The definition of the meter (m), which is the international unit of length, was once defined by a physical artifact - two marks inscribes on a bar of platinum-iridium. Today, the meter (m) is defined in terms of constant of nature: the length of the path traveled by the light in vacuum during a time interval of 1/299, 792, 458 of a second. The Length - Evolution from Measurement Standard to a Fundamental Constant explains the evolution of the definition of the meter.
Rainbow flag (LGBT movement) For other uses, see rainbow flag. The rainbow flag is a symbol of lesbian, gay, bisexual, and transgender (LGBT) pride and LGBT social movements in use since the 1970s. LGBT symbols. The rainbow flag, commonly the gay pride flag and LGBT pride flag, is a symbol of lesbian, gay, bisexual, and transgender (LGBT) pride and LGBT social movements.
What the Bible Says About Rainbows. Throughout Scripture, the rainbow symbolizes Godâs glory â the radiance of his beauty, holiness, and perfection. Like the appearance of the bow that is in the cloud on the day of rain, so was the appearance of the brightness all around.f God put a rainbow in the sky to symbolize the constraint of his anger, then he is still angry, and justly so because men are still sinners, as they were before the flood. One day, his anger will be restrained no more.