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Chapter 275 The Leidenfrost Effect

Ye Han moved very quickly, but the magma spewed out even faster.

As soon as he untied two pieces of the Seven-Tian-Wang Seven Shrink Buttons, the surging magma overflowed the fingers of Tianlao Buddha Palm, and came to his feet with steaming heat...

When he managed to untie the third section, half of his body was soaked in magma, like a toilet man.

In less than a second, he was completely submerged in the magma, and he didn't even have a chance to put his hand on the surface of the liquid to pose like a Terminator.

At this time, the magma is surging, the ground fire is roaring, dust and smoke are filling the air, and the heat wave is overwhelming...

Originally, the situation in the magma pool was normally invisible. But who made more people present abnormal?

Cheap Sun Tzu has a high-performance telescope that can detect heat sources and filter dust and fog;

Gan Dadi has eyesight blessed by internal strength and can track flies and mosquitoes from a hundred meters away;

Not to mention the few people in the sky, they are wizard GMs, and nothing in the examination room can be hidden from them.

Everyone thought that Ye Han was done playing and would definitely die, even those who knew the power of carbon clothing.

Even if the carbon clothing can be insulated laterally, with air with good insulation performance and an internal circulation liquid cooling system sandwiched between it, how long can it withstand magma with a temperature of at least a thousand or several hundred degrees?

Can you block it for one second and two seconds, can you block it for ten and twenty seconds?

It's simply impossible!

Take modern fire-proof and insulating clothing, for example. The clothing itself can easily withstand temperatures of 1,000°C, but in high-temperature areas near the fire, due to the conduction of heat radiation, the internal temperature can exceed 100 degrees in a few minutes, steaming people to death.

What's more, what Ye Han was in contact with was not air with good insulation effect, but liquid magma! The specific heat was at least hundreds of times greater, and the conduction efficiency was also dozens of times stronger...

Although modern fireproof and insulated clothing can last for several minutes in a fire scene, it can be choked under lava for a few seconds. If nothing else, whether the fabric itself can withstand high temperatures is a matter of two opinions.

Although carbon suits are heat-resistant, their lifespan is measured in seconds even at temperatures of a thousand or hundreds of degrees.

Even at this time, the worse the insulation effect, the better.

Because if it's bad, it will be "pop" burnt, just like roasting ants with a magnifying glass, and the pain will only last a few seconds; if it's good, it may be "pop...ahhhh...ji", which is very inhumane and cooked.

Everyone lets their imagination run wild.

Gan Dadi: Boy, I admire your courage!

Cheap Sun Tzu: Professor Ye, don’t, I’m still hugging you while pointing to this game!

A certain system: Is this all right? You’re being cruel...

Just when everyone had sentenced Ye Han to death, they just didn't know if he would die of suffocation or smoldering, or if he would be roasted with a charred exterior and tender interior, or if he would jump over the wall with lava seeping through... Suddenly a figure emerged from

Jumping out of the magma.

It's Ye Han!

He's not dead?!

ヽ(?д?|||)?

(╬ò?ó)

!?【?〇?;】!?

For a moment, the expressions of everyone present were very wonderful.

Of course not dead!

If scientists are not sure, how can they easily put themselves in danger?

The density of magma is very high, 2.5×10^3 kg/cubic meter, 2.5 times that of water, and also about 2.5 times that of the human body.

Therefore, if it is not burned and scorched, it will not sink into the magma, but will always float on the magma. Even if it has two legs in the magma and the entire upper body is exposed, there will be no problem.

Therefore, the scientists used some tricks in order to catch the Seven Locks of the Seven Heavens. They reversed the light skill and changed it to a thousand catty drop. Together with the dragging of the rope, they successfully dived under the magma.

At this moment, he stopped reversing, and was directly pushed out of the slurry surface by the buoyancy force. He then jumped out of the slurry pool and climbed up the side rock wall.

I saw that his whole body was steaming with heat, and there was white steam all over his body. The fiery red magma dripped from the surface of his clothes, not even a trace of it, like a non-stick pan, and like a hydrophobic umbrella, the water droplets could be easily shaken off.

Behind him trailed five long seven-pin buttons that wrapped around the sky, like a five-tailed demon fox. The magma droplets continued to scatter after being shaken, and white smoke curled up where they fell, making a sound, like a special effect in a game.

Now that he was out, it was done. Ye Han used his hands and feet without stopping, and quickly climbed to the top of the cliff like Spider-Man.

No, faster than Spider-Man.

The strength of characters in Marvel movies is very confusing. They are high and low, up and down. There is never a standard that can be scrutinized.

For example, Spider-Man can stop a speeding train with all his strength.

What level of power does a train and locomotive have? At least several thousand horsepower! It's still running at full speed, with huge inertia... Even the power of the ten elephants has to kneel in front of this.

He has this level of strength and his body can withstand this level of pulling. Does he still need to hang on a rope to shuttle between high-rise buildings?

The Hulk can jump hundreds of kilometers at a time, and it is the most basic thing to not be hurt at all by a rocket! If you fall to the ground from a height of dozens of meters, you will never be unable to get up for a long time. You can still fight someone who stopped a train.

Do you care about the impact?

For example, Ye Han now has a strength of 151 and a maximum load capacity of about 8 tons. He has the strength of almost half an elephant, which is enough to jump six to seven feet and more than twenty meters, and he still jumps on the spot!

Even if he doesn't use his legs and arms, he can easily jump three to five meters; as long as there is a crack in the stone, or even a small hole for him to insert his fingers, he can easily hang on and continue leaping.

No need for any spider silk at all!

It’s not like what’s shown in the movie, where you’ll be exhausted just by climbing the Washington Monument.

With 8 tons of strength, just pulling his body of less than 100 kilograms up a cliff is like a person with 100 kilograms of strength pulling... a 1.25 kilogram weight up a cliff of the same height.

Should it be tiring? Can it be tiring? It’s just ridiculous.

In short, jumping and jumping is like walking on flat ground.

Even if some rocks were weathered and crispy, and he grabbed them into pieces, his nerve reflex as high as 172 would be enough for him to grab them a few more times until he had a firm grip.

Even if you still can't hold it firmly, there is still lightness that can reverse gravity! There are also seven buckles of Maotian! There are also hooks!

All in all, no danger at all.

In just a few dozen seconds, Ye Han climbed more than a hundred meters and reached a place higher than the person he shot out. Then he jumped from the cliff and spread his wings. His body was rapidly losing internal energy and he could barely turn around a few more times.

Counteract gravity and reduce weight...

Then they crossed the valley, which was a hundred meters wide, crossed the tumbling and gushing magma pool below, and came to the other side of the valley to join everyone.

"Professor Ye, how did you do it?"

Watching Ye Han steadily retract his wings and land on the ground. Not only is he not dead, but his oily skin is not broken at all. When he takes off his hood, his skin is not red at all! He can still vaguely feel the cool breath, without the feeling of boiling magma. Even the material of his clothes is dry.

Straight and not wrinkled at all...

The cheap grandson was stunned and asked impatiently.

Gan Dadi said nothing, his body was hunched like a shrimp, well, a shrimp in reverse. He maintained this posture and bounced hard in the direction of Ye Han a few times. Obviously he also wanted to know the answer.

He is a master who has the strength to compete among the top three in the world, and few people know the limits of martial arts masters better than him.

Internal force can create low temperatures or high temperatures, but at most it can turn into ice from frozen water at tens of degrees below zero, or it can reach a temperature of hundreds of degrees that can ignite paper and wood, such as the wood-burning knife method.

And most of them rely on the stupid method of generating heat through friction.

This does not require internal force. Anyone with a wooden bow and a drill can do it. It is not a concept at all compared to the thousand or hundreds of degrees of magma that is enough to turn iron into water.

Although Gan Dadi doesn't know much about scientific principles, he can roughly estimate the gap based on the instinct of an expert.

So his curiosity is no less than that of his cheap grandson.

Including a certain system in the cloud, their furry ears stood up, extremely curious about Ye Han's answer!

Of course it knew that Ye Han was alive, and it could clearly see the whole process without any injuries, including the fragments under the magma... But it didn't know why he was alive and well, and his skin was not even burned.

.

The five claws scratched his heart and made him feel so uncomfortable that he wished he could get into Ye Han's mind.

"He's cheating, right? Has he found a loophole in the game?" A person on the chessboard picked up a piece and muttered.

"Cheating!" the system replied angrily, waving his claws suddenly before the other party scolded him back, "Stop talking, it's coming!"

It saw Ye Han pushing his eyes, and he was about to start performing.

The answer is actually very simple. "Leidenfrost effect?"

"What effect does it have..." Except for the cheap grandson who could barely understand, everyone else looked confused and thought Ye Han had recited a spell.

Certainly not a spell.

The Leidenfrost effect is when water drops onto a hot pot. If the pot is not hot enough, the water will evaporate quickly; if the pot is hot enough, the surface of the water droplets will boil quickly to form a steam layer, which will isolate the water droplets from the hot pot.

The phenomenon of greatly slowing down the evaporation rate.

Those who sell non-stick Zhangqiu iron pans and perform fried eggs without sticking at all are taking advantage of this effect.

As long as the temperature is high enough, you won't touch any pot; if the temperature is not high enough, you will have to kneel down on any pot.

This is also called film boiling, and the critical temperature is also called the Leidenfros point.

For example, the Leidenfros point of water is approximately 193°C.

Below this point, the water will evaporate quickly because suspension cannot be formed. But at this point, the heat transfer isolation caused by film boiling is very considerable.

Some scientists have measured that water that originally evaporated immediately at 168°C took 152 seconds to completely evaporate at 202°C due to the formation of a steam layer...

The liquid nitrogen challenge that has been popular on the Internet has the same principle, except that the high temperature of the human body boils the protective film produced by the liquid nitrogen.

Or there is a video of the performer inserting his hands into molten steel. The performer must have washed his hands carefully before inserting the molten steel. When the water comes into contact with the melted molten steel, a steam protective layer is instantly formed, so the hands are safe.

Ye Han took advantage of this.

Before entering the lava, wet your body with water.

Not only that, the carbon suit designed to be inflatable and life-saving is also a prop that conforms to the "sealed container" setting of the Wudang clean bottle. So in addition to water on his body, there is also water inside his clothes.

Even if the temperature of the magma is too high, the water on the surface will not last for a few seconds, and there will be a second layer, a third layer... and up to the Nth layer.

In short, it is not a problem to hold on for tens of seconds or even minutes.

Even after leaving the magma pool and the place where the heat was boiling, he was still a little, no, quite uncomfortable.

It's too cold outside...it's not as comfortable as being in a magma pool.

"Sneeze!" He sneezed hard.


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