# Antenna to receive 50Hz

The human body seems to be a good antenna to pick up 50Hz, at least touching a scope's probe shows a 50Hz waveform more than a volt in amplitude. Is it possible to construct an electronic antenna that does the same thing? (Wavelength at 50Hz is 6000km)
And if there's so much energy in it (1V in 1M$\Omega$ is 1$\mu$W), then why don't high-impedance pins pick this up?

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