The sniper starts from the bright sword escape period

Chapter 420 Enlighten the Prince to Carve Rifling

Of course, Zhu Biao not only looked at it, but also stopped the spinning top with his hand, and then turned it again, repeating this several times.

Zhu Biao even took a freshly made Mini lead bullet and spun it on the ground like a top.

Finally, Zhu Biao opened his mouth and said to Bai Lixiu:

"Sir, Biao found that the top will stand up only when it is spinning, and it will rotate stably in place, and as long as it keeps spinning, no matter how you touch it, it will not be knocked down, so do you want to tell Biao? As long as the buckshot is rotated out of the firecracker, its accuracy will be improved?"

After Biao finished speaking, Bailixiu sighed in his heart. Although this ancient man did not have nine years of education, he is not stupid as long as he is reminded. Bailixiu also praised now:
"His Royal Highness is really smart and you will understand with a little reminder!"

It's just that Bai Lixiu asked in a different tone after speaking:
"Then, has His Highness the Crown Prince thought of any way to spin the lead shot from the firecracker?"

Bailixiu did not continue to delve into the spinning top, such as asking Zhu Biao why the spinning top would not fall over.

After all, Zhu Biao couldn't tell what the turning effect was.

As for the gyro effect, that is, when the gyro rotates, it not only rotates around its own axis as "self-rotation", but also makes a conical motion around a vertical axis.The speed of the "rotation" movement of the top around its own axis determines the swing angle of the top.

Under certain initial conditions and a certain external torque, the gyro will continue to rotate around another fixed rotation axis while continuously rotating. This is the precession of the gyro, also known as the gyro effect.

In physics, a rigid body rotating at a high speed around a fulcrum is called a gyroscope. As an example of a rigid body rotating around a fixed point, gyro motion has attracted long-term attention from the scientific community, and it is an important chapter in theoretical mechanics.Scientists have made use of the mechanical properties of gyroscopes to make gyroscope devices with various functions, such as gyro compass and directional indicator.

And in [-], Western physicist Leon Foucault invented the world's first modern gyroscope.Since its birth, the gyroscope has been the core technology of major countries, because it can provide accurate information such as azimuth, pitch, position, speed, acceleration, etc., and the laser gyroscope can be directly connected to the computer system and is widely used in fighter planes, missiles, etc. , submarines and other weapons and equipment.

Of course, it is too early to talk about advanced gyroscopes with Zhu Biao at this stage. After all, with the current weapon technology, Bailixiu only needs to let Daming produce the Maxim machine gun, so that the vicious Xiongnu in Beiyuan can Hundreds of years in advance, they have become nomadic people who can sing, dance and be hospitable.

Moreover, Maxim at this stage is also an existence that can sweep the world. As long as Daming can produce Maxim, the world will tremble under Daming's feet.

As for the method Bai Lixiu said to make the bullet rotate, it is naturally to engrave the rotating rifling on the barrel.

In fact, the period when the rifling appeared was also very early. At least before the Mini bomb, there were rifled flintlock guns, but because of the rifling, there were no smoothbore flintlock guns to load lead bullets. After all, the rifling The appearance of the lead bullet became more difficult to plug, and it was not improved until the appearance of the Minie bullet.

We must know that the earliest musket with rifling in the barrel was born in Germany in the early fifteenth century, but at that time it was just a straight groove, which was to make it easier to load bullets from the muzzle.

According to literature records, Italians had guns with spiral rifles as early as [-].

Spiral rifling can make the projectile rotate and fly stably in the air, improving shooting accuracy and range.

However, due to the high cost of rifling and the inconvenience of loading ammunition from the muzzle, the armies of many countries are reluctant to equip guns with spiral rifling.

Therefore, until the appearance of the Mini bomb, most armies still used smoothbore guns. After all, compared with line guns with less than one round per minute, the rate of fire of two or three rounds per minute can be regarded as fast. Many people still choose the former speed and accuracy.

This is like on the modern battlefield, there are always more submachine guns and machine guns than sniper rifles.

Of course, there are still marksmanship masters who like this kind of thread gun that is very troublesome to load.

And why engraved rifling on the inner wall of the barrel can make the projectile spin?Here we need to know a saying: squeeze into the rifling.

The reason why the bullet can rotate according to the direction of the rifling is because the gunpowder gas exerts a huge thrust on the axial direction of the projectile, forcing the projectile to embed the negative line of the gun bore in the radial direction.At the same time, it is anti-embedded by the positive line, just like "squeezing in".

On the contact surface, the projectile is rigidly constrained and forced to rotate along the trajectory of the rifling, which gives the projectile an initial attitude when it leaves the bore.

The premise of all this is: the surface of the projectile must be close to the inner wall of the barrel, but in the era of front loading, this kind of interference fit has brought great troubles to the gunner, and sometimes even use the cleaning rod as a chisel, chiseling with a hammer, In order to successfully reload.

In contrast, although the smoothbore gunner does not have the trouble of loading the bullet, he has the trouble of firing it-the diameter of the spherical bullet is smaller than the caliber of the barrel, and the loading is convenient.

However, the projectile is easy to slip out when hitting the depression angle, so some flexible fillers must be used to plug the gap between the live bullet and the wall, and at the same time, it can also seal the barrel and reduce the leakage of gunpowder gas.

Rifled guns did appear later than smoothbore guns. After all, rifled guns were also derived from the basis of smoothbore guns.

The breech-loading gun, which is loaded with ammunition at the back of the firearm, only appeared at the end of the eighteenth century. Before that, the ammunition was loaded from the front of the barrel, and the gunpowder and projectile had to be compacted with a "bullet delivery stick", which was extremely cumbersome.

After the whole process is tossed, it is considered efficient to be able to fire once a minute.

However, what Bailixiu didn't expect was that Zhu Biao actually answered his question. After thinking for a while, Zhu Biao said to Bailixiu:
"Sir, I remember when I was playing with a top when I was a child, I used the rope on the whip to wrap several times around the top, and then the top spun smoothly when I pulled it suddenly, so I wanted to make the firecracker and the top spin. To make the buckshot spin like a whip, is it possible to engrave a spiral mark in the tube of the firecracker, so that when the lead bullet is shot out by the firecracker, wouldn't it be possible to drive the lead bullet to spin along the trace of this spiral? ?”

Bai Lixiu nodded happily when she heard what Zhu Biao said:

"The prince is really a great talent, but everything is true knowledge, so the prince thinks this method is feasible, so let's prove it with facts!"

Bai Lixiu looked at the sky after finishing speaking, and then said to Prince Zhu Biao:

"It's getting dark today, so I'll go back first! Looking forward to the finished product of His Royal Highness!"

After all, Bai Lixiu jumped a few times without waiting for His Highness the Prince's reaction. With the help of the high wall of the war game, she left the war game with just a few jumps.

(End of this chapter)