Search results
Results from the WOW.Com Content Network
Timber raft by Frances Anne Hopkins, 1868.. Unlike log driving, which was a dangerous task of floating separate logs, floaters or raftsmen could enjoy relative comfort of navigation, with cabins built on rafts, steering by means of oars and possibility to make stops.
A raft is any flat structure for support or transportation over water. [1] It is usually of basic design, characterized by the absence of a hull . Rafts are usually kept afloat by using any combination of buoyant materials such as wood , sealed barrels , or inflated air chambers (such as pontoons ), and are typically not propelled by an engine.
The sheepskin raft is generally composed of thirteen sheepskin leather bags. First, wood is used to make the frame of the boat. In most cases people will use willow. Then, two willow branches are cut flat. Several nests are chiseled out on the flat surface, and the willow branch are inserted into it. The frame is then tied up with ropes.
A log jam is a naturally occurring phenomenon characterized by a dense accumulation of tree trunks and pieces of large wood across a vast section of a river, stream, or lake. ("Large wood " is commonly defined to be pieces of wood more than 10 cm (4 in) in diameter and more than 1 m (3 ft 3 in) long.) [ 1 ] Log jams in rivers and streams often ...
Totora reed fishing boats on the beach at Huanchaco, Peru. Reed boats and rafts, along with dugout canoes and other rafts, are among the oldest known types of boats.Often used as traditional fishing boats, they are still used in a few places around the world, though they have generally been replaced with planked boats.
The English word "catamaran" is derived from the Tamil word, kattumaram (கட்டுமரம்), which means "logs bound together". However, the original kattumaram did not refer to double-hulled boats at all, but to a type of single-hulled raft of the Tamil people made of three to seven tree trunks lashed together.
Ancient boat building methods can be categorized as one of hide, log, sewn, lashed-plank, clinker (and reverse-clinker), shell-first, and frame-first. While the frame-first technique dominates the modern ship construction industry, the ancients relied primarily on the other techniques to build their watercraft. In many cases, these techniques ...
A boat differs from a raft by obtaining its buoyancy by having most of its structure exclude water with a waterproof layer, e.g. the planks of a wooden hull, the hide covering (or tarred canvas) of a currach. In contrast, a raft is buoyant because it joins components that are themselves buoyant, for example, logs, bamboo poles, bundles of reeds ...