How old do you have to be to invent something: ten, twenty, or thirty years old? How about older? Don't tell K. K. Gregory that. When she was ten(1995), she made her invention, called Wristies.
While playing out in the snow, her arms hurt because they were cold. She made a warm fingerless(不分手指的)cover that kept her hands and arms warm. She could wear them under her coat. She shared her idea with a few other people, and they liked it.
She applied for a patent(申请专利)on her idea. Perhaps Kathryn's biggest problem was that adults didn't take her seriously. They thought that the idea must have been her mother's.
Some people gave Kathryn some good advice. They told her to wear her Wristies so people would see them and ask what they were. By telling people the name of her invention, she was building a brand. Starting business at the age of ten may be not easy for a ten-year-old girl. I hope she can succeed. Good luck, K. K. Gregory!
