A laboratory is a place that operates under controlled conditions for the development of work, research and technical or scientific experiments.
A laboratory is a place equipped with the necessary means to carry out experiments , research or scientific or technical work . In these spaces, environmental conditions are controlled and standardized to prevent influences other than those anticipated, with the consequent alteration of measurements, and to allow tests to be repeatable.
Among the conditions that a laboratory tries to control and standardize are atmospheric pressure (to prevent the entry or exit of contaminated air), humidity (which must be reduced to a minimum to prevent the oxidation of instruments) and the level of vibrations (to prevent measurements from being altered).
Types of laboratory
There are several types of laboratories:
* Chemistry laboratories study compounds and mixtures of elements to test scientific theories. Burners, stirrers, separating flasks, distillation flasks, crystallizers, pipettes and test tubes are some of the instruments used in this field;
* Biology laboratories , on the other hand, work with biological materials at all levels ( cells , organs , systems ). Microscopes, thermometers and surgical equipment help scientists carry out their activities;
* Clinical laboratories are those where clinical diagnostic experts develop analyses that contribute to the study, prevention, diagnosis and treatment of health problems.
In a broader sense, the notion of a laboratory refers to any place or reality in which something is developed or experimented with. Thus, we can speak of a language laboratory to refer to the teaching centre where students learn and practice foreign languages.
The use of animals in laboratory tests is considered cruel.
Animal testing
Vivisection is the use of non-human animals for laboratory experiments , and this represents one of the most controversial aspects of science. It is a practice that occurs not only in medical sciences, but also in the beauty, military, tobacco and chemical industries in general. The torture that humans inflict on other species seems to know no limits.
The term guinea pig has its origins in the 16th century, when man began to use other animals to explore the mysteries of our physiology , as well as to evaluate the effects of countless substances and medicines, not to mention poisons, and various industrial processes. Individuals of various species, from primates to dogs, have died and continue to be killed so that humans can satisfy their thirst for superiority and their absurd need to prolong life.
Torture in laboratories
The main purpose of laboratory experiments on animals is toxicity testing, including dermal and oral toxicity tests, immersion, injection and inhalation studies, and the Draize test. Pity, compassion and consideration are not present when so many innocent beings are subjected to lethal doses of substances of all kinds or to tests of resistance to gravity; it is an example of cowardice and a complete lack of sensitivity that takes place every day, in all parts of the world.
Thanks to undercover operations, various animal rights groups have been able to expose the terrible torture that many laboratories carry out behind closed doors. This has led many researchers to avoid animal testing, at least to avoid becoming embroiled in a public scandal.
No one can bring back the lives of the millions of innocent victims, but science has shown that there are methods that do not use other living beings to test new substances, and therefore there is no excuse for continuing this massacre.