Sorry for inconvenience. Currently Helen does not officially support mobile browsers due to simultaneous media playback. Please use lastest desktop browsers instead.
For better experience in smartphones, we're making a application. Please let me ask for your continuous interest.
클로드 섀넌에게 완전 비밀성이란: 어떠한 계산력도 일회용 암호표를 깨는데 도움이 되지 않는다.
Helen is a nonprofit open dubbing solution project which is a solution for those in the blind spot of knowledge and a medium that will open the horizon of our knowledge