ZenGold is the newest gold backed crypto-currency to hit the markets as ICO set for May 26. Last week the nation of Dubai announced the creation of a blockchain based crypto-currency that would be backed by physical gold, and would be compliant with the new dictates of Sharia law finance.
A gabion wall is a retaining wall made of stacked stone-filled gabions tied together with wire. Gabion walls are usually battered (angled back towards the slope), or stepped back with the slope, rather than stacked vertically.
Gabions are also used as fish screens on small streams. Gabion stepped weirs are commonly used for river training and flood control; the stepped design enhances the rate of energy dissipation in the channel, and it is particularly well-suited to the construction of gabion stepped weirs.