Answer: Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum. The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear. These bones are called the malleus, incus, and stapes.
Explanation:
Continuing our “Ten Simple Rules” series [1–5], we consider here what it takes to make a good oral presentation. While the rules apply broadly across disciplines, they are certainly important from the perspective of this readership. Clear and logical delivery of your ideas and scientific results is an important component of a successful scientific career. Presentations encourage broader dissemination of your work and highlight work that may not receive attention in written form.
Answer:
Lester William Polsfuss
Explanation:
Lester William Polsfuss, born in 1915 in America better known to others as Les Paul, invented the solid-body electric guitar in 1941. Gibson Guitar company launched Les Paul Guitar in 1952. The guitars by Les Paul are known for their sound, some call it as legendary. Some of the best guitarists in the world still play them. The guitar is considered to be good, still collected by many but is known to be expensive.
