Aether

Around 20 or so iterations later, Ning stopped once more. He was getting a little frustrated at this point. On one hand, doing the same thing over and over was very vexing and he was about 3 more iterations away from tearing this hair out because of the monotonousness of the task at hand. 

On the other hand, even after 20 iterations, his Kinetic energy had only barely increased by less than 2 Billion energy, which was a far cry from the over 4 Billion energy he had got from Heat energy.

"Urghhh, I need to find another way. This is going to take too long," Ning complained, but there was no other way. He had to stick to it.

"Sigh, let me refresh my mind," he thought and sat down on the cold snow to clear his mind. He started to cultivate. Of course, there was no Qi there for him to cultivate his inner Qi, but there was Aether, and he was going to try cultivating that, however, that worked.