Potato clock

First of all, what is a potato clock Well, it s a clock apparently powered by a potato. You can get one in a kit. All you have to do is insert the two metal electrodes that are attached to the clock into a potato and then stand back and watch it start to tick. 

But this bit of chemistry has practical applications as well. It can be used to make a battery, such as the one required for the potato clock. The clock is based on the idea that electrons will flow from zinc to copper when the two metals are connected through an electrolyte — in this case, the potato. If you want to get technical, though, the potato isn t really powering anything. It s merely providing the means for electrons to flow from one metal to another. The power comes from the reaction between copper and zinc. 

Commercial production of food products is conducted in large-scale processing plants. As already mentioned, tomatoes are processed in plants continuously from June to late fall (autumn), 24 h per day, 7 days per week. This is also true of potatoes, wheat, soybeans, corn, and other large-scale commodity crops. Some crops, such as grapes, that might have a relatively short harvest season, may be processed around the clock to generate intermediate products, such as juice or young wine that can be stored for extended periods of time, whereas final products, which can be made from the intermediate products, may be produced over time as consumer demand requires. Final products may also be stored in their final retail or food service containers until demand requires distribution. 

Cesium is used as a getter in electron tubes. Other applications are in photoelectric cells ion propulsion systems heat transfer fluid in power generators and atomic clocks. The radioactive Cs-37 has prospective applications in sterilization of wheat, flour, and potatoes. 

The potato digging, which had been deferred until the last day of the full moon, was not completed Wednesday. Thursday morning a Ught rain fell beginning at 4 o clock. Mr. Monroe was greatly disturbed, because to put the potatoes in the potato house while they were wet was an inducement to rotting. Mr. Monroe and Ernest had received cotton tickets, notifying them that they could sell more of their cotton if they got the tickets. I carried them to Franklinton, where they waited in line for the tickets. 

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