Everyday Objects
Why Do Scissors Have Different Handle Sizes?
Scissors have different handle sizes so multiple fingers fit in the larger loop while just the thumb sits in the smaller one, giving you more control and less fatigue.
objectshandle design
Vehicles
Why Is the Fuel Door on Different Sides?
Fuel doors appear on different sides because manufacturers make their own design choices about tank placement, and there is no universal rule requiring a standard side.
vehiclesfuel cap placement