Electronics, programming and retro computing, explained properly.
A free logic gate puzzle game with 153 levels: flick the switches to light the lamp, starting with one wire and working up through NOT, AND, OR, NAND, NOR and XOR gates to number displays, adders and memory, then 50 levels from hard to extreme.
Type your number plate: the calculator reads your yearly mileage from your car's MOT history and shows what an electric car would cost you, at home or public chargers, with the 3p-a-mile charge from April 2028. It also shows how long one charge takes and what it costs.
Check any car's MOT history by number plate, with each advisory explained in plain English, the mileage readings checked, repeated faults picked out, and questions to ask a seller.
Type how much you charge at rapid chargers each month and see whether an IONITY, Tesla, bp pulse, GRIDSERVE, Shell, Fastned or Be.EV subscription would save you money, with each network's prices checked in October 2026.
LEGO's UK Black Friday dates, what is confirmed so far, last year's offers, how to tell a real discount, and the big sets retiring at the end of 2026.
All five LEGO advent calendars for 2026 with UK prices, the cost per day and what is inside, plus Santa's Holiday Countdown and where they cost less.
Ten free Christmas 3D prints for 2026, from vase-mode baubles to a nativity kit card and a toy workshop, with print tips and what makers report.
Type the code printed on a capacitor, such as 104, 473J or 2A104J, and get the value in pF, nF and µF with the tolerance and voltage. Works both ways.
Every Super Nintendo game released in the UK, Europe and Australia, with PAL release years, publishers, product codes and a checklist for collectors.
Can AI help make a Commodore 64 game worth playing? How I built Van Helsing: A Night at Castle Dracula with Claude, automated tests, test players and play-testing.
