The worldwide exclusive, original 3-part documentary series takes viewers on a journey into the history of the Internet with exclusive interviews and behind-the-scenes insight into the remarkable technology that now permeates our lives.
这部全球独家的、原创的3部分纪录片系列将观众带着专访进入互联网的历史之旅，并在幕后洞察如今渗透到我们生活中的非凡技术。
维生素，又称维他命，适量摄取可保持身体健康，而过量则会中毒。维生素已成为价值千亿美元的产业，Derek Muller博士讲述维生素的科学和历史，以及怎样合理摄取。
Almost one billion of us take a regular dietary supplement, mainly vitamin tablets. Vitamins are enthusiastically endorsed by celebrities, and vitamin-fortified foods line our supermarket shelves.
But how safe are these products Is it true that vitamins are “natural” and therefore can’t do you an...
