Light and sound are communicated using modern technology, from one beacon to the next, until the message has reached the end of the line. Slow sounds…..
![](https://sonicrider.nl/wp-content/uploads/2021/12/GLOW2021_PING_BvOF_02_lr_YXJfODAweDQwMF9kXzFfanBnXy9fYXNzZXQvX3ByaXZhdGUvc25pcHBldC80MTEw_21b20f1c-300x150.jpeg)
Light and sound are communicated using modern technology, from one beacon to the next, until the message has reached the end of the line. Slow sounds…..