18

this weekend, my friends and i were practicing for a presentation of a song we are going to do at senior luau. When my friend was playing guitar, i noticed that our physics knowledge could explain how guitar works. It is all about frequency and its relationship with length which we had been learning. as he slides his hand toward the bottom of the guitar, the pitch goes higher and higher because the frequency is greater due to the shortening of the length. after figuring that out, i began to experiment with guitar because i wanted to test it out in real life example. although i had a knowledge, i dont think i really examined a real life situation where that happens and how frequency could affect the pitch. So i examined and experimented and i was satisfied with the results. after examining it, i noticed how clever people were to invent things like this. I wonder if they knew the physics property when they made instruments.