Education, air balloon, Helen Warny, helium balloons, Michael Faraday, rubber balloon
Why do we have balloons in our birthday party?
It is believed that the Aztecs used intestines of cats, dried them, sewed with a vegetable thread to create an airtight seal. It was twisted into different shapes of animals and placed on the altar along with food and gifts as an offering to the Gods. With the invention of[…]