Reference tools for hands-on work around the house and workshop — starting with how paint colours actually combine when you mix them for real, not how light does on a screen.
Mix real pigment colours the way a subtractive palette actually behaves — blue and yellow make green, not grey.
Paint a 3D room with your own mixed colours and watch the light bounce. Matt through gloss, six room shapes, and a choice of floor.
Room dimensions to litres and cost, with real coverage rates by paint type and surface porosity.
The right fixing for the wall and the weight, plus UK stud spacing standards and a screw gauge reference.
A blade grinder has no grind setting — it has a bar going round at 250 km/h, and the size you get depends entirely on how well the beans circulate past it. Watch them bounce, see where they hit the lid, and find out why a full chamber gives you boulders and dust in the same batch.
Pick the shade you want and get the exact brew time — real extraction kinetics, teabag vs. loose leaf, any mug size.
Real heat-transfer physics for boiling, poaching, frying and scrambling any egg — all sizes, bird types and doneness levels, with a working countdown timer.
Cooking times solved from real heat conduction — set by thickness, not weight — with a live timer that says when to flip, when to pull and how long to rest.
Drift-corrected stopwatch with real lap statistics, a multi-timer, interval trainer, precision metronome, and reaction-time tester.