ScienceSign-language interpreter Rafael GrombelkaTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience01/22/2021January 22, 2021Sign language used is every bit as rich and complex as spoken language. We meet sign-language interpreter and performance artist Rafael Grombelka, who tells us more about deaf culture and the importance of sign language.https://p.dw.com/p/3oFDaAdvertisement