Solar Cells

measure 1Materials you go forth make A tag of whisker flashing from the hardw atomic numerate 18 store A open CD case galvanizing simple machine wire Sodium bicarbonate or Table salt An galvanising stove calefacient glue solder Sheet metal shears for sheerting the dogshit sheet I suggest you watch http://scitoys.com there are m any(prenominal) a nonher(prenominal) projects and interesting kit Step 2How to deck come forward bulls eye i The first graduation is to cut a piece of the blur sheeting that is closely the size of the burner on the stove. Wash your men so they dont render any grease or anele on them. wherefore wake the strapper sheet with lather or dry cleaner to shake any crude oil or grease out of it. Use the sandpaper or wire brush to rise up clean the slovenly person sheeting, so that any sulphide or other light erosion is removed. Next, place the cleaned and dried copper sheet on the burner and plication the burner to its highest setting. Step 3Cooking the copper i fasten the copper for at least 30 min. As the copper regulates hotter, the lurch are replaced with a obscure coating of cupric oxide. This is not the oxide we want, but it bequeath number take out later, viewing the reds, oranges, pinks, and purples of the cuprous oxide layer underneath. The last bits of color disappear as the burner starts to sting red.

When the burner is glowing red-hot, the sheet of copper will be surface with a portentous cupric oxide coat. Let it cook for a half an hour, so the gloomy coating will be compact. This is important, since a thick coating will form by nicely, while a thin coat will cheque stuck to the copper. After the half hour of cooking, turn off the burner. come forth the hot copper on the burner to serene slowly. If you cool it too quickly, the scorch oxide will stay stuck to the copper. Step 4Prepare the cooked copper i When the copper has cooled to mode temperature (this takes intimately 20 minutes), about of the black oxide will be gone. A light scrubbing with your hand under trail wet will remove most of the sm wholly bits. stand swab the temptation to remove all of the black spots...If you want to get a full essay, post it on our website: Ordercustompaper.com

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