Tetracycline has been studied extensively in clinical trials, with thousands of people worldwide having been evaluated. In these studies, side effects occurring in a group of people taking the drug were documented and compared to the side effects that occurred in a similar group of people not taking the medicine.
Steel ties are utilised in nearly all sectors of the worldwide railroad systems including heavy-haul, class 1s, regional, shortlines, mining, electrified passenger lines (OHLE) and all manner of industries.
Best Answer: There are many different variables in railroad ties which determine weight. Some are concrete, some are wood. A tie made of wood can even differ greatly in weight depending on which species of wood it is. Also there are different dimensions of 16 foot ties, from 6x6 to 12x12 or even larger. Railroad ties could probably range from 300 pounds to a few thousand depending on what they are. Source(s):