If you reheat the food, the bacteria will die but the toxins will still be there and they will still make you sick. With this type of food poisoning, you usually vomit anytime from immediately after eating to 7 hours later. Some people also get diarrhea. Bacillus cereus can also cause diarrhea that strikes 6-15 hours after eating. There is also a type of non-contagious food poisoning caused by the bacteria Clostridium perfringens3 .
Later, Emperor Wu of Han constructed the Great Wall in a large scale. He had Yanmenguan Pass restored in 130BC, and the Qin Dynasty Wall renovated in 127BC. In order to protect the Hexi Corridor, he ordered the defensive line between Yongdeng County and Jiuquan in Gansu Province be built in 121BC.
6. How long did it take to build the Great Wall in China? The Great Wall of China was built in several stages, not in one continuous effort. Beginning is the 6-7th century BC and ending in the 16th century AD. 7. How wide and how tall the Great Wall of China is? The Great Wall is wide enough at the top for five horses or ten men to walk side by side. The Great Wall ranges in height from just a few feet to over 30 feet tall. Since some of the Wall is built on mountain peaks and high ridges, it looks even taller. 8. What is the best time to visit the Great Wall of China?