{"id":"b8187d1d5676c6bab434de683bf2f170","text":"The crack of a whip is actually a tiny sonic boom, since the tip breaks the sound barrier.","source":"djtech.net","source_url":"http://www.djtech.net/humor/useless_facts.htm","language":"en","permalink":"https://uselessfacts.jsph.pl/api/v2/facts/b8187d1d5676c6bab434de683bf2f170"}