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Image 1 Above: Initial view


Image 2 Above: User has pressed tab and focus is moved to the magnet.


Image 3 Above: User has pressed Enter, and the magnet is now able to be moved using keyboard.


Image 4 Above: User is in a move state and is also pressing a modifier key, the magnet moves in larger steps. The arrows on the magnet change to visually indicate the change.


Image 5 Above: User is holding a different modifier key, the magnet moves in smaller steps. The arrows on the magnet change to visually indicate this change.


Image 6 Above: Describes a possible issue with keyboard interaction and speed of moving the magnet.

"

Current is related to the speed of magnet movement.

Faster the magnet moves, the greater the current.

Slower the magnet moves, the smaller the current.


Problem:

In this scenario to the left, it will take a keyboard user 4 keystrokes to move to the other side of the coil (as indicated by the green dots).

If the user has sufficient motor acuity, they can move the magnet quickly by holding down the modifier and repeated tapping of keys.

If the user does not have sufficient motor acuity, it will be difficult"


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