文章列表

• 1.【英语时差8,16】最古老的甜香剂和最新鲜的面包
• Honey has been around for a very long time. Cave paintings in Spain from over ten thousand years ago show people harvesting honey. Today honey is most...
• 2.【英语时差8,16】维生素
• Yael: What are all those pills you're taking, Don? Don: Vitamins, Yael. I'm really into my health these days. I take a pill for nearly every vitamin m...
• 3.【英语时差8,16】蜂蜜：可作食品酵母和天然防腐剂
• Leave it on the shelf too long and honey begins to crystallize. Heating the honey returns it to its original condition, but if you add water, you coul...
• 4.【英语时差8,16】人工海浪池
• For those lucky enough to live on either coast, going to the beach and frolicking in the ocean waves is a favorite summertime activity. Faced with the...
• 5.【英语时差8,16】火是什么？
• It's one of our most important tools, and holds a prominent place in many ancient philosophies and religions. The ancient Greeks believed that firealo...
• 6.【英语时差8,16】神奇的海底火山（上）
• Firefighters use water to battle a towering inferno. You might wonder if water could also stifle an erupting volcano. Actually, this experiment happen...
• 7.【英语时差8,16】危险的月球尘埃
• Don: Hey Ya?l, I was wonderingwhy don't we hear much about the moon anymore? Ya?l: Whadya mean, Don? D: It's just that back in the 1960s and '70s, sen...
• 8.【英语时差8,16】科学物理测验（下）
• Once the ball leaves the tube it will move in a perfectly straight line. Whats interesting, though, is that it wasnt until the 17th century that this ...
• 9.【英语时差8,16】击鼓有利于健身
• Ya?l: [OVER THE DRUMS] Don! Hey, Don! Hey! [DRUMMING STOPS] D: Did somebody say something? Y: Yes, over here, hello!?! D: Oh, hi Ya?l. What a sec, let...
• 10.【英语时差8,16】“笑”看发展（上）
• Last time we discussed joke evolution. Philosopher of science Daniel Dennett uses jokes to illustrate how evolution works. Very few people actually si...