The Road Map
The original winter plan — read just enough, then go and do it. From your first constellation to weighing Jupiter.
Learning paths
Guided routes through the library. Each path pairs reading with hands-on projects, one stage at a time. Jump in anywhere — your progress follows you from My notebook.
Quantum from your kitchen
Measure the speed of light and Planck's constant — two of nature's fundamental numbers — with a microwave, a laser pointer and some LEDs.
Measuring the Solar System
From a stick's shadow to the mass of Jupiter — measure the Earth, the Sun and a giant planet yourself, following the seasons.