What is the piece of wood that rows the boat called?

A paddle is a rowing tool. Its upper end is a round rod, which is conducive to hand holding, called grip rod; The lower end is plate-shaped, called paddle board, which is used to repel water, using Newton's third law in physics.

Reaction force through water waves.

Move the ship forward. The oar, in ancient China, was called "楫" or "棹". (Depending on the length, the long oars are called 棹, and the short oars are called 楫).

Our country is the hometown of the "boat" and the hometown of the oar. Hemudu culture more than 10,000 years ago.

Neolithic, with canoes.

At the same time, the paddle also came into being, and it quickly took shape. The paddles of that time were very different from those of today: the grip was shorter, and the paddle board was narrow and long.

According to experts, the reason for this is that the way people rowed at that time was very different from today, when people rowed with a pole in one hand and a paddleboard in the other. However, the oars were neatly made and beautiful, with beautiful carved patterns. In contrast, the Middle East.

The oars of the ancestors of Western Europe and the American continent were relatively rough in workmanship.

to the Spring and Autumn Period and the Warring States Period, Qin and Han Dynasties.

In the two dynasties, with the development of the prototype of the navy, the "Boat Division", and the "eastward crossing" activities launched by the emperors many times in search of the elixir of life, the development of oars was promoted. The oars gradually tend to be larger, the grip is longer, the paddle board is shortened and thinner, and it is more convenient and powerful to use, which speeds up the speed of water navigation. After the Jin Dynasty, the oars have been basically shaped in appearance, but only in volume and surface area.

It is still increasing, and the scale of the oars has gradually increased, from the original one boat and two oars, to the development of "one boat (the volume of the boat at this time is already relatively large) oars stacked", that is, the use of two rows of oars. Because manual paddling was already very inconvenient, sophisticated machines to control paddle movement had already appeared on ships at that time.

Now we don't use large wooden boats anymore, and at the same time, the oars are gradually disappearing from our view. Now the paddle is mainly popular on various cruise ships, bringing tourists a classical and chic charm; Canoe races are also preserved at the Olympics. However, the oars used in the competition are carefully designed, and the materials and proportions are very different from the antique paddles we see on the cruise ships.

2. The boat is rowed in the water by oars, and the boat generally has two oars, one on the left side of the hull and one on the right side.

The rudder behind the big steamer.

Both a wooden boat and a wooden boat are available. The measure words of wooden boats can be used as "only", "strip", "ship", etc.

Since the ship is elongated, it can be described by the measure word "strip", and the measure word "only" can be used to calculate the number of objects, and the measure word "ship" which refers specifically to the ship.

There are certain rules for quantifiers to match specific nouns, such as all small and round things, such as pearls, rice, grapes, pebbles, etc., can use the quantifier "grain"; For anything that is thin and long, such as bamboo poles, spears, cigarettes, etc., you can use the measure words "branch" and "root".

The use of these quantifiers not only indicates the unit, but also indicates the shape of the thing, and makes it appear concrete. Writers use the characteristics of quantifiers to create concise and vivid language such as "a bright moon, a hook and a waning moon, a crescent moon, a flat boat, and a wisp of flute".

This one is not much of a problem, and it can also be a wooden boat.