If a sword is either exceptionally sharp or very heavy, it can cut through bone. Many swords could take off an arm, for example, but the bone would not have been severed; instead, it would have shattered in most cases. A sword cannot slice through an object such as wood or metal easily, although it might be able to do some superficial damage.
The weight of a sword is important because it allows its wielder to control it more effectively. Too light a sword will not be effective for defense, while a too heavy one will be difficult to handle. Most swords fall into the range of weights from 5 ounces (140 grams) to 10 pounds (450 grams), with some heavier and some lighter. The typical English longsword is about 9 inches (23 cm) long and weighs around 7 ounces (200 grams).
There are many different types of swords used throughout history, each with its own advantages and disadvantages. The choice of sword depends on several factors such as price, availability of materials, how much force is needed, etc. In general, swords are made out of two main types of material: steel and wood. Both come in various shapes and sizes. Swords are often expensive due to the quality of materials and workmanship involved.
Swords are commonly used as weapons in wars and during battles.
Can a katana truly chop a person in two as in the movies? Yes. If you think about it, it doesn't take much strength to accidentally slash oneself rather deeply, therefore an intended cut can surely cut through skin, muscle, and bone, especially in the hands of a competent swordsman. In fact, several historical swords have been found with cuts deep enough to go through the hand and arm.
However, this does not mean that they are easy to do. The blade must be held with complete mastery of the craft if it is to produce clean, effective cuts. Also important is the skill of the fighter using the sword. Even with knowledge of martial arts, few people are capable of producing such powerful thrusts or accurate swings with the sword that they will go all the way through their opponent's body without cutting themselves out the other side.
In addition, there is no evidence that any sword has ever chopped its user down to size. Such powerful strokes may indeed kill the opponent immediately, but they also often cause serious injury to the wielder himself. A skilled swordsman can avoid his weapon going all the way through his body, but it is difficult and time-consuming to do so.
Finally, consider what would happen if every single one of these swords were used to chop down all the trees in our forests. There would be no more trees!
It's physically conceivable; it's just extremely unlikely. Historically, most swords were neither broad or sharp enough to make a clean cut clean enough to sever a man in half. Not to mention that most individuals are incapable of swinging a sword with enough force to cut someone in half. The few who could do so would be well-muscled men of strong arms and heavy bones.
The only real way to cut a person in half is with an explosive weapon. Some traditional Chinese swords did have sharp points that might have been capable of doing so, but they were uncommon features on such weapons. Even if a sword had both a wide blade and a sharp point, it would still be unable to cut a man in half because even though you can divide by two, you cannot get a whole number from the result. A sword can only cut in halves, quarters, eighths, etc.
The best way to cut someone in half is with two blades joined at the hilt. The one advantage a single sword has over a double one is that it can be used as a dagger if you need to kill someone covertly. Otherwise, they're equal tools for making deep cuts across the body.