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1.2

Minor Versionm

by Procheta Mallik

Introduction

Make models of ears of different sizes and hear through each, trying to differentiate through which one you hear clearer and/or louder

Tools

Parts

    • Be careful while handling scissors or any other sharp tool.

    • Make sure there are no sharp cuts on the side of the cone that goes inside the ear.

  1. Cut a cardboard piece of size 6 cm x  5cm and roll it into a cone shape. Make diameter of one end small enough (~1 cm) so that it fits into your ear Make diameter of one end small enough (~1 cm) so that it fits into your ear
    • Cut a cardboard piece of size 6 cm x 5cm and roll it into a cone shape.

    • Make diameter of one end small enough (~1 cm) so that it fits into your ear

  2. Cut another piece of cardboard of size ~20 cm x 15 cm. Like above, roll it into a cone, keeping the diameter of one end small enough to fit inside the smaller cone Outer diameter of the cone for the given size turns out to be around 6 cm. Outer diameter of the cone for the given size turns out to be around 6 cm.
    • Cut another piece of cardboard of size ~20 cm x 15 cm. Like above, roll it into a cone, keeping the diameter of one end small enough to fit inside the smaller cone

    • Outer diameter of the cone for the given size turns out to be around 6 cm.

  3. Check whether the cones are fitting into each other properly; it should be convenient to detach and attach them routinely Check whether the cones are fitting into each other properly; it should be convenient to detach and attach them routinely Check whether the cones are fitting into each other properly; it should be convenient to detach and attach them routinely
    • Check whether the cones are fitting into each other properly; it should be convenient to detach and attach them routinely

  4. Insert the smaller cone first to hear through and observe whether there is any difference in audibility. Join the bigger cone to the smaller one Continue listening to see if there's any difference in the loudness or clarity of sound.
    • Insert the smaller cone first to hear through and observe whether there is any difference in audibility.

    • Join the bigger cone to the smaller one

    • Continue listening to see if there's any difference in the loudness or clarity of sound.

    • Cardboard cones not fitting together.

    • End of cone too small or too big for your ear

    • How does the diameter of the cone affect hearing?

    • What happens if we use cones with large diameter at the end away from the ear?

    • What is the range of sound in decibels that is normal to human ear?

    • Make cones of different sizes similar to different animals and compare the difference in range of sounds which are compatible for humans and animals.

Finish Line

Suhail Ahanger

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