by Andrew Northwick Happy Nano Day, Everyone! Though you might be looking at me weird if you use the dd/mm dating system, tomorrow (10/9 in the U.S.) is the day to celebrate the scale that’s …
measurements
What’s in a Unit Anyway? Part 2: When is a Kilogram Not a Kilogram?
by Mike Schwartz 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. …
What’s in a Unit Anyway? Part 1: From Protons to Galaxies
by Mike Schwartz If you’re like me, you often find yourself thinking about random things. For example, just the other day I was thinking to myself, “what’s the diameter of a gold nanoparticle* in light …
How to search for a needle in a haystack: Spotting really tiny signals from the edge of the universe
by Catherine Alvarez edited by Mimi Hang As a chemistry graduate student I don’t normally take classes outside of the chemistry building, but this semester I happened to have an optics course in the physics …