Kids of any age love to read fairy tales because the storyline never limits the possibility that anything could happen. But are the most magical moments from some of our favorite stories actually possible? Basic physical principles and recent scientific research suggest that what readers might mistake for fantasies and exaggeration could be rooted in reality.So suspend your imagination for a moment, and look, as a hard-core scientist might, at the following fairy tale—The Arabian Nights. One of the most exciting objects found in fairy tales is the flying carpet. In tales from a wide variety of cultures, including The Arabian Nights, these tapestries (挂毯) take flight to carry people vast distances. Flying carpets are clearly impossible, right?Three scientists recently published a paper in the journal Physical Review Letters showing that there are conditions under which a carpet could fly. They used the basic laws of physics to show that a small, thin carpet could fly if the air were vibrating at the right frequency, much like how a piece of tissue paper floats softly to the ground when it is dropped. Their calculations showed that small waves of air in repeated fast pulses could steer a carpet at a speed of around one foot per second.Don't expect to see Aladdin flying by anytime soon, but the scientists write that all of their conditions are within the realm of possibilities in nature and in technology. Making a heavy carpet fly would, of course, require a much more powerful engine, and our calculations suggest it will remain in the magical, mystical, and virtual realm as it has existed for millennia (千年).Perhaps some fairy tales are more grounded in reality than others. Or maybe these precious stories are exactly what we thought they were. An idea is fertilized by the imagination and expanded beyond what seems possible. Or maybe science has come so far over the years that scientists are looking beyond the problems of the physical world and into the imaginations of children for their inspiration.67. Which of the following is true about the flying carpet according to the passage? A) Flying carpets are quite possible, thanks to the advance of science. B) The faster pulses the waves of air repeat, the faster a carpet can fly. C) Certain frequency of vibrating air makes a flying carpet possible. D) Carpets can fly under certain conditions soon.

Kids of any age love to read fairy tales because the storyline never limits the possibility that anything could happen. But are the most magical moments from some of our favorite stories actually possible? Basic physical principles and recent scientific research suggest that what readers might mistake for fantasies and exaggeration could be rooted in reality. So suspend your imagination for a moment, and look, as a hard-core scientist might, at the following fairy tale—The Arabian Nights. One of the most exciting objects found in fairy tales is the flying carpet. In tales from a wide variety of cultures, including The Arabian Nights, these tapestries (挂毯) take flight to carry people vast distances. Flying carpets are clearly impossible, right? Three scientists recently published a paper in the journal Physical Review Letters showing that there are conditions under which a carpet could fly. They used the basic laws of physics to show that a small, thin carpet could fly if the air were vibrating at the right frequency, much like how a piece of tissue paper floats softly to the ground when it is dropped. Their calculations showed that small waves of air in repeated fast pulses could steer a carpet at a speed of around one foot per second. Don't expect to see Aladdin flying by anytime soon, but the scientists write that all of their conditions are within the realm of possibilities in nature and in technology. Making a heavy carpet fly would, of course, require a much more powerful engine, and our calculations suggest it will remain in the magical, mystical, and virtual realm as it has existed for millennia (千年). Perhaps some fairy tales are more grounded in reality than others. Or maybe these precious stories are exactly what we thought they were. An idea is fertilized by the imagination and expanded beyond what seems possible. Or maybe science has come so far over the years that scientists are looking beyond the problems of the physical world and into the imaginations of children for their inspiration. 67. Which of the following is true about the flying carpet according to the passage? A) Flying carpets are quite possible, thanks to the advance of science. B) The faster pulses the waves of air repeat, the faster a carpet can fly. C) Certain frequency of vibrating air makes a flying carpet possible. D) Carpets can fly under certain conditions soon.