1) The eye of a cyclone is a region of calm, relatively clear skies and light winds at the center of the storm.

2) The first sound film, "The Jazz Singer," was released in 1927 and marked the transition from silent movies to "talkies."

3) The impact of social media platforms on society and politics has been a subject of debate, including concerns about misinformation, privacy, online harassment, and the influence of these platforms on public opinion and democratic processes.

4) The world's largest desert is the Antarctic Desert, covering around 5.5 million square miles.