Yang Xu's phrase 'Bernoulli's Law'.
It left Yiying and the audience in the live broadcast room extremely puzzled.
The 'Sailing Jellyfish' in those pictures.
The diameter is about five to fifteen centimeters.
The transparent 'sail' that stands on the body is like crystal.
A sea breeze passed.
Or a wave of waves hits.
Will let them float for a long distance.
They do not swim like normal jellyfish, they can only migrate and move by virtue of wind and waves.
The "Sail Jellyfish" on the sea is like a fleet of miniature creatures~
"Brother Xu, you are a bit too much. How come the body structure of this jellyfish is related to the laws of science?"
Yiying scratched her head and asked.
Her remarks can be regarded as expressing the aspirations of the audience in the live broadcast room.
[Sister Ying is right, these cute little jellyfish, do they still understand science? ]
[It's really too much. Brother Xu went in and out of my knowledge blind zone, which made me feel so ignorant~QAQ~][Take a small book, ready to record today's little knowledge points √]
at the same time.
Yang Xu did not directly answer the question about Bernoulli's law.
Instead, he walked to the water deck, intending to 'say hello' to those sail jellyfish.
Little silly dog Aoao followed closely, and seemed to want to go to play on the uninhabited island.
"I'm going to take a closer look at those sail jellyfish." Yiying said with great interest.
After all, it was the first time she and the 22 viewers in the live broadcast room saw this thing.
But fresh and rare~
Wow~
The night breeze was blowing gently.
After leaving the cold Alaska.
The temperature of the sea is rising.
Even the wind is mixed with warm breath.
Compared to the cold wind like a knife.
The warm sea breeze makes people more comfortable.
Follow the Yunfan ship all the way south.
Yang Xu and Yiying will cross the 'International Date Line' again.
When going to the Bering Sea.
They 'crossed' from today back to yesterday.
In the following voyage, except for crossing from today to tomorrow.
They will also enter spring and summer from autumn and winter.
This is not just a sea voyage from north to south.
At the same time, it is also a strange journey through the seasons~
"Don't these little jellyfish swim by themselves? They all rely on the waves?" Yiying and Yang Xu got off the yacht.
The night on the uninhabited island is exceptionally quiet.
Yang Xu zoomed the camera closer and took a clearer picture of the small sail raised by the sail jellyfish.
"They don't rely entirely on the waves, but also on the sea breeze. Do you think these'sails' are ornaments?"
The audience in the live broadcast room talked a lot:
[I understand, these "sail jellyfish" use their bodies to set up small sails ~ drifting on the wind and waves to prey on the sea. ]
[Really. The world is home, where do the waves go, where do I go~][I just searched for Niang Du, Bernoulli's law is a fluid dynamics equation! For example, the scientific formula for the potential energy and kinetic energy of air flow and water flow! ]
[So they have a special 'scientific way of navigation'? It's so interesting! ]
Yang Xu squatted down.
Picked up a small sail jellyfish.
He went on to say:
"They also have floating sacs like mikoma jellyfish, which are made of hard chitin, but the ones we encountered are larger than ordinary sail jellyfish."
Yiying squatted beside Yang Xu with his cheeks supported.
"Is the venom gland in the transparent body? But it's not very lethal. It can't penetrate the skin of the human body, right?"
She added: "In this way, these sail jellyfish are somewhat similar to mikoma jellyfish."
Yang Xu nodded and said: "They have a radial pipe network in their'belly', which will catch some plankton and algae."
Admittedly.
Sail jellyfish is the most peculiar.
Just above the blue-purple pontoon, an almost transparent triangular "windsurfing board" was erected.
This body structure.
Help them to travel across the ocean driven by the sea breeze and waves.
Yang Xu then used the lens.
I gave the little sails of the sail jellyfish, and a close-up came.
He went on to say: "The "windsurfing boards" on these little jellyfish are inclined at 45 angles to the plane of the body. Anyone who has played sailing should know that this is a very subtle angle."
The 'sail' of a sail jellyfish is not upright.
It is very similar to the inclination formed by a sailor who grasps a sail.
"If according to Bernoulli's law, a human sailboat can travel at its maximum speed at this angle under limited wind conditions!"
Yiying was stunned.
The audience even sighed the miraculous evolution of nature's creations!
"In the process of natural evolution, they have mastered the dynamics researched by scientists! So those'small sails' are efficient physiological structures for sea navigation!"
Yiying added incredible:
"The evolution of these little marine creatures is really amazing!"
After Yang Xu's explanation.
The audience in the live broadcast room gave initiation:
[It turns out that this is why Xu Ge mentioned "Bernoulli's Law" before~ These sail jellyfish are so amazing. ]
[That's not it. Relying on the body structure of fluid dynamics, everyone is a small navigator at sea! ]
[Sail jellyfish inner OS: no one understands wind and waves better than me~]
"Then can they adjust their direction at any time? Isn't that very passive?"
Yiying tilted her neck, observing the small sail jellyfish.
Their structure is very complex, but also very simple.
There is no ability to actively swim.
They can only truly follow the trend~
Yang Xu shrugged and said, "If it is really washed to the shore, it will only be stranded and become food for other animals."
Nature is like that.
Ecological cycle is like a doll, I eat you, it eats me…
As Yang Xu said.
As the waves hit the rocks.
Many 'sail jellyfish' drifted with the current and washed ashore.
Aoao claws stranded the sail jellyfish.
Pulled back into the sea one by one.
But with the next wave of waves hitting.
Those sail jellyfish will run aground again.
But I was so anxious that I yelled and went straight and circled.
Yang Xu and Yiying looked at each other…
I didn't expect this dog to be quite caring~
Yang Xu patted the wailing dog's head and said:
"Don't waste your time, your little wolf dog can't save thousands of sail jellyfish."
Although many cute sail jellyfish.
Stranded on the uninhabited island in the wind and waves.
It made Yiying a little surprised, but she let it go.
She 557 said to the audience in the live broadcast room: "These little marine life has mastered the scientific body structure in the wonderful process of evolution, but the cycle of the ecological circle, like the'whale fall', is a part of the ocean. ."
and.
It is still an indispensable part.
The night is getting darker.
The sail jellyfish on the uninhabited reef is also an accidental encounter between Yang Xu and Yiying.
More sail jellyfish, after the wind direction changed.
Raised their 'small sail'.
Continue to cross the ocean~
"Can we raise some of these'sail jellyfish'? Don't we have an aquarium?"
Yiying was talking.
He picked up the little silly dog who was trying to get into the water and died.
Yang Xu shook his head, and did not speak.
Although these sail jellyfish are very special and cute.
But with Yang Xu's character.
If you want to raise your own aquarium, you can raise more special things!
Immediately afterwards.
Yang Xu narrowed his eyes slightly.
It seems to have found something in the shallow sea area.
He threw the sea fishing rod in his hand to Yiying.
Walked alone towards the shallow sea area.
"Do you want to fish anymore? I'm going back to the yacht to cook."
Yiying rubbed her belly.
It is a bit hungry.
Yang Xu didn't know how to say, "I found a good thing to add to the meal!"
"What good stuff? Is it delicious?" Yiying asked curiously.
The audience was also very puzzled.
Brother Xu discovered something again?