Physics and chemistry have produced two basic laws of thermodynamics that are obeyed by all forms of matter and energy, including living organisms. The first law is that of conservation of matter and energy, which states that matter and energy cannot be created or destroyed. Matter and energy can be transformed, and energy can be converted from one form into another, but the total of the equivalent amounts of both must always remain constant.
The smallest, thinnest needle is the nano 4mm, 32 gauge needle. By comparison, this needle is thought to be as thin as two strands of hair. The risk of injecting into muscle tissue is very rare when using this needle.
By understanding a little about how sewing machine needles are made and the different types available, any machine owner can be sure they are using a needle that meets their requirements. The Basics of Sewing Machine Needles. A sewing machine needle is one that is customized to be used in a sewing machine. This type of needle has a few significant differences from a needle for hand stitching, although it serves the same basic purpose. Needles made for Janome sewing machines have the eyehole close to the point rather than at the top.