In my last post, I told you about how scientists measure amazingly cool things that can be vastly different in size, like elementary particles or very distant dwarf planets and their moons. Thinking about all the units to describe length got me thinking again (uh oh)... How do scientists know that the nanometer they measure …
Continue reading "What’s in a Unit Anyway? Part 2: When is a Kilogram Not a Kilogram?"
Sustainable Nano 