Stuff that occurs to me

All of my 'how to' posts are tagged here. The most popular posts are about blocking and private accounts on Twitter, also the science communication jobs list. None of the science or medical information I might post to this blog should be taken as medical advice (I'm not medically trained).

Think of this blog as a sort of nursery for my half-baked ideas hence 'stuff that occurs to me'.

Contact: @JoBrodie Email: jo DOT brodie AT gmail DOT com

Science in London: The 2018/19 scientific society talks in London blog post

Thursday, 31 December 2009

iPhone screenshot or taking a 'photo' of your iPhone screen

I discovered how to do this quite by accident, after playing with all the five buttons on my iPhone and trying them in different permutations.

How to take a screenshot with your iPhone
Press the 'sleep' button and the 'home' button simultaneously (see first photo below) - the screen will 'blink' as if taking a photo (if you have the ringer button set to on it will make a camera sound).

The photo is now in your Camera roll.

See demo photos (second and third photos) at the end of this post.

Why would you want to do this?
I use this A LOT when I'm going to be travelling somewhere and can't guarantee I'll have a good wifi or 3G signal, and I might need to have a local map with me. So I check the map via my home wifi and screenshot it for use later. Clearly I also use this function for demonstration purposes too ;)

Further info
The relevant buttons are marked on this photo which I pinched from Wikimedia then tweaked.

Photo credit: Flickr user lecates (, taken from Wikimedia (

Screenshot of iPhone map showing London Zoo

Close up - keeping this sort of thing in my Camera Roll means I'm less likely to get lost even if there's no signal.


  1. I say 'less likely' but I should admit my propensity for getting lost and comedic lack of spatial / 3D competence. This is an example of me turning my iPhone into a kind of assistive technology ;)

  2. Fantastic! I never knew that...

  3. I've also used it to photomessage Email settings
    information to a friend so they knew how to set up their email - far easier than typing the stuff out in a fresh text.


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