is the dress blue and black or white and gold?

Question: is the dress blue and black or white and gold?
- Keywords:
  the dress
Asked by ellieyay to Angeline, Catherine, Luke, Philip, Shona on 9 Mar 2015.
- Angeline Burrell answered on 9 Mar 2015:
  
  I don’t know. When I looked at it on my friend’s iPad it changed with the screen’s angle.
- Shona Whittam answered on 9 Mar 2015:
  
  It looked white and gold to me.
- Philip Moriarty answered on 10 Mar 2015:
  
  I asked a class of about one hundred 1st year physicists what colour they though the dress was. Here’s the result: https://twitter.com/Moriarty2112/status/571315733877157888
  
  I’m a white-and-gold person.
  
  Because a large part of my job depends on image analysis and interpretation I am absolutely fascinated — and somewhat unnerved — by this dress issue!

Question: is the dress blue and black or white and gold?