Milkshake machine – engineers way of shaking a milkshake

Phillip Torrone

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December 5th, 2006 6

Steinar writes in with the “engineers way of shaking a milkshake”… –

“Take a powerful DC amplifier, connect it to a large woofer, feed the system with a signal generator, and at the end, just add milkshake. Of course it is also possible to measure the g-force of the shaking” – photos & video.

6 thoughts on “Milkshake machine – engineers way of shaking a milkshake”

trebuchet03 says:

December 5th, 2006 at 2:06 pm

Was that super low frequency fed in there too?
stolsens says:

December 5th, 2006 at 11:48 pm

It looks like that, but it is only a sync problem between the framerate of the camera and the “high” frequency shaking. It is a DC system, so it could handle it. The speaker might get hot and burn, but anyway, adding a low frequency could maybe change the quality and taste of the finished milkshake ;-)
HT says:

December 6th, 2006 at 1:19 pm

He’s right. the apparent super low frequency is due to the said sync problem. The system works down to 0Hz, but the practical use for frequencies below 1 Hz is limited because you the q-force is limited by the stroke length of the speaker.