most of them is rather stupid, like #9. instead of looking for a scale, you look for bottle or tank, look for something to hang it, and look for something to tape it on the hanger, and waste time filling up the water... then you grab a calculator and do the conversion... very smart.
most of them is rather stupid, like #9. instead of looking for a scale, you look for bottle or tank, look for something to hang it, and look for something to tape it on the hanger, and waste time filling up the water... then you grab a calculator and do the conversion... very smart.
The metric system. Only two countries in the world don't use it.