Schnort

Schnort t1_j4olga5 wrote

Reply to comment by Ok-disaster2022 in 3D printing reaches new heights with two-story home by speckz

You don’t need interior walls because the exterior walls aren’t strong enough.

You need interior walls because the joists aren’t stiff enough to support the ceiling and the exterior walls need something to keep them from bulging/falling outward as the weight of the roof transfers to them.

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Schnort t1_ivztnnf wrote

Reply to comment by Spaceguy5 in NASA leaders recently viewed footage of an underwater dive off the East coast of Florida, and they confirm it depicts an artifact from the space shuttle Challenger by marketrent

Very possible. Looking closer at the video shows a veneer of black around the edges of the tiles near the buried surface.

I would have assumed the entire tile was made from a black ceramic, and not just the outer veneer.

I'm assuming the tops weren't ripped off, but just eroded by sand and ocean currents. (You can see rounded cavities and voids typical of erosion in the video)

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Schnort t1_ivzsu6t wrote

Reply to comment by Spaceguy5 in NASA leaders recently viewed footage of an underwater dive off the East coast of Florida, and they confirm it depicts an artifact from the space shuttle Challenger by marketrent

The entire bottom of the shuttle had black tiles, so this piece is likely not from the bottom (unless the black tiles bleached in their stint in the ocean or they stopped using black, but I don't think they did).

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