Have you ever enjoyed the cool refreshment of a popsicle on a hot,summer day? If so,you have an 11-year-old boy named Frank Epperson to thank.One winter day in 1905 young Epperson was making soda pop by mixing powdered soda and water.He accidentally left the mixing bucket outside with the mixing stick in it overnight.That night,the temperature reached freezing.In the moring,Epperson discovered that the fruit-flavored liquid had frozen to the stick.