![]() Jack Cohen was paid to sort out the astronomical confusions in Annie’s books, but couldn’t do it. But in another incident, a dragonrider leaps into the saddle with the cry, “The Red Star is overhead!” He then teleports half-way round the planet and raises the alarm with the cry, “The Red Star is overhead!” The late Dr. One famous example was Anne McCaffrey’s ‘It was morning on Pern’ – as indeed it is on any planet, somewhere. TMA-1 excavation, looking south, sunrise approaching from right (east)Ĭonfusion between time zones occurs often in SF. 1 is not compatible with an upcoming sunrise at Tycho, unless Floyd is going to be delayed at Tycho for four Earth days or more.įig. As Tycho is near the centre line of the Moon’s disc (Fig. So the Earth’s phase in that image is waning gibbous, and the corresponding lunar phase would be waxing crescent. 1 and if we could make out the features on the globe of the Earth, Antarctica would be uppermost. It’s a coincidental relationship, like the one which makes the Sun and Moon appear the same size at the current evolutionary state of the Earth-Moon system.) As Clavius is in the southern hemisphere of the Moon, south is at the top of Fig. Clarke points out that from the Jupiter-Io L1 point, where the Discovery is parked between the two books and films, Io and Jupiter would appear to be the same size and would make a perfect circle if their images were joined together without adjusting the scale. The phases of the Earth, seen from the Moon, and the Moon, seen from the Earth, are always complementary, adding up to a complete circle. The Moonship Aries lands him in the crater Clavius, near the south pole of the Moon, and he’s taken north by Moonbus to Tycho, where the Sun rises over the monolith and activates it just as he arrives. Heywood Floyd, who’s being rushed to the discovery site in the crater Tycho of a black monolith (Tycho Magnetic Anomaly 1). However, that closer examination has turned up more issues. Martyn Fogg, whom I cited in my review of Stephen Baxter’s Galaxias (ON, 30 th August), suggested that those shadows are features of the terrain rather than the light source. 2001, a Space Odyssey, Moonship approach to Clavius crater baseĮxamining the still from 2001, a Space Odyssey more closely, I argued that the rim of the crater behind the ship, and its shadow, both indicate that the light is coming from the Sun, out of view to the right, so the phase of the ship should be the same as the Earth’s. All of that electric power was expended in the one radio signal.Fig. In the novel, some scientists speculate that its magnetic field came from large electric current, circulating in a system of superconductors for millions of years as an energy-storage mechanism. ![]() Its powerful magnetic field disappears immediately. The TMA-1 was dug up during the lunar night, but after sunrise and its exposure to direct sunlight, TMA-1 emits a single powerful burst of radio waves - aimed at Iapetus (Saturn) in the novel, and aimed at Jupiter in the motion picture. However, in the novel, Clarke suggests that this sequence or ratio extends past the three known spatial dimensions into the much higher dimensions, like this: 16 : 25 : 36. When the monolith is excavated and examined, it is found to be a black parallelepiped whose sides extend in the precise ratio of 1 : 4 : 9 ( 1² : 2² : 3²). Astronauts find that this magnetic anomaly is caused by an alien monolith buried about 15 meters below the surface. The name Tycho Magnetic Anomaly-1 (also known as the TMA-1) refers to the strong magnetic field found somewhere in the lunar Crater Tycho by an American scientific satellite.
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