A blog about maths things which interest me.
oh this is interesting device...but how does that work! plz explainfarm fence
It's a sundial - as the sun moves across the sky (or as the earth rotates on its axis around the stationary sun) the shadow of the gnomon moves across the dial and the markers indicate the time.
Oh I see..what an invention!Also, I have learnt that, Ancient sundials first popped up in Egypt around some 1500 B.CThanks for sharing this antique!farm fence