CERN Tweetup

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What will happen at the CERN Tweetup?

CERN is organizing a tweetup on Friday 27 September 2013, the eve of the CERN Open Days. A handful of @CERN Twitter followers will get the chance to come for an unforgettable day. You could be one of the lucky few to:

  • See a behind-the-scenes preview of CERN, the European Laboratory for Particle Physics, before it opens its doors to the public on Saturday 28 and Sunday 29 September.
  • Take part in an exclusive tweetup visit of the Large Hadron Collider tunnel, 100 metres underground.
  • Enjoy lunch with CERN physicists in the laboratory’s restaurant.
  • Tweet from where the World Wide Web was born.
  • Talk face-to-face with the researchers exploring the properties of the Higgs boson, as part of the European Researchers’ Night activities.
  • Be part of the audience of the Origins2013 show in CERN’s impressive Globe of Science and Innovation.

An opportunity not to be missed!

How do I register?

To register you must complete the online registration form below. Registration opens at 12.00 CEST on Thursday 29 August and closes at 23.59 CEST on Sunday 8 September 2013. CERN will select participants from those who sign up using the web form. Successful applicants will be informed by 18:00 CEST on Thursday 12 September. Unsuccessful applicants will not be contacted. Only one application per person will be accepted.

Do I need to have a Twitter account to apply?

Yes. This CERN Tweetup is designed for social media users who follow @CERN on Twitter.

What are CERN Tweetup registration requirements?

Applicants must be 18 or over. By registering for CERN Tweetup, you indicate that you intend to travel to CERN, Geneva for the day of Friday 27 September 2013 and attend the event in person. You are responsible for your own expenses and logistics for travel, accommodation, and other costs, however lunch on the day will be provided. CERN is not responsible for loss or damage incurred as a result of attending this event, or if the event is cancelled with limited or no notice. You will need to bring a passport or equivalent with you that matches the information provided on the application form, both to identify yourself and because you may cross the border of Switzerland and France during the event. Photos will be taken at this event and registering for this CERN Tweetup implies consent to appear in any photos used by CERN or any other third parties.

Which nationalities are able to apply?

Any nationality can apply. Please be aware that this tweetup will be in English. We remind you that you are responsible for all costs including travel and accommodation.

Can I bring a guest?

No, each place is for one person only (you) and is non-transferable. Each individual wishing to attend must register separately.

What if I cannot come to the event?

If you are unable to get to Geneva for Friday 27 September, you should not register for this CERN Tweetup. You can instead follow the conversation on the #CERNtweetup hashtag on Twitter.

Does registration for and/or attendance at the CERN Tweetup qualify me for media accreditation?

No, registration and/or attendance does not qualify you for news media credentials at any CERN event, now or in the future.

Can I stay for the CERN Open Days?

You are welcome to stay and enjoy the CERN Open Days on Saturday 28 and Sunday 29 September as a member of the public. There will be no specific tweetup activities planned for Saturday and Sunday. Please note that by attending the tweetup you do not automatically get an underground visit ticket during the Open Days, the tweetup just provides an LHC tunnel visit on the Friday. Open Day underground tickets need to be reserved by yourself in advance via Find out more about the activities on offer above and below ground via:

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