"Jeff Liebermann" wrote in message
...
On Tue, 16 Aug 2011 21:01:07 +0800, Man-wai Chang
wrote:

I threw it into a tin can then invert it. It still rang when I dialed
its number.

Did you put anything over the open end of the tin can?

Must I use aluminium foil? Why does Al make a difference?

Because aluminum is known to block the government mind control rays
that are forcing you to post such drivel. With an aluminum foil hat,
you will be safe from cell phone radiation and mind control rays.


Putting head in microwave oven is more permanent cure for mind control rays.