Half and twin ropes: Half ropes typically have a diameter of about 8 â 9mm, while twin ropes are usually about 7 - 8mm thick. Static ropes: Static ropes have a diameter of 9 â 13mm, and are commonly measured in inches, so you may see the diameter stated as 7/16â, for example.
Overview. Storax trees are fragrant deciduous small trees or large bushes that grow in mild and sheltered areas. The tree is named for the Hebrew word stacte (meaning liquid drop) because of the tree's sap or gum produced from its bark.
Distinctive features: Giant reed (Arundo donax) is a robust perennial grass nine to thirty feet tall, growing in many-stemmed, cane-like clumps, spreading from horizontal rootstocks below the soil, and often forming large colonies many meters across.Individual stems or culms are tough and hollow, divided by partitions at nodes like bamboo.hree species of Arundo occur worldwide in tropical to warm temperate regions. A. donax is often considered indigenous to the Mediterranean Basin (Hickman 1993) or to warmer regions of the Old World, but apparently it is an ancient introduction into Europe from the Indian sub-continent (Bell 1998).