Although the human eye is sensitive to yellow and green, it has become a tradition to use red as a signal for caution. A ship carrying explosives would have a red flag flying to signal to other ships not to come very close. Experts believe that since the deep red colour of blood could shock people into alertness, such a shade was most suitable as a signal for caution. Red also has the longest wavelength and it was thus believed the colour would promptly draw attention even from a distance.
Check Also
Mission: Impossible – The Final Reckoning: 2025 Tom Cruise Action Thriller Film
Movie Name: Mission: Impossible – The Final Reckoning Directed by: Christopher McQuarrie Starring: Tom Cruise, Hayley …