L'uovo è fecondato? Le uova comprate in un negozio di alimentari non lo sono, e non possono essere covate in nessun caso.

Un uovo ferile può essere covato in questo modo, ma le uova devono essere tenute a 98 gradi, e ruotate ogni giorno come minimo, ogni 8 ore è meglio

I have heard of eggs being incubated under an 80-watt bulb. It’s unconventional, but apparently doable. My main concerns are:

1. The temperature needs to be 99–102 degrees F. You’ll need to watch out, the lack of air flow will make it easy to overheat the egg.
2. The humidity level should be around 60%. I’m not sure how you’ll work this out.
3. And it is very important to turn the egg 3–5 times per day, but not in the last few days. Not turning the egg can cause death or deformity.

It sounds hard…In practice, it doesn’t actually seem that complicated to me, but then I’ve never done it myself, lol. My hens do the work.

If you plan on hatching a lot of chicks, you might want to invest in an incubator. Here’s a good example: Egg Incubator

I also strongly recommend this site: Hatching Eggs & Raising Chickens. You can read the articles, and if you make a free account, you can ask about this on their forum. You’ll likely get a better response than you will here.

Good luck!