Rice University
Rice University: Galileo's Pendulum Experiments
This site from The Galileo Project of the Rice University provides a great look into the pendulum experimens of Galileo. Contains first-hand writings and examples of experiments along with links to additional information.
Sophia Learning
Sophia: Divided Quotation Punctuation
Notes demonstrating how to correctly write and punctuate a divided quotation. Notes can be read and/or listened to and examples are provided.
Grammarly
Grammarly Blog: Other Uses of Colon
Rules and examples for using colons when writing time, chapter and verse, dialogue, and business letters.