????(仰釜日晷, angbuilgu) - Korean traditional sundial

Parts to be printed: x 1 x 4 x 1 yungchim_nut.stl x 1 x 1 x 2 “仰釜一丘”的意思是“鐵鍋模樣的日晷”，因?yàn)橛白诱丈涞拿媸前枷莸蔫F鍋模樣而得名。利用這個(gè)可以知道一天的時(shí)間和節(jié)氣。 The name "angbuilgu" mea "a cauldron-shaped sundial looking at the sun," given because the shaded side is shaped like a concave cauldron. This let knows the time and the time. 因?yàn)槭前枷莸陌肭蛐?，所以可以更?zhǔn)確地顯示影子。因?yàn)橛泄?jié)氣線，不僅可以知道時(shí)間，還可以知道節(jié)氣（日期）。特別是節(jié)氣線的間隔不固定，這表明地球繞太陽(yáng)旋轉(zhuǎn)橢圓，運(yùn)動(dòng)速度不固定。 Because it is a concave hemispherical shape, it can more accurately represent shadows. There is a solar term line so you can know not only the time but also the date. In particular, the spacing of the solar term line is not cotant. It's indicating that the speed of motion is not cotant because the Earth orbits the sun to an ellipse.