the.com/hollow
Emptiness with structural genius — nature's trick for being strong without being heavy.
means Having an empty space inside, rather than being solid all the way through; also used of sounds that echo with that emptiness, or feelings that ring false and unsatisfying.
from From Old English 'holh,' meaning a hollow place or hole, related to 'hol' (hole) and to broader Germanic words for cavities and concavities. The kinship is old and deep: a hollow was first a dip in the land, a hole in the ground, before the word stretched to describe anything scooped out, empty within, or — by a fitting leap — empty in spirit.
- bird bones
- Hollow inside, reinforced with struts for flight
- bamboo logic
- Hollow stems bend in storms without snapping
- sound
- Empty space is why instruments resonate at all
- steel beams
- Engineers hollow them to save weight, keep strength
- word origin
- From Old English holh, meaning a hole or cave
mammoth cave — largest cave system in the world at 426 km long, located in kentucky usa
carlsbad caverns — massive underground chambers in new mexico with big room chamber spanning 8.2 acres
waitomo caves — glowworm-lit cave system in new zealand's north island, famous for bioluminescent ceilings