emissivity, pyrometer, kiln, rendezvous, parhelion, halo

emissivity: 방사율, 복사율

the relative power of a surface to emit heat by radiation :  the ratio of the radiant energy emitted by a surface to that emitted by a blackbody at the same temperature

pyrometer: 고온계

an instrument for measuring temperatures especially when beyond the range of mercurial thermometers

kiln: (벽돌 등을 굽는) 가마. 

an oven or furnace that is used for hardening, burning, or drying something (such as pottery)

rendezvous: 정해진 시간과 장소에 만나는 것(비밀스러운 회동)

: a meeting with someone that is arranged for a particular time and place and that is often secret

: a place where people agree to meet at a particular time

: a place where many people go to spend time

parhelion(pl parhelia) 

any of several bright spots often tinged with color that often appear on the parhelic circle —called also sun dog

parhelic circle:

a luminous circle or halo parallel to the horizon at the altitude of the sun —called also parhelic ring

halo

: a circle of light that is shown in a religious painting, drawing, etc., around the head of a holy figure (such as an angel, saint, or god)

: a bright circle seen around the sun or the moon