Dan Markham

Dan Markham is the creator of the YouTube channel "What's Inside?" where he explores the inner workings of everyday objects by cutting them open. The channel, which was originally created under his son Lincoln Markham's name in May 2008, gained significant attention with the release of their first "What's Inside?" video in January 2014, which examined the interior of a baseball. One of the channel's most popular videos, "What's Inside the YouTube Silver Play Button," amassed nearly 10 million views within three months. Over the years, Dan has dissected a variety of items including a wasp nest, a bowling ball, a giant jawbreaker, and a grenade, captivating millions of viewers with each reveal.

Career & Family Life

The inception of the YouTube channel was inspired by Lincoln's second-grade science project, where he expressed curiosity about the contents of different sports balls. This project sparked an idea that blossomed into a successful online presence. Dan often shares glimpses of his life and interests on social media, as seen when he posted a photo of a Rivian truck on his Instagram in September 2021. He and his wife Leslie have three children: Lincoln, Claire, and London. Among the many fascinating items Dan has cut open, one notable example is a football helmet signed by BYU quarterbacks Ty Detmer and Taysom Hill.