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The Government Communications Security Bureau (GCSB) is our spy organisation. At the moment, it can only legally spy on foreigners in New Zealand. However this organisation made a mistake spying on Kim Dotcom because he is a permanent resident. Also,
Spectrum 光谱 Do you know what a spectrum is? 你知道光谱是什么吗? It is a series of colored lights. 它是复色光。 How can we see a spectrum? 我们怎么能看到光谱? When you see sunlight through a prism, you may see a rainbow
Prisms 棱镜 Why can we see rainbows after rain? 我们雨后为什么能看到彩虹? We can see rainbows after rain because droplets of moisture in the air work like a big prism. 这是因为空气中的水滴就像一个大棱镜。 So what is
美国一家公司日前开通月球邮政包裹递送业务,仅需460美元,人们有机会把对自己来说有纪念意义的物品寄到月球上.此项业务旨在为一个私人探月车发射计划进行筹款. 给月球上寄点啥好呢 AP:
过去,曾有许多飞机和船只驶入百慕大三角地区后便神秘失踪,原因众说纷纭未有定论。最近,有科学家提出新理论,认为该区上空形成六边形的怪云,是令飞机和船只失事失踪的元凶。 Res