Diameter9 tenths m
6Sandwich halves
10.1Crayons
30 millionSmoke particles
Photo from Wikimedia Commons
Viking Round Shield
The linden-wood shield of Norse warriors/Historical Weapons
Viking shields were typically round, made of planks of linden or fir, with an iron boss protecting the hand grip. They were lightweight enough to be used offensively as well as defensively. Archaeological finds show diameters ranging from 45 cm to over 90 cm.
Measurements
Thickness (planks)8 thousandths m
3.2 hundredthsCandle heights
1.4 hundredthsHead circumferences
1.4 tenthsRubik's cubes
Mass5 kg
500 millionPollen grains
50,000Honeybee weights
Boss diameter1.5 tenths m
150 millionNanometers
394,737Violet light wavelengths
Boss height8 hundredths m
7 hundredthsShoelace lengths
3.2 tenthsScrewdriver lengths
8 tenthsHarmonica lengths
Rim-to-rim (typical)8 tenths m
61.5Sugar cubes
4.44Bananas
2 hundredthsWater tower heights