Sign in with Facebook
Cool thing about pendulums: The time it takes for one to swing forward and backward—the period—won’t change, no matter how wide it swings. If it’s got a lot of energy, it’ll swing farther and faster, but the period will still be the same.
...more
Collin’s 2025 Year in Books
Take a look at Collin’s Year in Books, including some fun facts about their reading.
582 books
|
6 friends
351 books
|
9 friends
169 books
|
40 friends
89 books
|
6 friends
9 books
|
10 friends
213 books
|
23 friends
206 books
|
25 friends
1,478 books
|
395 friends
More friends…
Favorite Genres
Polls voted on by Collin
Lists liked by Collin
