Galileo Galilei-Galileo (1564-1642) was the most successful scientist of the Scientific Revolution, save only Isaac Newton. He studied physics, specifically the laws of gravity and motion, and invented the telescope and microscope.
1 Stools that are black, tarry, or bloody.  You recognize symptoms of chemical or toxin food poisoning, such as vomiting, diarrhea, sweating, dizziness, tearing in the eyes, excessive salivation, mental confusion, and stomach pain, beginning about 30 minutes after eating contaminated food.
See Related Links. Symptoms can occur within an hour; or can take as long as 36 hours to appear. This all depends on how fast your body processes the food, generally the average is around, about 8 hours maybe a couple less. It can take anywhere from 6 hours to 48 hours after being exposed to contaminated food. More information There are many causes of foodborne illness. Ingested toxins can hit very quickly within a couple hours. Ingested microbes can take a while to build up the effect - which can mean days or even weeks. See Related Links. Symptoms can occur within an hour; or can take as long as 36 hours to appear.