Looks interesting: but one has to sign over ones contact list to access the PDF :-(https://twitter.com/caitlinrgreen/status/684114428242051072 …
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@Bob_MatPhys Really? I haven't mine... Sign up with email address, not FB etc account?
@caitlinrgreen Thanks, I have managed to do it now - trying via Chrome as a browser automatically assumes one will use Google's routes :-(
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