anecdotes from hikers and thru-hikers are cited to support the view that AT climbs can be more physically demanding per mile, though overall difficulty varies by trail. The takeaway is that switchbacks are a key factor in perceived difficulty, and the best way to know which coast is harder is to hike both.

Parker Solar Probe Dives into Corona to Untangle the Sun’s Heat Mystery
space2 months ago

Parker Solar Probe Dives into Corona to Untangle the Sun’s Heat Mystery

NASA’s Parker Solar Probe has repeatedly traversed the Sun’s corona—the outer atmosphere where temperatures soar above a million degrees—giving in-situ measurements that deepen the mystery of why the corona is so hot. A December 2024 near-surface pass (6.1 million km from the Sun, traveling ~692,000 km/h) confirmed the craft’s survival and enabled direct plasma, magnetic-field, and flow readings. The results keep the heating question open, highlighting two leading ideas—wave heating and small-scale magnetic reconnection (nanoflares)—neither of which is yet confirmed as dominant. The mission also finds switchbacks (abrupt magnetic reversals) abundant in the near-Sun solar wind but apparently absent inside the corona, refining how the wind is accelerated and fed by coronal processes. With repeated passes through late 2026 and NASA’s review looming, Parker’s data are helping to distinguish between competing explanations, but the exact energy transfer powering the corona remains unresolved.