@morhafalali 9 December 2022

good morning my friends. Happy weekend, enjoy yourself in reading some physics books by the fireplace in this cold weather. I just read about a plane that breaks the sound barrier by American photographer Joe Broyles! It took him five years to take the picture, because taking such a picture might be impossible, because the conical shape resulting from the steam lasts only about ten seconds, due to the plane's speed reaching the speed of sound, i.e. 1232 km / h! I found this information a passion for reading, enjoy a happy holiday my friends