Page 6 Advertisements Column 2

Otago Daily Times, Issue 18295, 12 July 1921, Page 6

Ono of the most interesting of recent discoveries in connection,with astronomy ja that tlie older a star grows the taster docs it. move A star, like an express train, takes time to gel up speed. In the ease of the train, however, it is a mutter of a few minutes only; with a star it is millions of years. The speed of the fastest star is about 300 miles per second. This celestial racer is invisible with the naked eye, but has a number of other means of identification for the convenience of astronomers. It lias been found that tlio average velocity of faint stars is much greater than that of brighter ones. Twentyeight faint ones have been found to have an average velocity of 138 miles per second, whilst the speed of nine very bright ones averaged only 80 miles per second. Judged from the standard of speed, our own sun—which would appear as a star if it was far enough away from us—is a comparative infant. Its speed is only about 12 miles per second. Tanning materials are being produced in large quantities in the Congo Stale, where a fuLy-cquipped laboratory has been established.