Dani,

I really enjoy your essays, you've got a very interesting blog. Keep up the good work. Hope all is well at LightSail.

Thanks for your encouragement :-)

i'm impressed by your brevity. a lost art for sure.

real-time control is one place where science is beautiful and fun.

A topic you know something about?

just enough to appreciate it. i didn't have the math skills to be a controls engineer, but i did design electromagnetic devices for a while, and totally envied the controls people who got to tie all the pieces together - electrical, electronic, mechanical, etc.

my favorite example is the video of the apollo lunar module making adjustments as it approached the command module.