1 kg

One kilogram - 1kg is a standard mass which is used as a reference to weigh any objects in the surroundings. If you asked people how much actually 1kg weighed, they will give you the weighing balance and ask you to measure 1kg of newspapers and carry them. LOL! So dumb. ^^

 

Btw, is it a weighing balance or a clock? Well, it doesn't matter @@

In fact, we actually refer to a reference of how heavy 1 kg is. It is an IPK - International Prototype Kilogram, which is made of platinum-iridium composite material. One might ask if the metal is heavy, well, if you hold the mass of 1kg of platinum-iridium, it is not heavy, but if you support 1 tonne of platinum-iridium, it is definitely heavy! >< I am talking craps again.

Well, the size of 1kg of platinum iridium is as shown below:

This thing is wonderful, but eventually, something will happen which relates to Planck constant and makes this metal shown above no longer 1kg, perhaps, 0.99999999999999999999999999999999999999999999 kg. LOL! Hence, they need to redefine the mass of 1kg by, maybe, doing another metal. This is what metalogists are employed for, and they always hold a strong concept - "Always make life complicated by doing things which people feel it is not significant." ^^

Okay, I am not going to crap away all the 1kg thing here but if you really need to know what is happening recently on this 1kg, do refer to the link of the title. =)