All posts filed under “Black box

Friend or foe: Battery-authentication ICs?

Friend or foe: Battery-authentication ICs?

Via MAKE, an article from Electrical Design News looking at lithium battery authentication chips in products such as phones and laptops, designed to prevent users fitting ‘non-genuine’ batteries. Now, the immediate response of most of us is probably “razor blade model!” or even “stifling democratic […]

Ticket off

Ticket off

Henry e-mails: “Perhaps this is too obvious: parking meters; and I mean modern digital ones, enforce arbitrary limits on how much you can pay for at a time (4 hours). Is this to share the enjoyment of democratic parking (at a dollar an hour), or […]