Jump to content
Sign in to follow this  
  • entries
    14
  • comments
    2
  • views
    265

Rounder Than Round

Sign in to follow this  
NisaVyv

56 views

Does everyone remember that day in science class when they told you the Earth was round, and you were like, "Yeah, no duh." And then a couple of years later they told you the Earth was also incredibly smooth, and you kinda just went with it. And then they said if you held an orange and a billiard ball in your hand, and then you could also hold the Earth, that it would feel more like the billiard ball than it would the orange? And that's when you got real confused. What about all the super tall mountains and super deep valleys and the trenches and the oceans? It made sense eventually though that these features were rather small compared to the whole mass of the planet. So now the Earth is one of the smoothest things you can think of. But there actually is one thing on Earth that is the most roundest, smoothest thing to exist on our planet: a ball of silicon. This sphere is officially the roundest thing humans have created; if it were Earth, the distance between its highest and lowest point would be 14 meters.

The reason it was created is pretty cool too. The sphere is an attempt to create a substitute fir the current definition of the kilogram, as this measurement is currently dependent on a physical object called "The Big K" that is locked away in some basement in France. The problem is that there is no way to keep this object from being warped over time, and the definition of a kilogram therefore changed. The creators of the silicon sphere hope to use the amount of atoms in that sphere as a new constant that would replace the kilogram.

 

Sign in to follow this  


0 Comments


Recommended Comments

There are no comments to display.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Terms of Use

The pages of APlusPhysics.com, Physics in Action podcasts, and other online media at this site are made available as a service to physics students, instructors, and others. Their use is encouraged and is free of charge. Teachers who wish to use materials either in a classroom demonstration format or as part of an interactive activity/lesson are granted permission (and encouraged) to do so. Linking to information on this site is allowed and encouraged, but content from APlusPhysics may not be made available elsewhere on the Internet without the author's written permission.

Copyright Notice

APlusPhysics.com, Silly Beagle Productions and Physics In Action materials are copyright protected and the author restricts their use to online usage through a live internet connection. Any downloading of files to other storage devices (hard drives, web servers, school servers, CDs, etc.) with the exception of Physics In Action podcast episodes is prohibited. The use of images, text and animations in other projects (including non-profit endeavors) is also prohibited. Requests for permission to use such material on other projects may be submitted in writing to info@aplusphysics.com. Licensing of the content of APlusPhysics.com for other uses may be considered in the future.

×