Chinese researchers claim that by using an air-breathing engine that burns a mixture of ethylene and coal powder, they can significantly reduce the cost of commercial hypersonic flights, as reported first by the South China Morning Post (SCMP). (Photo : Tom Tschida/Nasa Photo via Getty Images)IN FLIGHT – MARCH 27: The second X-43A ...
View more: Chinese Scientists Are Using Ethylene and Coal to Power Hypersonic Travels