Abstract: A method of peeling tubers includes providing a peeler device defining a cavity surrounded by a peeling mechanism, inputting tubers to be peeled into the cavity, directing electromagnetic radiation from an illumination device into the cavity,-detecting electromagnetic radiation reflected into lens of a camera from tubers located in the cavity during a peeling operation by the peeling mechanism, and operating the peeler device based on the reflected electromagnetic radiation detected by the camera. Also disclosed is an apparatus for carrying out the method.

Abstract: A burner includes: a body defining an interior cavity; a burning surface located in the body and defining, at least in part, the interior cavity; a defusing surface located on an exterior portion of the body; ports on the body extending through the defusing and burning surfaces and configured to provide fluid communication between the interior cavity and ambient air outside the body; and an opening larger than at least one of the ports, the opening providing fluid communication between the interior cavity and a space outside of the body. A method of burning a gas and reducing acoustic feedback in a combustion device are also described.