MITx: 16.00x Introduction to Aerospace Engineering: Astronautics and Human Spaceflight
Having immense fun studying rocket science!
It is a breath of fresh air (or no air since we are in vacuum space :p) from my mundane daily work.
Sometimes you just need to do something totally irrelevant to your profession. Now I (sort of) (very briefly) know how a space rocket works!
I love learning new & random things (but introductory level only please haha can’t go too in depth XD)
impromptuz 
b 終於做番個 真.MIT b
b 終於做番個 MIT b