I keep on finding different definitions, even opposing definitions, of entropy! But still something hopeful in hypersonic shielding:
techxplore.com
![techxplore.com](/proxy.php?image=https%3A%2F%2Fscx2.b-cdn.net%2Fgfx%2Fnews%2F2024%2Fscientists-announce-br.jpg&hash=e627a0fc1b51334b5e84383f40cd579c&return_error=1)
Scientists announce breakthrough in hypersonic heat shield
In a giant leap for future hypersonic flight, Chinese scientists have turned to multi-scale technology to develop a revolutionary new material that has achieved record high marks in tests for vital strength and thermal insulation properties.