Many children from migrant families celebrate name days instead of birthdays. Greek children celebrate only their first and 21st birthdays, all the other anniversaries are on the feast days of the saints after which they're named.
A physicist visits Harrison to explain how electricity is generated, and teaches us how it can be conserved. Viewers can take part in a fun experiment to see electricity at work in their own bodies. Harrison goes to the Sea Aquarium to visit a marine expert and some willing aquatic life to explore why electric eels don't electrocute themselves and how sharks can detect our presence because of electricity!
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