Which of the following statements about Abbas Ibn Firnas is/are INCORRECT? (I) He was an engineer and was considered as the Leonardo Da Vinci of the Islamic world. (II) He attempted to fly with his invention, rudimentary glider, and remained in the air successfully. (III) He was a poet, a musician and astronomer, too. (IV) He realized that he forgot to include a beak in his invention to slow the descent of flight

Which of the following statements about Abbas Ibn Firnas is/are INCORRECT? (I) He was an engineer and was considered as the Leonardo Da Vinci of the Islamic world. (II) He attempted to fly with his invention, rudimentary glider, and remained in the air successfully. (III) He was a poet, a musician and astronomer, too. (IV) He realized that he forgot to include a beak in his invention to slow the descent of flight