The video shows an example of building a bridge using the incremental launching method (ILM)
See more at intothemotion.com
The Daily Beetle by Kevin MacLeod is licensed under the Creative Commons Attribution 4.0 License. https://creativecommons.org/licenses/by/4.0/
Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1500025
Artist: http://incompetech.com/
