Seconds after he smashed the Olympic record for the men's 100m sprint, Jamaican sprinter Usain Bolt delighted crowds by extending one arm skywards, as though about to hurl a bolt of lightning at the stars.Seconds after he smashed the Olympic record for the men's 100m sprint, Jamaican sprinter Usain Bolt delighted crowds by extending one arm skywards, as though about to hurl a bolt of lightning at the stars.