Technology is often a consequence of science and engineering â although technology as a human activity precedes the two fields. For example, science might study the flow of electrons in electrical conductors, by using already-existing tools and knowledge.
Depends: Depends on your body mass, the type of anesthesia used, the length of the procedure, and how your body metabolizes the anesthetic agent. Usually mostly worn off in 30 minutes to 2-3 hours, but may have some residual effects for 24hrs or longer.
The standard advice is not to drink alcohol or take any other intoxicants for 24 hours after your anesthesia. Alcohol and other intoxicants can interact with anesthesia drugs to increase the effect of one or the other or both.