Telling stories is one of the most powerful means that leaders have to influence, teach, and inspire. What makes storytelling so effective for learning? For starters, storytelling forges connections among people, and between people and ideas. Stories convey the culture, history, and values that unite people.
Rat teeth are ranked 5.5 on this scale, which means their teeth are harder than copper and iron. The jaw muscles of a rat can exert up to 12 tons (or 24,000 pounds) per square inch. By comparison, a great white shark bites with a force of 1.8 to 2 tons per square inch
. The scale ranks from 1 (softest, such as Talc) to 10 (hardest, such as Diamonds). Rat teeth rank about 5.5 on the Mohs Scale, harder than iron or copper. Human tooth enamel only ranks about 5 on the Mohs Scale. Because their teeth are so hard, rats are able to chew through most of the materials people use to keep them out, such as: