My first Danbo. Relative sent my gift early after seeing my figure photos. I may go down the rabbit hole with Danbo now….
When science and engineering geek out; build a rocket car to see 1000mph
1,000 mph car tests its rocket engine
Hybrid rocket uses hydrogen peroxide and rubber, produces 3 tons of thrust.
photo book arrived today. I ended up getting the hard cover and it's nicely done. Thank you Sheng!