![](https://play-lh.googleusercontent.com/a/ACg8ocK2Tl-rl6gFvay-RD_IN_UywbDm7E2cWQxQTMW4EW7QNe91mA=s32-mo)
Armand Martí Alsina
I have read 4 physics books: History of time, the elegant universe, black holes and curved time and hyperspace. I have also seen more than 300 physics videos, even so with this app I have continued to learn. And the most important thing is that I have managed to learn all my doubts about quantum physics. And now when I read a book I can understand it much better