joeweller Posted June 10, 2016 Share Posted June 10, 2016 hello, so I want to know if this version still accurate since it was made in 1970? and can you tell me why. thank you Link to comment Share on other sites More sharing options...
Strange Posted June 10, 2016 Share Posted June 10, 2016 Looks about right (without measuring everyone and checking). Note that this is abundance on on Earth. (Not in the solar system, the galaxy or the universe as a whole.) and can you tell me why. Why what? Link to comment Share on other sites More sharing options...
imatfaal Posted June 10, 2016 Share Posted June 10, 2016 I think in its own terms it is unlikely to be wrong. But I would prefer it if it were more specific - it clearly is not abundance on astronomical scales where H is about 70% by mass and 90% by atom count, nor the earth itself which is about 30%iron and 30% oxygen by mass. Link to comment Share on other sites More sharing options...
John Cuthber Posted June 10, 2016 Share Posted June 10, 2016 It's an interesting approximation, but, for example there is nothing like as much Pa as U or Th. Po and At are also vastly over-represented. What I find interesting is that they did this in 1970. The idea of using distorted maps has come into vogue recently because it's easy to get a computer to do it for you. Things like this http://www.worldmapper.org/animations/internet_users_animation.html it must have been very hard work doing it by hand all those years ago. Link to comment Share on other sites More sharing options...
Enthalpy Posted June 13, 2016 Share Posted June 13, 2016 It can't be Earth's composition neither. But maybe Eart's crust, or the top of the crust, plus the atmosphere, the Ocean and all the carbonates in the soil. What does the text say? Link to comment Share on other sites More sharing options...
imatfaal Posted June 13, 2016 Share Posted June 13, 2016 http://www.eoht.info/page/William+Sheehan "each square based on the element's relative abundance on the Earth's surface" https://magazine.scu.edu/summer2008/memoriam.cfm Link to comment Share on other sites More sharing options...
Recommended Posts
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 accountSign in
Already have an account? Sign in here.
Sign In Now