In this edition of Tech It Out, CGTN visited Chinese Academy of Sciences again to find a new way to "talk" to machines! Researchers have designed a no-touch sensor to control tech through water vapor.

On Science Saturday, we review the major science news of the past two weeks, including potential for life in the clouds of Venus, Washington announces ban on TikTok downloads, wildlife populations down by almost 70 percent since 1970 due to human activity and winners of "Oscars of Science" announced.