19th
July
2020
Mysterious invisible waves as a defence
Another of the many “but how will I know if it works” moments; I have just plugged in a pair of technically magical devices, in the RV. Supposed to emit sound waves that I can’t hear, but that the beasts of the fields (OK, mice) will flee.
Read the rest of this entry »posted in genealogy, technology | Comments Off on Mysterious invisible waves as a defence | 261 words
