C59 Forward or Back (1/2)

”So we spent 15 minutes on a single trip yesterday … When I first came in, it only took me 10 minutes. Now, it only needs less than 9 minutes? ” I swallowed.

Sayaka nodded.

Junior physics tells us that distance = time × speed.

There are only two possibilities for shortening time: our speed is getting faster, or the distance of the road is shortening.

But the road couldn't possibly be shorter. Yesterday, when they came here for sightseeing, the guide had told them that this cave had been like this for hundreds of millions of years. Until now, it hadn't changed at all.

Did our speed increase?

”It could also be that the cave is getting smaller.” Darwin said.

”How …” How is that possible? ”

”We've all learned the theory of the universe explosion. The Big Bang is caused by the expansion of the universe — assuming that the universe continues to expand, then everything in the world, including us, will also grow in proportion, but because there is no reference material, we will not be aware of ourselves growing in size. ”

”But if there is a reference object around us that does not expand, we will find that the previous laws of physics are not working.”

”... You don't mean to say that this cave is our reference? ” I was sweating.

If we are constantly expanding and only this cave remains unchanged, then it is actually shrinking for us.

As we walk through a relatively small cave, the road becomes shorter and shorter for us.

The cave itself did not change, but we were getting bigger.

I wrapped up the clothes on my body and leaned on Sayaka. ”Then what should we do now?”

”The first thing we should do now,” Darwin suddenly said to us seriously.

”I'm mocking your intelligence quotient...”

”— The distance between close friends and galaxies affected by the expansion of the universe. I was just joking with you guys to believe it.”

”...”

”... Should go to Sting. ”

Sayaka and I were both petrified.

As long as you are happy.

We'll just quietly watch and see how you act.

And so, just like that …

He watched silently.

He finally knew why Darwin didn't have any friends left.

In this case, the person who entered the extreme posturing mode,

I should go back to Mars.

”Hey, you guys come over here and take a look. Is the Lost Sea in the high tide?” DickPound didn't listen to us, but continued to squat on the pier.

DickPound, do you have any general knowledge of geography? The tides are formed by the gravitational force of the moon, ”I rolled my eyes,” Isn't the Sea of Lost? It's an underground freshwater lake, so even if there was a tide, it would be impossible to observe it with the naked eye.

”I'm not lying to you. It's really getting hot. I was standing by the shore and didn't move at all. Just your conversation alone hasn't reached my back in the past few minutes.” DickPound pointed at his feet innocently.

Lost Sea was indeed surging.

We didn't notice it before because there was no reference in the ground.

Floating quays and sightseeing boats made of foam plates would rise according to the sea, and the cave itself was dark, so it was hard to see how the water level changed.

”15 minus 9 is 6, which means that the tide has flooded the road for six minutes, so the M could go on for another six minutes.” Dick snapped his fingers. ”But where can she go?”

I lifted the searchlight. Deep in the Lost Sea, there were many natural caves.

”Get on the boat!” Darwin was the first to jump onto the boat and start the engine.

The ship was moving at a tortoise's pace across the dark sea.

I didn't feel anything when I was sightseeing, and at this rate I can't wait to get down and walk.

”General, can we drive faster?” Dick rolled his eyes at the turtle hair boat.

”It's at full speed now. The waves from the high tide have increased the resistance. After all, this is an energy-saving motor, not a speedboat.” Darwin said helplessly.

”Look …” Sayaka turned on the flashlight and shone it into the water.

Yesterday, when we were sightseeing, there were a lot of rainbow trout swimming around us, but now there weren't any.

”Sayaka! What are you doing! ” I saw Sayaka stick half her body out of the boat and reach into the water.

She frowned at me.

I pulled up my sleeves and put my hand in the water --

The water temperature had changed.

Yesterday, when we came here, Sayaka and I wanted to play so we secretly reached our hands into the water to feel the rainbow trout that floated up.

The water was freezing cold.

The guide also explained to us that the water temperature here is always about five degrees Celsius — the temperature of the Lost Sea is almost constant because the ground water cannot absorb the heat directly from the surface because it is blocked by a thick layer of ground.

But today, when he touched it again, there was a hint of warmth.