Smallest Robots Ever Made | Micro-robotics (Nanobots)

We're looking at several of the smallest robots ever! The largest on the list is the size of an insect, the smallest is the size of a blood cell.
https://youtu.be/pcCfcYqcZgs
Chapters
0:00 Intro
0:17 Robobee
1:07 Bristlebot
2:15 Millirobot
3:26 Bubblejet
4:55 Microscopic Robots
6:50 MIT Colloid Robots
7:30 Blood cell Robots
Video Sources
Robobee
https://www.youtube.com/watch?v=KJ8Uf...
https://www.youtube.com/watch?v=IP4B1...
https://www.youtube.com/watch?v=K9Jh9...
https://www.youtube.com/watch?v=loHzo...
Bristle bot
https://www.youtube.com/watch?v=JgEnX...
Millirobot
https://www.youtube.com/watch?v=OXRmx...
https://www.youtube.com/watch?v=4Mqi0...
Bubblejet
https://www.youtube.com/watch?v=G2mA0...
Microscopic Robot
https://www.youtube.com/watch?v=2TjdG...
MIT Colloid Robots
https://www.youtube.com/watch?v=Cg--U...
Blood cell Robots
https://www.youtube.com/watch?v=qe_uW...