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.
There are a lot of theories surrounding the identity of the Three-Eyed Raven, and the character's final words to Bran (It's time for you to become me) have only fueled some of these. It has been suggested that Bran will go back in time and train up the Raven, who will in turn train up Bran in a continual time-loop.