Answer:
they needed a sword that was both hard and flexible but would not bend or break
Explanation:
Japanese smiths solved this problem by making the core of the sword with a soft metal that wouldn't break.
A thick mixture of clay and charcoal powder is applied to the blade's upper sides and dull back edge, leaving the sword's primary edge only lightly coated so that it would be flexible.
Answer:
We are great at filtering sounds!
Explanation:
During the first stage of the experiment known by psychologists as the cocktail party effect, Edward Cherry he could determine:
- Listeners got really confused and were unable to separate conversations when listening simultaneously at both ears at the same time.
Later, when messages were played each on one ear only, participants could differentiate 1 conversation clearly and easily, but ignored completely the other one. Here he could determine:
- Listeners couldn't identify language, phrases, backwards playing and even their own name on the rejected conversation.
Central america
hope this helps :)
