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.
Depends on the bacteria/fungus. But most of food poisoning bugs take around 8 hours ish. There are some bugs that take less than 30 minutes, and some that can take up to 48 hours to kick in, but I would say that the majority of food poisoning bacteria take around 6-8 hours.