Adult hand vs Wine bottle: size comparison
Adult hand: 18.9 cm. Wine bottle: 30 cm. Both silhouettes are drawn at the same scale.
Size ratio: ×1.6
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
Wine bottle
30 cm
What is measured Height of a 75 cl wine bottle
The 75 cl format took hold in the 19th century with trade to Britain.
Source : Wikipedia — Wine bottle