Use of wrong units in science

The use of wrong units in science can be deadly. An example is the Gimli Glider. It suddenly went out of fuel at 12500m of altitude.Luckily the pilots were skilled and the Glider landed safely. Further investigations have shown that what caused that incident was just a small human error. One part of th team used the new metric system to calculate the amount of fuel given to the Glider while the other used the old imperial system. Such a big mistake was caused by a smal human error--use of different units. Every unit is different,one m cube is equal to 1000000 cm cube. So if you should a plane with 1000m cube of fuel but you calculate it as 1000cm cube, it would have 1000000 times lesser fuel. There are many unit systems in the world, like the imperial units system. However, now the world has adopted a new system widely used, the metric system which has the SI units. M is standard for metres and K is standard for kelvin. Around the world, these units have been used as a base. Imagine one day when you buy your bag of rice it does not say 10kg, but 10 pounds, and you not having heard of pounds before thought it was normal, but you see that the rice bag is smaller and the price is the same. If you only recognise 10, you have been cheated almost half of the bag of rice. However, you will not have any idea what is going on and if you buy the rice twice a month, you will be cheated $5 each time you buy, which is $10 a month and $120 a year. Thus, I conclude that the new units system is to not allow confusion to be made in calculations so that no more such accidents like the Gimli Glider shall occur.