There was a sound first, and the shells arrived later, indicating that there was no supersonic.

However, the speed of sound in the world is about 500 meters per second, and Ye Han has measured it, and the error is ± 50 meters. Even if it's not excessive, it's enough.

Right now, for example, it's almost to the point where he can only look back in horror and watch the round cannonballs approaching quickly, but he has no time to dodge at all.

Of course, what surprised him the most was that some players had made the cannon?!

Is it so easy to build a cannon?

Molten iron needs to be done in the boiler to get the fuel, and it is best to figure out the influence of the annealing process and trace components on the brittle toughness; Pouring needs to solve a series of process problems such as sand mold, air eye, and grinding......

In this way, it is just barely a silhouette, whether it is good or not, whether it will blow up the chamber, and it will be melted and cast many times, and the temperature, proportion, and manufacturing process will be repeatedly tested.

And then you have to get the gunpowder......

You must know that the periodic table of the elements in this world is different, and the formula of gunpowder must be very different. Even if Su Xingyan has a superhuman luck value, Ye Han is not very optimistic.

Take the simplest black powder as an example, one sulfur, two nitrate and three charcoal, it is easy to say, even if the difficulty of processing is not considered, in the era when there is no chemistry and do not know the physical quantity, do you know how much one, two, and three are?

Obviously stole the secret recipe, because no one taught it by hand, and there are fewer things that can't make products according to the secret recipe?

Not to mention that the chemical reactions in this world are completely different, and you have to try various formulas.

Even if you know the formula or a combination of three substances, how do you choose?

Pick from the four, the odds are C43; Five picks, that is, C53; Six C63 ...... You know, the growth rate of factorials is faster than exponentials!

What's more, it doesn't have to be three, maybe two, or four, five, six, seven, eight, or nine......

Even if you happen to get it right, you have to get it right......

Therefore, even in the 21st century, compared with rigorous mathematical physics, chemistry is still a discipline with too many uncertainties, and experience is always more important than theoretical prediction, like metaphysics and even more than science.

So after realizing that the microscopic level is different, Ye Han has never thought of making any breakthroughs in the field of chemistry, even if he is a semi-professional.

The laws of mathematics are applicable to the infinite universe; The laws of physics can also be applied in a multitude of universes; Chemistry alone may not work at all if it is so fine that it changes the world.

Unless one day, he solves the unified theory of chemistry and can directly deduce the properties of elements and the laws of matter combination through the laws of the universe, physical parameters, and electromagnetism, he will not waste time.

But...... Did anyone do it?

Of course!

This is a battlefield of time, gathering elites who don't know how many fibers, and there are many talents.

Where he feels that there is no way through, others may not be able to take shortcuts; He felt that manpower was sometimes exhausted, and others might not be able to fire firewood.

For example, the problem that the accuracy of the primitive cannon is extremely poor and difficult to aim is not perfectly solved by the military skills of the catapult?

The nerve reflex was 0.03 seconds, and the signal transduction speed exceeded 300 meters per second, which made Ye Han think so much for a moment, but it did not help to resolve the crisis.

No matter how strong the carbon clothes are, they are not enough to protect against shells!

He's wearing clothes, not tank armor! Even if it is stronger than tank armor, it is only a few centimeters thick if it can't stand it. The impact of the shells simply cannot be resolved.

Just when he was at a loss, a white shadow suddenly burst out.

It's the spirit of war!

A strong force came, and Ye Han flew up.

As the clouds flew up in the fog, Ye Han looked back at the white horse, and from the head of the horse covered by carbon armor, he vaguely saw: "Finally, I don't have to wait!" ”

(?????)

The Spirit of War is a spirit horse. The spirit horse confesses the Lord.

Although he was temporarily "loaned" to Ye Han for some reason, he definitely did not hesitate to be able to ride for a while.

So on the high ground on the other side of the mountain, Lao Ma and Lao Cai were dumbfounded to see that when the cannonball was about to hit, the target was knocked out by the white horse that suddenly jumped out, and then ...... The parabola fell into a cliff.

Yes, Ye Han has been running on the edge of the cliff. The Spirit of War knocked him off the cliff with this collision, and flew far away, and began to fall smoothly!

A second later, Ye Han, who had calmed down, opened his arm and stretched out his bat wings, turning from free fall to free gliding.

Yes, in addition to diving, his carbon jumpsuit also has a glider suit function that can be opened at any time. Then the system backpack also made sense to fold the parachute.

As a fiber athlete, even if you can't bring it into the plane, you can't bring a parachute?

Thanks, Spirit of War!

Spirit of War: ( ̄(?) ￣)

As a mount, it's absolutely impossible to openly kill your master! You can't even disobey your master's orders, only in special circumstances, such as the one just now, you can choose the lesser of two evils.

It chose to crash into the air, firstly, it could give Ye Han a whole corpse, which was "lighter" than a dead corpse; Second, to relieve my anger, I have been ridden for so long, and I will come back with revenge in person, and I will be happy! Refreshing! Enjoyable!

I never expected it......

What it didn't expect was ......

"The horse, the horse didn't die?" It's still the high ground on the other side of the mountain, and Lao Ma Lao Cai's chin is attached to his chest.

The cannonball hit, properly! This is true both for skill feedback and for seeing it with your own eyes.

But it was obviously hit, and it hit the white horse's buttocks, and the big white buttocks [Note 1] swung, and the huge cannonball was actually bounced away......

(?? ω?? ‖)

It even made them doubt the power of their own cannons.

Actually, it's not surprising at all.

Horses can weigh more than a ton, more than a dozen normal adult humans, and the Spirit of War is precisely the tallest kind of horse.

Although the damage tolerance is not according to body weight, it is several times stronger than that of humans, but there is no problem at all.

It is still practiced, and its own attributes are already superb, supplemented by the blessing of internal strength...... That is, a horse, if it is a person, even if it is not at the level of Lu Bu, there must be a grade of Guan Zhang.

Of course, the most important thing is the armor, although it is not thick, but the impact is thick.

Because it was not corrected, it was hit on an inclined plane.

When we were in the second grade of elementary school, we should have known that the equivalent thickness of armor is vertical thickness/cos inclination.

As long as it is oblique enough, 1cm can be infinitely thick. Coupled with the pitiful penetrating power of the spherical cannonball[Note 2], isn't it a matter of course to be bounced off?

It can only be said that Lao Ma Lao Cai is a little worse.

I, I'm not dead?

After being hit by the cannonball, the spirit of war, who was hurting in the buttocks, opened his eyes, stared blankly at Ye Han who was free-sliding, and suddenly felt that Ma Sheng was gloomy.

So, not only did he not retaliate back, but he also saved this guy by mistake?

o(??????????)? o

It took several seconds for it barely recovered from the blow, held its body, and limped away, leaving only a melancholy back.

The old horse on the high post was stunned, and suddenly shouted: "Hurry up and leave that horse behind." Live, not die! ”

This horse, this horse is really too strong! Cannonballs can't be killed!

If you can stay, the world is so big, where can you go?