There are some things you are so used to that you never thought might have a hidden meaning. For example, the jacks you put in your devices have little plastic rings on them that separate different sections. I bet you’ve never even noticed, but all credit cards, no matter what bank or country they come from, are the exact same size. Whistles can work perfectly fine even if they don’t have that ball inside. Have you ever wondered why these and many other things are this way and no other? #brightside Animation is created by Bright Side. —————————————————————————————- Music by Epidemic Sound https://www.epidemicsound.com Check our Bright Side podcast on Spotify and leave a positive review! https://open.spotify.com/show/0hUkPxD34jRLrMrJux4VxV Subscribe to Bright Side: https://goo.gl/rQTJZz —————————————————————————————- Our Social Media: Facebook: https://www.facebook.com/brightside Instagram: https://www.instagram.com/brightside.official TikTok: https://www.tiktok.com/@brightside.official?lang=en Stock materials (photos, footages and other): https://www.depositphotos.com https://www.shutterstock.com https://www.eastnews.ru —————————————————————————————- For more videos and articles visit: http://www.brightside.me

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