This is not totally new news but a recent article in Scientific American has called some attention to it as researchers have built the world's tiniest radio out of a carbon nanotube. The tiny nanotube is placed between two electrodes and combines the roles of the major electrical components in a radio, including the tuner and amplifier. It can tune in to a radio signal and play the audio through an external speaker.



The nanotube radio works differently than a conventional radio that has an antenna, tuner, amplifier, and demodulator. A single carbon nanotube can tune in to a radio signal, amplify it, and demodulate it to get the audio encoded on the carrier radio wave. The nanotube starts vibrating in tune with a radio signal if the signal is at the same frequency as the nanotube’s natural resonance frequency. This can be controlled by the electric field that is placed on the nanotube so it can be tuned to the proper frequency. The first song played was appropriately Good Vibrations by the Beach Boys.
At the AMTA conference last year I saw some research on using nanotubes as antennas for miniature radios but the initial work showed they were not able to make them work very well at RF frequencies.

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这里有碳纳米管调谐、放大、解调RF音乐的视频。 太NB了！单个碳纳米管就能做到这么多事情。

最近一段时间，总是被无情地打击。看看别人做出的成绩，再看看我们的，真是不值一哂。

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上周六抽空，约了百度胤和微软德土去北影泡妞。一开始说到北航，结果我们被满场的人影晃晕了，只好再取道来到北影。这里场地很不错，人也不多，而且打球的人普遍素质比较高，玩得很尽兴。

冬眠这么长时间，初次出来活动，难免浑身疼痛。

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这个周末土人要来，球王带领我们去扫荡。

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继续我们那没日没夜的工作。