Ordinarily this centrifuge is used to separate radioactive honey from the comb. For those who wish to use mechanical television to speak to the dead, the presence of radio-activity is sure sign that ancient sighs are out there, waiting to speak to you. In the context of Ella's laboratory, however, it must be guessed that this machine has been converted to act as a scanning device for a totally analog, sugar-based tv system.     This was the first time either I, or my bees, had been in front of the device.