Say hello to Karl! He's joining the CoasterDad team to help Lyle and me build backyard roller coasters and other crazy fun things, all to bring Physics Family and Fun to kids everywhere! Right now, we're working on [ Ссылка ]. After that, we're getting started on our next backyard roller coaster adventure. -----
Please support me on Patreon - [ Ссылка ]

Here's where I post stuff:

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And for the grownups among us who want to rock their business...

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