가입하는 데 1 분도 걸리지 않으며 무제한 영화 및 TV 타이틀을 즐길 수 있습니다.
Stargazing Challenges
Blue Peter presenters Helen Skelton and Barney Harwood want to learn more about the solar system so they challenge scientists Helen Czerski and Jem Stansfield to find out more. They look at how to make telescopes and rockets, and use a toilet roll to measure the distances between planets.
실행 시간: 29 의사록
품질: HD
해제: Jan 10, 2012
국가: United Kingdom
언어: English