On this episode of Whipcast we'll hear from my friends April Choi and Bethany Byrnes who are both professional fire performers as well as whipmakers. April, who is a mechanical engineer and multi Guinness world record holder was recently featured on the popular YouTube channel Smarter Every Day to help research what happens at the exact moment a whip cracker breaks the speed of sound. We'll discuss fire whip construction, our first time making a whip, April and Bethanys journey to where they are today and more.