0Burf 6 years ago Because the downward curvature of the edges blocks more sunlight from the sides, shading your eyes better. And it makes you look less like Donald Duck than does a flat bill.
Comments
6 years ago
Because human heads are round, not square.
Answer 6 years ago
Not every head is round haven you heard of squares :-)
6 years ago
Because the downward curvature of the edges blocks more sunlight from the sides, shading your eyes better. And it makes you look less like Donald Duck than does a flat bill.