Measuring Air Temperature with Your Eyes or How Most Businesses Operate

If somebody ask you to measure the temperature of the air using only your eyes, you would call this person crazy, right? You can't detect how fast or slow molecules are moving. It's a metric. We know the temperature - we can react accordingly. -20C (-4F) is different from -20C (14F) and you can even use a different coat or something. Now, ask an entrepreneur about systems. Probably, most of them will ...