A hypothetical experiment in which a cat kept in a closed box can be alive and dead at the same time – as long as nobody lifts the lid to take a look.

Here are the results of the Quantum Shorts mini-competitions! Congratulations to our three winners who each get a year’s digital subscription to scientificamerican.com and a copy of *HAWKING*, a documentary telling Stephen Hawking’s life story largely in his own words. HAWKING's Executive Producer, Ben Bowie, is one of our film competition judges.

The mini-comps are over for the season, but there's still time to enter our main competition for quantum-inspired short films. Send us your three-minute movie by 23:59 EST on Sunday 1 Feburary for a chance to win cash prizes and more.

### You know there's a quantum twist in your life when...

Our third mini-competition on Twitter asked for people to complete the sentence "You know there's a quantum twist in your life when...." Here's a collection of the entries we enjoyed the most. This is just a selection of the quantum inventiveness tweeted at us with the hashtag #quantumshorts.

### Making resolutions

With 2015 coming over the horizon, we thought it would be fun to see your New Year's resolutions on Twitter, but with that quantum twist we always love. Entries to the mini-competition were tagged #quantumshorts.

### A mini-competition for movie titles

Our first mini-competition on Twitter asked for a quantum twist on a film title. Entrants had to tweet their quantum movie using the hashtag #quantumshorts by 23:59 EST on Sunday 30 November. We've made a collection of our favourites.