There are three main types of magnetometer used to measure magnetic anomalies: : 162–164 : 77–79 To measure anomalies, magnetometers need a sensitivity of 10 nT or less. The total field ranges from 25,000 to 65,000 nanoteslas (nT). Magnetic anomalies are generally a small fraction of the magnetic field. The magnetic variation ( geomagnetic reversals) in successive bands of ocean floor parallel with mid-ocean ridges was important evidence for seafloor spreading, a concept central to the theory of plate tectonics. Mapping of variation over an area is valuable in detecting structures obscured by overlying material. In geophysics, a magnetic anomaly is a local variation in the Earth's magnetic field resulting from variations in the chemistry or magnetism of the rocks. Though the monolith could be approached without incident, anyone who did so found that their fingers skidded across the absolutely frictionless surface, repelled from the monolith by some invisible barrier, making it impossible to actually touch the monolith itself.The Bangui magnetic anomaly in central Africa and the Kursk magnetic anomaly in eastern Europe (both in red) However, the most plausible theory, and perhaps the most frightening, is that the monolith is some sort of alarm, and it has been triggered, sending a message to the alien intelligence that created the Tycho Monolith, and alerting it to our presence.īy the year 3001, the Tycho monolith had been moved to the United Nations building on Earth, where it served as a reminder that mankind is not alone in the cosmos. Several theories were put out, such as the monolith might be a storage unit, or perhaps some solar-powered energy generator. Scientists hypothesized about what the purpose of the monolith might be. The Tycho Monolith gave off a single, very powerful, radio emission, aimed directly at Saturn (Jupiter in the film). Soon after the picture was taken, the sun rose up from behind the lunar horizon. The crew then gathered together for a photograph to be taken of them in front of the monolith. When he arrived, he approached the black enigma and reached out to touch it. Soon after arrival, he was shuttled to the TMA-1 excavation site. Heywood Floyd, chairman of the NCA, was taken to Clavius Base to investigate the monolith. All communication with Clavius had been cut for several days, and a Soviet shuttle had been denied an emergency landing at Clavius. The cover story was that an epidemic of unknown origin had broken out at Clavius Base, though most members of the NCA found this cover story to be rather embarrassing. "After three million years of darkness, TMA-1 greeted the lunar dawn."Ī cover story was produced by the National Committee for Astronautics, as the knowledge of TMA-1 would most certainly cause some cultural shock. This Monolith was officially dubbed Tycho Magnetic Anomaly One, or TMA-1.ĭr. Excavation at the site unveiled the three million year old black monolith which was buried 20 feet below the lunar surface. It was first assumed to be a giant nickel-iron meteorite, but not even that could produce such an intense field. American survey satellites discovered a strong magnetic field near the crater Tycho. The Tycho Monolith was first discovered in 1999. Its artificial construction suggests that it was left behind by “monolith aliens”. TMA-1 is fashioned to the exact proportions of 1:4:9, and is dated to about four million years old. Clarke’s 2001: A Space Odyssey and its film adaption. Tycho Monolith, designated TMA-1 (Tycho Magnetic Anomaly One), is a large black crystalline monolith found on Earth's moon in Arthur C.
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