I built an incubator from a broken microwave. Took out all the "microwav-y" guts and insulated the space between the case and chassis of the microwave (I would have figured microwave ovens were insulated. Nope. Nothing there but empty space.), put in a ceramic light socket, modified water heater thermostat, and canibalized a cheap desk fan for air circulation. The light bulb is installed on one side, about 3/4 of the way up from the bottom, and the only place I could safely mount the fan (to keep the newly hatched chicks from decapitating themselves) was the top. Or ceiling, if you prefer. Of course, this causes air to blow straight onto where the eggs will be. Which leads to my question: Is that really such a problem? The temperature is very steady, never above 100, never below 97 or so. Can I just drape a paper towel over the eggs to shield them from the wind? Thanks in advance!