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New video of the ShutUp Gun in action

After the excitement generated by the SpeechJammer, a gun that quiets other people's speech, a video is posted to YouTube showing, for example, how a boring lecturer can be silenced.

Screenshot: Chris Matyszczyk/CNET

Loud screams of excitement have been heard ever since the revelation that two Japanese researchers had developed a gun that could stop people talking. Without killing them.

I wrote about this fascinating firearm only the other day.

Now the Japanese researchers who developed it are so excited by the excitement that they have released a YouTube video of the device.

And what a frisky little Colt .45 silencer it is.

Wired reports that the two creators, Kazutaka Kurihara at the National Institute of Advanced Industrial Science and Technology in Tskuba and Koji Tsukada at Ochanomizu University, are bemused at the sudden clamor about their prototype.

And yet this movie shows why this gun could be so good for social harmony in our ever-cluttered future.

A phone-natterer is neutered. A boring lecturer is hushed.

The gun itself is, in fact, merely a speaker and a microphone, both direction-sensitive, as well as a distance sensor, a motherboard, and a little cute code.

It operates on the principle of Delayed Auditory Feedback, replaying the speakers' words so soon after they have spoken them that they are disoriented. In a good way.

Perhaps the only drawback is that the SpeechJammer--or ShutUp Gun, as I prefer to call it--seems a little unwieldy.

Still, PCs were like that until Apple came along. Perhaps soon we will see these researchers do a deal with Cupertino and launch iShutYouUp.

I am sure that, in our turbulent times, it would have huge appeal for the silent majority.