Adult hand vs Light bulb: size comparison
Adult hand: 18.9 cm. Light bulb: 11 cm. Both silhouettes are drawn at the same scale.
Size ratio: ×1.7
Adult hand
18.9 cm
What is measured Length of an adult hand, wrist to middle fingertip
A hand has 27 bones: both hands hold a quarter of all the bones in the body.
Source : Wikipedia — Hand
Light bulb
11 cm
What is measured Height of an A60-shaped light bulb
The "60" in A60 is its diameter: 60 mm.
Source : Wikipedia — Incandescent light bulb