Same grounds, three instruments
· mass fraction below each size
In numbers
· median and fines
Particle shape
coffee flakes
all spheres
coffee flakes = 1,578 elongations measured in the photo
Thickness / width
the axis a photo cannot see (assumed)
Fines mass share
literature: about 10–29% below 100 µm
Smallest size the camera sees
about 330 µm in Gagné's example photo
Fines left clinging on the sieve
scenario for static-driven clumping
Sieve shaking
long enough
short
long enough = flat flakes also slip through diagonally