Olympic medal Altius, Fortius" features on four Winter Games medals but does not appear on any Summer Games medal. For three events in a row, hosts of the Winter Games included different materials in the medals: glass (1992), sparagmite (1994), and lacquer (1998). It was not until the 2008 Summer Olympics in Beijing, China that a Summer Olympic host chose to use something different, in this case jade. While every Summer Olympic medal except for the 1900 Games has been circular, the shapes of the Winter Games have been considerably more varied. The Winter Games medals are also generally larger, thicker, and
Faster-than-light expansion rate of our universe as time moves on. In 1977, a paper on Heim theory theorized that it may be possible to travel faster than light by using magnetic fields to enter a higher-dimensional space. The possibility that Lorentz symmetry may be violated has been seriously considered in the last two decades, particularly after the development of a realistic effective field theory that describes this possible violation, the so-called Standard-Model Extension. This general framework has allowed experimental searches by ultra-high energy cosmic-ray experiments and a wide variety of experiments in gravity, electrons, protons, neutrons, neutrinos, mesons, and photons. The