Stargate's unstable vortex visual effect, nicknamed the "kawoosh," was created in a unique way behind the scenes. In 1994, the original Stargate movie came out, starting a vast franchise that includes three movies, four TV series, and one web series. This transmedia franchise is popular 29 years after the debut film due to Stargate’s powerful villains, strong world-building, and unique premise.
https://screenrant.com/stargate-visual-effect-explained-bts-how/