1) The word "bank" comes from the Italian word "banco," which means bench. In medieval Italy, bankers conducted their business on benches in the marketplace.

2) The concept of virtual reality (VR) involves creating a simulated environment that can be explored and interacted with using specialized headsets and input devices.

3) The word "cheese" contains three vowels: E, E, and E.

4) The Hubble Space Telescope, launched in 1990, has provided breathtaking images of distant galaxies and deep space.