1) The intensity of cyclones is often measured using the Saffir-Simpson Hurricane Wind Scale, which categorizes them based on their sustained wind speeds.

2) The Great Wall of China is not visible from space without aid, contrary to popular belief.

3) Meryl Streep is an American actress widely regarded as one of the greatest performers in the history of cinema. She has received a record number of Academy Award nominations and has won several awards for her roles in films such as "The Devil Wears Prada" and "Sophie's Choice."

4) The process of impeachment involves charging a public official, such as a president or high-ranking government official, with misconduct and potentially removing them from office through a trial and vote by the legislature.