Schwinn Tango Review. Overall, I liked the value for the dollar but the performance of the bicycle was way below par due to designed limitations. Top speed is around 10 mph unless you are Lance Armstrong (BMX type gearing).verall, I liked the value for the dollar but the performance of the bicycle was way below par due to designed limitations. Top speed is around 10 mph unless you are Lance Armstrong (BMX type gearing).
Bismuth is a non-toxic heavy metal with a specific gravity of 9.71 (when alloyed with 3 percent tin). Compared to lead with a specific gravity of 11.12, Bismuth is 87 percent as dense as lead. Steel, with a specific gravity of 7.86, is only 71 percent as dense as lead.
Bismuth is rarely found in nature in its elemental form. Of growing interest in rock shops, however, are laboratory-grown bismuth crystals. These crystals, while not natural, are nonetheless very interesting and sought after by the mineral hobbyist, collectors and rock hounds.o as bismuth crystallizes, its solid form floats above the liquid. This effect is only found in 3 other cases (water, gallium, and germanium).Bismuth is a white, crystalline, brittle metal with a pinkish tinge. It occurs in a native state. Bismuth is the most diamagnetic (repels magnets) of all metals.