Experiment: How to light a bulb with a potato

The best thing about potatoes is that you can do almost everything with them. Make fries, have them mashed, put them in chicken curry and power light-bulbs. That's right; potatoes can actually be used to illuminate a room. Granted it takes a little bit of preparation and accessories, but the result is definitely worth it!
To begin with the potato experiment, the basic apparatus required is 1 big potato, 2 Taka 5 coins, 2 zinc plates (or zinc covered nails work too), strands of copper wire and a tiny LED light. Most of these are available and a little digging around shouldn't hurt.
Potatoes are available at local markets; they shouldn't be hard to find. As for the coins, they should be easily available. The metal elements necessary can be found at Anondobazaar in Old Dhaka and the LED light bulb, at New Market. The equipment can be purchased at a very reasonable price, more reason for you to try this out at home. Begin by cutting your potato in the middle. In your two halves, carve sufficient space to fit the coins in. no ruler necessary, as a good idea of the shapes and spacing assumed will be enough.
Next, wrap the coins with the strands of copper wire. Make sure to use separate strands for each of the coin. Moving on -- insert the coins into the potato slits carved before. Now admire your efforts for a bit (go, narcissism). Next, enfold a single zinc plate/nail with some more copper strands and stick the plate into a potato half. Continue by taking another zinc plate wrapped in copper and placing it in the other half. Now that the plates have been positioned, choose a loose end from one of the plates and wrap it around the coin's loose end in the other half of the potato.  
When the remaining loose ends from the coin and zinc plate correspondingly are tied to the LED bulb, it lights up. YES. Success. Now that you're done with this science experiment thing, you can tick this off the 'Things To Try With Potatoes' (doesn't everybody have one?) list and rub it on everyone else's face. From using potatoes as batteries to proving blue to be the kindest colour, science is pretty cool. Hence, grasshopper, proceed and give this test a try!
If you are a science enthusiast, send us a write-up of your experiment under 400 words to [email protected]