What is it?

Scientific Glassblowing is the process of creating glass instruments for use in research and production. 
Scientific Glassblowing differs from the art form in that they work exclusively with borosilicate glass and quartz, both of
which have higher working temperatures than art (or "soft") glass and have the required physical properties, for
laboratory applications.

How is it done?

Using a torch/burner, scientific glass blowers heat, shape and seal glass tubing, rod and other pre-formed components into
glass appartatus similar to some of the equipment you may have seen in laboratories.  They are instrumental in
creating experiment-specific equipment for research purposes.