News
Is it light blue because the sky is blue, or the water is blue? Nope, it's because your backyard swimming pool is likely painted blue. You're seeing the reflection of light off the bottom of the pool.
This method doesn't need to generate its own acoustic signal (as with sonar, for instance), relying instead on modulating reflections of incident underwater sounds to transmit data one bit at a time.
Results that may be inaccessible to you are currently showing.
Hide inaccessible results