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.
A new invention â the microsphere nanoscope â combines a standard microscope with a complex device (called a transparent microsphere) to allow you to see things up to 20 times smaller! Researchers believe this powerful new tool could allow them to see inside human cells and even examine live viruses in detail for the first time ever. In the future, scientists believe they'll be able to develop this tool to see even smaller things. Many researchers believe there is no theoretical limit on how small an object they'll one day be able to see.