World's Biggest Potato Battery | GregVlog: Blue Peter

Is this the world's biggest potato battery?! A behind the scenes vlog from Greg's 'science of electricity' item for Blue Peter [see it here: http://www.bbc.co.uk/iplayer/episode/b052040m/blue-peter-potato-power] My other Blue Peter items: Why are chillies hot? /watch/U8pdLpvMixpMd Can you run on custard? /watch/YBzSMQHMmcvMS How to make a comet: http://www.bbc.co.uk/cbbc/clips/p01znfqr How to fireworks get their colour? [coming soon!] To get in touch: twitter: @gregfoot instagram: gregfoot Facebook: /gregfootFB

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