Dominion Astrophysical Observatory

Ivy and Jeremy visited the observatory in April, and her post about it is here.  Ivy explained to me after we got home how the larger radio waves can penetrate dust in a way that light waves can't because they're smaller (I haven't checked my facts, I know she had it right but I may be mis-reporting!).  During the tour she was able to identify a Faraday Cage and explain what it was used for.  Apparently she's only the 3rd person the tour operator has ever had come up with the right answer in years or running it.


Faraday cage