When science is discussing weight, or you are, accuracy is very important. When the Butcher weighs that expensive roast, you want his measurement to be accurate and not off by a lot. Actually errors you want to be in your favor. Weight is important. Take the Saturn Rocket, it weighed at launch various weights depending on where it had to go, with a load on the Rocket, including fuel and humans, but other loads. Men's lives were at stake. So how can the weight of super heavy objects be done? This explains how. I expect some scientific interest is on this forum. What is the heaviest weight you weighed and how accurate was it?
We need much more accurate weighing systems for use in daily life. The current ones are just too unreliable. For example according to my wife every set of bathroom scales we've ever owned has been inaccurate.
Yep, the best answer I've ever heard to the dreaded 'Do I look fat in this?' question was from a colleague at work. His reply (from outside the door) was 'Yes, but its a small bathroom!'
The bathroom scale I use calibrates each time it is used. It also transmits to my cell phone my weight and my history of my weight along with a lot more data. Best of all it cost me about $30 when I bought mine. I show the results to my doctor when going to see him.
I saw a Russell Crowe movie this past week called Unhinged. Crowe is a tub of lard. I have never seen him so fat and out of shape.