After Zhang Zian finished his speculation, the elfins felt that it was very reasonable and nodded repeatedly. After all, he was eloquent, especially when it came to fooling people.
The scientists and police detectives in the United States and Canada were not fools. Regarding the frequent incidents of broken feet on the beach, they most likely suspected that it was the work of criminal organizations, but they also suffered from no evidence.
The ocean currents were very complex. So far, people had only been able to figure out the direction of the main ocean currents, but in fact, the ocean currents were very likely to be three-dimensional — the sea was so deep that the upper ocean current went north, the middle ocean current went west, and the bottom ocean current went south. It was entirely possible.
The scientists believed that the broken leg was carried to the beach by the ocean current, but they did not know which ocean current brought it to the border between the United States and Canada. The funds and technology they had at hand did not allow them to conduct a thorough investigation. After all, this was not a shocking case.
The simplest way to track the direction of the ocean current was to place buoys with signal transmitters, then use satellites to receive the signals and record the trajectory of these buoys, thereby depicting the trajectory of the ocean current. However, this method could only track shallow ocean currents. It could not be used for the deep ocean currents hidden under the surface of the sea.
The submarine forces of the major military powers had the most understanding of deep ocean currents, but the hydrological information collected by the submarine forces would obviously not be made public to the public.
Zhang Zian turned to call out to Sihwa, who had not dared to look at the broken foot on the beach since the beginning.
"Sihwa, it's your turn. I saw whales in the sea before. Can you ask the whales if there is an ocean current flowing to the north?" he said.
The known cold current in California flowed from the north to the south. If his guess about the broken foot was correct, then there must be an undercurrent flowing from the south to the north. Otherwise, it would be impossible to bring the broken foot to the border between the United States and Canada.
Sihwa, who usually wanted to go to the sea to have fun, seemed very reluctant this time.
"I'm not going! If I swim in the water and a broken foot floats in front of me … I might be so scared that I'll have a shadow of the sea! "she muttered, pressing her hand against her chest." The United States is so scary! My little heart is thumping in fear right now! "
Zhang Zian said, "… How can there be such a coincidence? Do you think you can see broken feet everywhere in the sea? Besides, people drown or commit suicide every day. Even in the sea of Binhai City, maybe you often pass by corpses … "
"I'm not listening, I'm not listening. Tortoise Chanting Scriptures!"
Sihwa was so scared that she quickly covered her ears with her hands and shook her head like a rattle. The water droplets in her dark green hair splashed on Zhang Zian's face.
Fei Na glared at him fiercely. "Is that how you advise me?"
Zhang Zian also felt that the joke just now was a bit too much. He was open-minded, but it didn't mean that others were open-minded. It was better not to make jokes about dead people.
He corrected himself and said, "Sorry, I was just joking. It's actually not that serious. Statistically speaking, the probability of a person's feet being found on the sea is only one in a million! One in a million! It's even lower than the chances of me winning the second prize or you becoming a top internet celebrity! "
"Bah! I will definitely become a top internet celebrity. Don't look down on me! "Shihua said angrily.
"Quack! It was impossible for an ordinary person to win the Double-color Ball second prize or above! Stop dreaming, you idiot! "Richard was not afraid of breaking his leg. He leisurely combed his feathers.
Just like that, Sihwa's fear was dispelled. However, she still asked suspiciously, "Is the probability really only one in a million? You're not fooling me, are you? "
"This is the data estimated by the experts. It's definitely true. I swear on my wallet." Zhang Zian took out his wallet and solemnly placed it on his chest.
Fa Ci was speechless. Oaths were sacred. He had never seen anyone swear on their wallet before.
"Quack! There's no money in your wallet. It's fine if you try to fool others, but don't try to fool me! It's not like I haven't seen your wallet before. There's not even a penny in it! "Richard yelled.
"That's in China. After all, even beggars in China use QR codes to collect money. This is the United States, and I don't carry a penny when I go out. I'm afraid that I'll be killed by a robber!" Zhang Zian said as he opened his wallet to show them. There was indeed a stack of US dollars in it.
"Okay, then I'll reluctantly believe you this time." Sihwa finally believed him.
“？？？”
Fa Ci was confused.
He didn't understand the logic behind this. Why did swearing on his wallet work so well?
No matter what, Sihwa finally agreed to go to the whale for help.
"I can't help you for free. What are you going to give me in exchange?" She stretched out a hand, as if she was asking for something.
She was like a child in this aspect. She always had conditions when she was asked to do something.
"What do you want?" he asked back.
"I don't want anything at the moment." She tilted her head and thought about it.
"Then we'll talk about it when you've thought about it. As long as it's not out of line, I'll agree," he promised.
Sihwa was very satisfied with this answer. "Hmph, that's more like it!"
Usually, when she returned to the sea, she would be as happy as a dragon returning to the sea or a tiger returning to the forest. She would plunge into the water and not come out for a long time. But today, she was like a child who had just learned to cross the road. She strictly followed the principle of "stop, look, and pass." She cautiously observed the surrounding seawater. After confirming that there were no unknown floating objects, she gathered her courage and dived into the water. She swung her long and strong fishtail, pulling out a white line of water, and swam towards the depths of the sea.
Zhang Zian raised his binoculars. After the whale had sprayed water, it didn't spray anymore. He didn't know if it had left, but he believed that Sihwa could call it back.
As if to complete the task as soon as possible and leave the area as soon as possible, Sihwa swam very fast. Soon, even the line of water could not be seen.
Zhang Zian held the binoculars and slowly rotated his body, searching for traces of the whale on the surface of the sea.
A few minutes later, Richard used its wings to pat his head. "Ga ga! There's a spray of milk over there! "
"Where, where?"
Zhang Zian perked up and quickly moved the binoculars. But he immediately came back to his senses and waved his hand to slap it. "If it's spraying water, just say it's spraying water. Don't always use such words that can easily cause misunderstandings!"
Richard had already predicted his reaction. It flew into the air in advance, dodging his slap, and proudly called out, "Ga ga! You said no, but your body still responded very honestly! "
Zhang Zian was so angry that he could only stare at it. But it was flying in the air. He had just leaned his hiking stick against the reef, and he didn't have a weapon that he could use to slap it. He had to let it go for now and go look at the whale that was spraying … water.
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