Mark Rober Hats
Main Tag:
Description: Mark Rober is an entrepreneur, educator, inventor, and former NASA engineer with a popular YouTube channel. He's known for his lighthearted videos that explore science and engineering concepts, such as "Egg Drop From Space" and "Can You Swim in Jell-O?". Rober's channel has nearly 69 million fans.
Main Tag:
Description: Mark Rober is an entrepreneur, educator, inventor, and former NASA engineer with a popular YouTube channel. He's known for his lighthearted videos that explore science and engineering concepts, such as "Egg Drop From Space" and "Can You Swim in Jell-O?". Rober's channel has nearly 69 million fans.
