Input interpretation
allotropes | particle size
Summary
median | 25 µm highest | 2 mm (gray selenium) lowest | 1 µm (diamond) | (based on 3 values; 23 unavailable)
Entities with missing values
graphite | black phosphorus | red phosphorus | mixed sulfur | diphosphorus | disulfur | black arsenic | gray arsenic | black selenium | trisulfur | ... (total: 23)
Particle size rankings
1 | diamond | 1 µm 2 | activated charcoal | 25 µm 3 | gray selenium | 2 mm (based on 3 values; 23 unavailable)
Unit conversions for median particle size 25 µm
0.025 mm (millimeters)
2.5×10^-5 meters
9.843×10^-4 inches
0.9843 mils
Comparisons for median particle size 25 µm
≈ ( 0.25 ≈ 1/4 ) × length of a rod cell photoreceptor ( ≈ 100 µm )
≈ 0.42 × length of a human sperm ( ≈ 60 µm )
≈ 0.83 × length of a skin cell ( ≈ 30 µm )
Corresponding quantities
Light travel time t in vacuum from t = x/c: | 83 fs (femtoseconds)
Light travel time t in an optical fiber t = 1.48x/c: | 123 fs (femtoseconds)