![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVO64q6OAPD156CHsFN0si0NVroQIFjxPBGlHx8hpcXCF4mLReviMuQ60qU5NR8H77BXxiqnpWm5Txpz5lAJMjHrJKqiFkM_ZcEnSgdLUjI-jsm1t30pvapaRwweki_yiyLQM_Vw/s200/Crookes_radiometer.jpg)
Cool store, located in the Holt Renfrew Centre, subway level , near Yonge & Bloor. They have some astronomy items. They also appear to sell telescopes.
It's funny how the function of this simple device is subject to heated (sorry about that) debate...