含中文字幕节目   

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A, C, G, and T. Adenine, cytosine, guanine, and thymine. These are the four chemical building blocks of the DNA molecule. They are components of nucleic acid, which gives DNA its ton...

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United States. Environmentalism under fire. Soaring emissions. The rhetoric about environmental controls killing jobs is getting louder and louder. Isn’t it strange, Republicans retort, that peop...

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In some ways,the nineteen eighties seemed like the opposite of the nineteen sixties.The sixties were years of protest for social justice and change.Many Americans demonstrated against the Vietnam War....

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Es muy revelador que la palabra que abre cualquier conversación en fiyiano sea bula: vida. El saludo nacional es una invitación a la alegría, una luminosa manera de interactuar incluso con desconocido...

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นักวิทยาศาสตร์ที่มหาวิทยาลัยแคลิฟอร์เนีย วิทยาเขตเบอร์คลีย์ และที่มหาวิทยาลัยสแตนฟอร์ด ต่างพัฒนาผิวเทียม E-Skin ขึ้นมาได้ ซึ่งอาจช่วยให้หุ่นยนต์มีความไวต่อการสัมผัสและทำงานได้ทั้งหนักและเบา และอาจช่วย...

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Squyres: Spirit is now hunker[ed] down due to winter. Spirit is deep in the southern hemisphere of Mars and what that means is winter is pretty tough, and so what we've done is we have parked the vehi...

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Pubs, musique, chaleur humaine, identité celtique ont convaincu de nombreux jeunes Européens à venir vivre à Dublin. Ils ont changé le visage d’une capitale longtemps considérée comme provinciale. Auj...

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Sạc điện thoại trước khi đi ngủ là thói quen của rất nhiều người, nhưng dành 8 tiếng để sạc qua đêm không phải là một điều lý tưởng. Dành một phần ba thời gian trong ngày trong ngày để sạc điện tho...