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Thermal conductivity (k) 5300 W⋅m −1 ⋅K −1. Graphene ( / ˈɡræfiːn / [ 1]) is a type of allotrope of carbon consisting of a single layer of atoms arranged in a honeycomb [ 2][ 3] nanostructure. [ 4] The name is derived from "graphite" and the suffix -ene, reflecting the fact that the graphite allotrope of carbon contains numerous ...
Established. 2015. Website. sdgs .un .org. The 2030 Agenda for Sustainable Development, adopted by all United Nations members in 2015, created 17 world Sustainable Development Goals ( SDGs ). They were created with the aim of " peace and prosperity for people and the planet..." [ 1][ 2][ 3] – while tackling climate change and working to ...
Download the file enwiki-YYYYMMDD-pages-articles.xml.bz2 from the most recent dump. For example, on your.org , go to directory YYYYMMDD for the most recent date (for example 20171020 ), and retrieve the requested file (for example enwiki- 20171020 -pages-articles.xml.bz2 ).
A 2023 map of countries by fertility rate. Blue indicates negative fertility rates. Red indicates positive rates. This is a list of all sovereign states and dependencies by total fertility rate (TFR): the expected number of children born per woman in her child-bearing years.