French seams are mainly used on light fabrics. They are also used for people with delicate skin. When sewing with them, they require at least double the amount of fabric that the item being sewn requires.
Topstitching is used to accent seams and style lines, to give garments a structured finished look, and to hold seams flat.
decoration or strength
Crossed seams refer to the intersection of two seams in a garment or piece of fabric. This technique is commonly used in sewing to distribute stress evenly across the seam and provide additional strength. Crossed seams can create a more durable and visually appealing finish in the final product.
A lapped seam is one of the four major types of seams. The types of lapped seams are bound seams and Hong Kong seams.
Scissors
The first basketball was invented in 1942 by a physical education teacher named, James Naismith. The first basketball had seams on the outside that was used to identify the type of ball it was, and it was also used to for support. The seams in the basketball help the person playing keep grip of the ball.
fibre of hemp or jute treated with tar
An American football typically has 4 seams – one on each side where the two pieces of leather that make up the football are stitched together.
Yes, they are called coal seams.
This small , short bladed tool is used for clipping threads and ripping seams.
In sewing, seams are formed by joining the fabric together to create a finished product.
Those "seams" are actually called darts. Darts differ from seams because seam are used to join separate parts of fabric together. Darts are used to add shape to a garment like to taper a shirt from the bust to the waist. Darts are also used to customize the fit of a garment like to add shape to a straight or boxy shirt.