How do you like this idea?

[Inactive]

You're not.

Wow, that must be a first, and I didn't look it up either.. 

[Rik]

I vaguely remember learning about them in physics lessons, but more recently I've been aware of them in a broadcasting context. Of course, the braiding in co-ax cables is a form of cage.

[Inactive]

Of course, the braiding in co-ax cables is a form of cage.

Indeed Rik, a not very good one without a foil shield added it seems.

[Rik]

The foil certainly works better, In, but they are both relying on the cage effect. It's strange how old Michael impacts on our every day lives still, but hardly gets mentioned.