Tech whizz Steve Caplin looks at the apps Zoom has added to its package but is a little worried about data implications. He discusses several advances in battery technology, with rust powering one new process. There's a new electric bike with an illegal top speed, Ordnance Survey's first game to encourage people to get out, the bullying of children called Alexa and some of the funniest tongue-in-cheek reviews on Amazon, including for uranium ore.