Gnomon: Sun & Shadow

Where will the sun be at four o'clock on a Tuesday in March? Which way will the shadows fall, and how long? When does the golden hour actually start where you're standing? Gnomon answers all three, for any place and any date, on a dial you can read at a glance. THE DIAL You stand at the centre. The rim is the horizon, the middle is straight up, and the sun's path for the day is drawn as an arc across it. A shadow ray shows which way shadows fall and how far. Scrub the timeline to watch the whole day move. The June and December tracks are drawn faintly behind the day’s own, so you can see at a glance how far the sun moves across the year, and where today sits between them. THE NUMBERS Bearing, elevation and shadow length, updating as you scrub. Blue hour, golden hour, sunrise, solar noon, sunset — tap any of them to jump straight there. Daylight length, the sun's height at noon, and the…