00:00The NASA Langley Hypersonic Wind Tunnel unleashes a brutal 4,000-degree blast right now.
00:07Superheated air screams through the narrow steel throat,
00:11generating friction that vaporizes standard titanium components instantly.
00:16Common Sense says heat-resistant ceramics should line the pipe,
00:20but brittle tiles explode under extreme pressure.
00:25Engineers instead use solid copper alloy throats
00:29that intentionally sacrifice themselves by eroding millimeters away during every run.
00:34Copper sucks away thermal energy so fast
00:37that the nozzle survives while shedding its skin before the test ends,
00:42meaning the NASA Langley Hypersonic Wind Tunnel unleashes a brutal 4,000-degree blast right now.
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