Weight Variation by Latitude

Weight Variation by Latitude refers to the claims that scales have measured masses differently at different points on earth. It is said that due to a combination of the centrifugal effect and the further distance from the center of mass, bodies weigh less at the equator than the poles.

Upon assessment of the experiments supporting this, it is found that these experiments are always conducted with the scale and body exposed to the surrounding atmosphere. A scale is calibrated for one area and then taken to another area, uncalibrated. Measures are not taken to isolate the test body and the measuring device from the influences of the environmental atmosphere. It is known that pressure and humidity affects scales. It is also known that that pressure is greater at the poles and lesser at the equator. It is further known that pressure is greater at lower altitudes near sea level and lesser at higher altitudes—the same general relationship the weight changes are said to change. Humidity likewise has a relationship with between altitudes and latitudes.