IN this, the third edition, Dr. Ewing has thoroughly revised his well-known text-book, and to some extent he has rewritten certain chapters; for example, the chapter on steam turbines is new, and ...

This isa critical distinction, because the historical technological innovations in engines (e.g. from Watt to Newcomen steam engines) merely enabled more efficient consumption of coal; they did not ...

Their advanced engine technology may have taken decades to reach the point of sustainable testing, but it held the promise of one day delivering true spaceplanes able to take off from a runway and ...