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Why 'how fast are you moving?' is a complicated question

7 February 2014 Last updated at 11:38 GMT

How fast are you moving right now? The answer is "pretty fast actually" as explained in this week's video of the week courtesy of the Ed.Ted YouTube channel.

In her review of websites and apps, Click's Kate Russell looks at the TED's educational YouTube channel, Winter Olympics coverage and Google's partnership with Lego to create a virtual playground.

This is an extract from Click's Webscape. Watch Webscape in full complete with web links

Watch more clips on the Click website. If you are in the UK you can watch the whole programme on BBC iPlayer.

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