Any observer knows that dew can quickly put an end to a promising evening, or at least force an intermission as hair dryers are used to dry off fogged optics. In addition, dew may also carry harmful airborne chemicals which attack mirror coatings. While the Kendrick Dew Remover system is very popular, many home brew astronomers and ATM’s might want to make their own Dew Preventer.
Your local chapter of the Royal Astronomical Society of Canada
