Studied chemistry and it is amazing to see how reaction works. What I find even more amazing is how we can manipulate the chemical properties just by taking away the bonds and ions.
What intrigues me is how we can use magnets to repel each other and this technology was use in the super train rails in some countries. The repel keeps the object spinning and forces free movement forward reducing electricity.
Also with the fuel technology, the reason behind the slow process to build fuel efficiency cars is the car and oil companies who dictates the flow and the cost. We have the tech to do it, but unfortunately we corruption and greed million-billionaires.