I have to admit to having done something embarrassing. I grew some cress. Two lots in fact. One was on the dining room windowsill as a control, the other was sandwiched between a wireless router and an Apple base station, about 30 feet from the first tray.
Both grew. The dining room window plate:
And here is the plate growing between the router and the Apple base station:
I know there are two wifi routers there in the picture as well as the base station but the second one was only turned on for the last two days of the six day growth period shown here.
Tasted as good as cress ever does. Not something I rave about personally.
Unfortunately I set the experimental seeds to sprout before we had eaten all the cress which Daniel has growing on the kitchen windowsill as a routine:
Well duh, as my daughter (frequently) says. There is a limit to how much cress a given household can consume, even with Daniel liking vegetables. I'm also embarrassed that I even contemplated that the cress might fail to germinate next to the router(s).
More fool me.