Tuning Forks

INSERTING THE TUNING FORKS
DETAILED SOLUTION

If you play the organ, or have tinkered around with a xylophone, you should know that long pipes produce a low pitched note, whereas shorter pipes produce a higher pitched note.

Did you notice the large T-bar in the centre of the devices? Part of the T-bar is always visible whenever you are close up to a device. Click a tuning fork on this part of the T-bar to listen to the note it makes.

PURPLE AND GREEN DEVICES

You know the purple device and the near right mirror are associated with each other. Similarly, the green device and the far left mirror are associated with each other.

The tuning forks having the same colour as the device must be inserted into the slots in the same sequence as the organ pipes below the associated mirror. The sequence is from narrow to wide on the triangles and on the swirls. There are four different notes, and they are designated in the diagram as follows:

H=HIGHEST, H2=SECOND HIGHEST, L2=SECOND LOWEST and L=LOWEST

NEAR RIGHT MIRROR	FAR LEFT MIRROR

PURPLE DEVICE

The two tuning forks to be inserted have purple handles

Click each one on the T-bar to hear the note made by it

These tuning forks are marked H2 and L2 (in yellow) in the graphic

L2 makes a lower pitched sound than H2

Insert L2 and H2 in the slots as marked on the plate

GREEN DEVICE

The three tuning forks to be inserted all have green handles

Click each one on the T-bar to hear the note made by it

These tuning forks are marked H, L2 and L (in white)

L has the lowest sound, then L2 and H the highest pitched sound

Insert H, L2 and L in the slots as marked on the plate

PINK AND GOLD DEVICES

You know the pink device and far right mirror are associated with each other. Lastly, the gold device and near left mirror are associated with each other.

H=HIGHEST, H2=SECOND HIGHEST, L2=SECOND LOWEST and L=LOWEST

FAR RIGHT MIRROR	NEAR LEFT MIRROR

Note that the triangle above the organ pipes on the near left mirror is reversed. Therefore, the sequence of the tuning forks is taken from right to left.

PINK DEVICE

The two tuning forks to be inserted have pink handles

Click each one on the T-bar to hear the note made by it

These tuning forks are marked H and H2 (in yellow) in the graphic

H makes a higher pitched sound than H2

Insert H and H2 in the slots as marked on the plate

GOLD DEVICE

The two tuning forks to be inserted have gold handles

Click each one on the T-bar to hear the note made by it

These tuning forks are marked L and H2 (in white) in the graphic

L makes a lower pitched sound than H2

Insert L and H2 in the slots as marked on the plate