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09 Oct, 2023
công nghệ đẩy của NASA có thể giúp chúng ta sắp có ô tô bay...
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Flying cars (ô tô bay) could finally actually (thực ra) be on the horizon (trên đường chân trời).
Anyone who's seen "Blade Runner" or "The Jetsons" knows that you can't have "The Future" without flying cars, but despite many people's hopes (hy vọng), these flying personal transports (phương tiện bay cá nhân) have always seemed to be one step ahead of the present. Now, one company is coming out to say that it has the key to making these fantastic (tuyệt vời) fly machines a reality (thực tế), and it has a NASA-proven (chứng minh) propulsion system (hệ thống đẩy) at its heart that makes it hard to dismiss (đào thải) as easily.
The company, Applied eVTOL Concepts, presented its plan for the Epiphany Transporter this week, a vertical take-off and landing (VTOL, cất-hạ cánh theo chiều thẳng đứng) vehicle that the company said is capable of a top speed of 160 mph (258 kph) but generates less than 55 decibels of noise at 50 feet (15 meters) up, which is somewhere between the volume of a steady rainfall (50 dB) and normal human conversation (60 dB).
The secret (bí mật) appears to be the ducted thrusters along the sides and rear of the Epiphany Transporter, which researchers at NASA's Ames Research Center found in 2002 proved to produce a significant amount of thrust, the physical force that powers jet engines and helicopters (trực thăng).
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