Terrible science.
Ultrasound doesn't travel very far through ground and it spreads like a pond ripple, not a beam.
Ultrasound doesn't have colors.
But light does and if you bounce a white light off a blue surface then a yellow surface, you get black, not green.
The game designers' colors mix subtractively like paint, not like light.
"It's just a game"... but not one you should let kids play unless you want them to
have a hard time in science classes because they have to unlearn before they learn.
It's fine with me if a game designer wants to do fantasy, but they should make up their
own cool names and not copy ones from science and arbitrarily assign them different meanings.
Ultrasound doesn't travel very far through ground and it spreads like a pond ripple, not a beam.
Ultrasound doesn't have colors.
But light does and if you bounce a white light off a blue surface then a yellow surface, you get black, not green.
The game designers' colors mix subtractively like paint, not like light.
"It's just a game"... but not one you should let kids play unless you want them to
have a hard time in science classes because they have to unlearn before they learn.
It's fine with me if a game designer wants to do fantasy, but they should make up their
own cool names and not copy ones from science and arbitrarily assign them different meanings.