Only the tip with the temperature sensor needs to be inserted, which is about 1cm on most thermometers. Most health care professionals no longer recommend using the rectum for taking a temperature....
On a wall that faces north, which is largely in the shade. An outdoor thermometer placed anywhere that sunlight can fall directly on it will be wildly inaccurate.
Hi there a meat thermometer should be inserted very central .Being central will mean it will be show the temperature inside the food so you would know if it was cooking ok in there or not. be ssur to...