Steve Caplin says that the massive Amazon outage was caused by nothing more than an empty data record. Google has been providing misleading information on pensions and driving licences. There's a clever AI military helmet. Customers of Starling Bank have a new way of avoiding scams. A device attached to your lavatory can monitor your gut health. A German company is offering to 3D-print personalised bike saddles, if you can translate its website. Scientists have found that the most expensive TV screens are pointless. And battery-grade lithium is now being mined in Cornwall.

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