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The Water Scale is ingenious in its simplicity, using little more than a piston and a tube to weigh your cooking ingredients. The scale, from designers Muzaffer Kocer and Ayca Guven, uses Archimedes’ Principle to measure weight.
The bowl of the scale is connected to a plunger that floats on top of water inside the scale’s body. When the bowl is pushed down, the water is displaced and flows up a tube. This tube – which also contains a floating plastic ball to make it easier to see – is graduated. You read it just like a thermometer.
Archimedes’ Principle says that – for a floating object – the amount if water displaced is equal to the mass of that object. Thus a potato weighing half a kilo (a big potato, to be sure) and dropped into a floating bowl will shove aside half a kilo of water. Thus a scale can be calibrated.
This design keeps the Water Scale incredibly simple, as you can see from the rendered images above, requiring no electronic or complex mechanical parts. I have one question though. The scale is designed to weigh objects of up to a kilogram (2.2-pounds). Doesn’t this mean that you’d have to have a kilo (liter) of water on board to do that?
Water Scale product page [Muzaffer Kocer via Yanko]
See Also:
- Weigh to Go: Luggage Tag and Scale Combo
- Wi-Fi Scale Tweets Your Weight
- IPhone-Connected Weighing Scale for Your iDiet
- Folding Digital Kitchen Scale is Easily Hidden
- Optical Mouse with Built in Weighing Scale: You Know What it's For …
- Weigh Your Bodybag With a Portable Scale
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