Bulma was undoubtedly a genius, a top-tier scientist just like Dr. Gero, though their fields of expertise differed.
After inspection and repairs, Bulma announced that the Gravity Chamber was basically functional. However, due to the aging of certain components, new parts would need to be purchased to prevent any mishaps during use. Furthermore, there was the crucial issue of energy.
"I've modified the Gravity Chamber's energy storage. Now, it requires an Energy Crystal found deep within volcanoes. Gohan and Ling An-chan, I'm counting on you to get the parts and the energy," Bulma said, approaching Gohan and Ling An, her hands still smudged with oil.
"However, the remaining energy in the Gravity Chamber can still run for about three hours. Gohan, you can try it out first. If it really works, then it won't be too late to buy the parts and energy."
Ultimately, Bulma didn't quite believe that the Gravity Chamber could significantly boost Gohan and the others' strength, as Ling An had claimed. After all, there was Vegeta's example. Therefore, after overhauling the Gravity Chamber, she also decided to utilize the remaining energy.
Hearing this, Gohan glanced at Ling An. With a nod of confirmation from her, and accompanied by a similarly doubtful Trunks, he headed towards the Gravity Chamber.
"Is it really useful, Ling An-chan?"
Bulma stood with her hands on her hips, looking at Ling An. Facing Bulma like this, Ling An smiled gently and said, "Aunt Bulma, although Vegeta didn't gain the power to defeat the Androids through the Gravity Chamber, didn't he get stronger because of it? Saiyans and Earthlings are ultimately different. They can gain more from this kind of weight training than Earthlings can."
"So, Aunt Bulma, you can relax. Have faith in Gohan and the others!"
"Since you say so, then I also hope Gohan and Trunks can become stronger."
"By the way, Aunt Bulma, I heard you've been researching the Time Machine recently? How's your research going?" Ling An was quite concerned about the Time Machine. After all, the Kami of this world was gone, which meant the Dragon Balls couldn't be used. If she had a Time Machine, she could go back in time to use the Dragon Balls and obtain the location of New Namek. Then, she could use the Namekian Dragon Balls to revive the Kami of Earth, or invite a new Namekian to come to Earth and remake the Dragon Balls.
That way, the Earth, which had been destroyed by the Androids, could be restored. And with the Dragon Balls, she could also wish for Gohan's arm to be restored, or perhaps she herself wanted to use Shenron to gain the ability to move freely in the universe. She might encounter scenarios where she needed to fight in space in the future, but even if she didn't, if she had this ability, she could easily leave this planet if it became uninhabitable and she didn't have a spaceship.
Just like the Androids' rampage now, if she didn't lack a spaceship and couldn't survive in space, Ling An would have run away long ago. She possessed the Critical Hit System; she only needed to find a remote planet to hide on, and after a few years, she could return to Earth and eliminate the Androids.
So, having this ability was pretty good.
"The progress isn't very smooth. There are many problems that still need to be resolved, and most importantly, there's a lack of many key materials. Without these things for actual testing, I can only rely on constantly deriving calculations." Speaking of the Time Machine, Bulma became excited. This was something she had been researching for years, with the goal of using the Time Machine to go back in time and save Goku, who had died from heart disease. She also hoped to change the present world by changing the past.
But as Bulma said, researching the Time Machine was extremely difficult. It might take quite some time before she could truly succeed.
Ling An was helpless about the situation. After all, in her previous life, she had only watched the original story. She only knew what the Time Machine looked like and that even if she had it, it could only change another timeline, not affect the established facts of this worldline. She knew nothing else. The principles? Probably only Bulma knew.
However, while she couldn't help with the Time Machine research, she could assist in other areas: "Aunt Bulma, Gohan and I are going to collect energy for the Gravity Chamber. You can write down what you need for the Time Machine too, and we can buy them together."
"Oh, right! How could I not have thought of that? In that case, I'll leave it to you!" Bulma tapped her head, a look of realization on her face. She had been struggling with the lack of components for the Time Machine. The threat of the Androids had also prevented her from searching everywhere. She could only rely on herself or have Trunks look for usable items nearby. Now that Gohan and the others were going out, she could ask them to purchase the items.
"Ling An-chan, thank you for reminding me. I'll go prepare right away!" With that, she hurried into the house. Seeing this, Ling An smiled slightly. Looking at the red light coming from the window not far away, she suddenly felt a sense of joy in changing the plot.
If she hadn't appeared, Gohan would have died under the Androids' attacks. Trunks, even after becoming a Super Saiyan, would still be unable to defeat the Androids, barely surviving for years. Eventually, he would return to the past with Bulma's Time Machine and gain the power to destroy the Androids. But now, with her intervention, Gohan had survived, and if nothing went wrong, he would soon gain the power to defeat the Androids. Bulma might also speed up her research on the Time Machine.
Everything was developing in a positive direction.
Ling An lay on the recliner, looking at the sun in the sky, a satisfied smile on her face.
"Gohan-gege, is the Gravity Chamber really useful?"
After entering the Gravity Chamber, Trunks looked at Gohan with some doubt. Under his gaze, Gohan gently shook his head, "I'm not sure either, but I don't think Ling An would speak without reason. I vaguely remember that when Frieza attacked, Dad did gravity training on the spaceship while traveling to Namek. Also, Trunks, your father, Vegeta, also trained in this Gravity Chamber before, so it should be useful."
"My father trained here too?"
Looking at every corner of the Gravity Chamber, Trunks's tender face was slightly dazed. After a while, he clenched his fists tightly: "Then I will also become strong! I will help my father defeat the Androids that he couldn't!"
"Trunks, believe in yourself, you definitely can. I believe Uncle Vegeta will also be pleased that you have this thought." Gohan patted Trunks on the shoulder, then went to the control panel and began to adjust the weight according to Bulma's instructions. At the same time, he also thought of what Ling An had told him earlier.
Ling An had told Gohan that he must use his own power to face higher multiples of gravity, rather than transforming into a Super Saiyan. After all, once he became a Super Saiyan, the current Gravity Chamber would be hard to utilize, therefore, it would be useless. Only by relying on his original strength to endure, could he release the power within his body.
"Trunks, are you ready? I will activate the Gravity Chamber. You must not transform into a Super Saiyan. You must slowly adapt to the gravity applied to your body. Only then can you become stronger, understand?"
"I understand, Gohan-gege, please start!"
Trunks nodded resolutely. As Gohan activated the Gravity Chamber's gravity device, both of them felt a slight pressure on their bodies. However, they exchanged glances and understood that this pressure was still within acceptable limits. Thus, they increased the gravity!
With the gravity increasing, one time after another, it wasn't long before both of them felt their bodies become incredibly heavy, making even walking difficult. If an ordinary person were inside, they would be instantly crushed into a meat patty. But for the two of them, it was only heavy enough to make walking hard.
"Alright, let's begin. We'll start with this level of gravity. Trunks, start with the most basic training!"
"Yes!"
Under the intense gravity, Gohan and Trunks began their training in the Gravity Chamber. They didn't engage in combat. They couldn't possibly fight without fully adapting. Everything was basic training, like punching, running, squat jumps, and sit-ups. With their strength, and the Saiyan physique, they quickly adapted to this level of gravity. Then, Gohan gritted his teeth and continued to increase it!
Terrifying gravity constantly pressed down on them, but they overcame it again and again. When half of the resources of the Gravity Chamber were used, Gohan didn't increase it anymore. He knew that if he went any higher, Trunks might not be able to hold on. And the current gravity was also a considerable burden for him. Under these circumstances, they started their combat training!
Their fists and legs went from slow at the beginning to fast later on. Facing Trunks's punches, one after another, Gohan was already certain that maybe, gravity training could really make the two of them stronger in a short amount of time.
He would have enough power to crush an Android. And Trunks, well, he might not be able to completely fight the Androids, but with stronger strength, he could hold them off longer. Then, he would have the opportunity to kill an Android. Attack them separately, and the Androids would be completely dealt with.
At this moment, he suddenly thought of the smiling Ling An, and how everything seemed to be improving since she appeared. All of this was something he, in the past, wouldn't have dared to imagine.
"Thank you, Ling An..."