It might be the fan. Do more experiments and report back. You can also purchase ... | Hacker News

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		brador on May 18, 2013 \| parent \| context \| favorite \| on: School experiment finds cress won’t germinate near... It might be the fan. Do more experiments and report back. You can also purchase Em field detectors or make one yourself.

lifeformed on May 18, 2013 [–]

What do you think the fan would do?

eksith on May 18, 2013 | [–]

Some fans tend to be noisy ;)

Most new fans use brushless DC motors which have much less EM noise than most older brushed ones (also tend to be quieter). If the motor of the fan is brushed that would explain another source of EM interference.

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