4 ms·Probably similar to antennas — using phase shifting and interference.by pornel 1y agoProbably similar to antennas — using phase shifting and interference.amelius 1y agoYes, probably, but my question was more about the glass cover and if it wouldn't basically destroy the effect?spookie 1y agoIf it is touching the glass it amplifies it, if anything. (Edit: I should say it amplifies some frequencies while attenuating others)