Skip to main content

Reset your password

Please enter the e-mail address you used to register to reset your password

Note: The verification e-mail to change your password should arrive immediately. However, in some cases it takes longer. Don't forget to check your spam folder.

If you haven't received the e-mail in 24 hours, please contact customerservices@ioppublishing.org

Registration complete

Thank you for registering with Physics World
If you'd like to change your details at any time, please visit My account

Close
Constants and units

Constants and units

World Metrology Day: Celebrating an underappreciated science

21 May 2018 Anna Demming
The National Physical Laboratory, Teddington UK
5000 visitors flocked to the UK's National Physical Laboratory Open House in the run up to World Metrology Day
In an ever-changing world the few constants we can rely on become ever more important. The distance

You’ve reached the limit of what you can view on Physics World without registering

If you already have an account on Physics World, then please sign in to continue reading

If you do not yet have an account, please register so you can

  • Access more than 20 years of online content
  • Choose which e-mail newsletters you would like to receive
Anna Demming is a science journalist based in Bristol, UK
Read previous

Light up your life
Read next

Integrated platform supports advances in radiation therapy workflow

Discover more from Physics World

Related jobs

Related events

Copyright © 2024 by IOP Publishing Ltd and individual contributors