The pH of a solution indicates the concentration of free H+ ions in solution on a negative log base 10 scale. Low pH (acidic) means high H+ concentration High pH (basic) means low H+ concentration.
Mistakes. 1  In the manga, Ravenpaw is shown with a slightly altered appearance from his description in the books. 2  He has been mistakenly called Ravepaw. 3  He was mistakenly mentioned with blue eyes.  He is mistakenly called a rogue by Sandstorm in A Clan in 1  Need. He is mistakenly called 'Ravenclaw' by Vicky.
The Three-Eyed Raven tells Bran that he now must become the Three-Eyed Raven himself, even if he isn't ready. We've seen that Bran can affect the past, as his manipulation of Hodor's mind to defend himself from the White Walkers leads to Hodor's mental problems and eventual death.