The photograph has played a decisive role in the history of science. Since its inception, it has become a powerful research tool, education and disclosure of science in all its branches. Through the record of images of different technological instruments it has been possible to represent and analyze many results product of years of research.

The heating blanket is a laboratory equipment used mainly in chemistry and biology laboratories, whose main function is to apply heat, evenly, to several containers with samples inside. This equipment is designed for use with difficult to position flasks and funnels and offers an alternative to thermoregulated baths.

The ovens are composed of two chambers: an internal and an external one. The outer chamber is made of steel sheet, covered with an electrostatic protective film. The internal chamber is usually made of aluminum or stainless material to better transmit heat; It has a set of shelves or shelves manufactured in stainless steel wire, so that air circulates freely, there are placed the elements that require dried or sterilized by dry heat. It is isolated from the outer chamber by an insulating material that maintains the high temperature conditions internally and delays the heat transfer abroad.