Sound reflection from surfaces creating repetition.
AcousticsPhysicsSound
Current best complexity is 5:
Echo can be discovered in Concepts, categorized under Acoustics, Physics, Sound. Sound reflection from surfaces creating repetition.
It has been discovered by 72 boards and crafted 1,023 times, first appearing 5 months ago. Echo can be created from 628 recipes, and goes on to appear as an ingredient in 656 others.
Echo was first discovered by Lee's board 5 months ago. The lowest-complexity recipe (5) is held by ๐ง๐ท Muril2k10's Board ๐ง๐ท.
You'll find Echo in the Phonetic Alphabet collection.
Related concepts worth exploring include Steam, Vapor, Explosion, Thunder, Binary Star System, Solar Flare, and 6 more.