. ▁He ▁is ▁usually ▁dep icted ▁as ▁a ▁white ▁male . ▁ ▁Category : V ood oo ▁gods ▁Category : Se a ▁and ▁river ▁gods ▁Category : A fr ican ▁myth ology <0x0A> </s> ▁Kn ut ▁Johan ▁Å ng ström ▁( 1 2 ▁January ▁ 1 8 5 7 4 ▁March ▁ 1 9 1 0 ) ▁was ▁a ▁Swedish ▁phys ic ist . ▁He ▁was ▁the ▁son ▁of ▁phys ic ist ▁Anders ▁Jon as ▁Å ng ström ▁and ▁studied ▁in ▁U pp s ala ▁from ▁ 1 8 7 7 ▁to ▁ 1 8 8 4 , ▁when ▁he ▁received ▁his ▁lic ent iat - deg ree , ▁before ▁going ▁for ▁a ▁short ▁time ▁to ▁the ▁University ▁of ▁Str ass burg ▁( Str as bourg ) ▁to ▁study ▁with ▁August ▁K und t . ▁Com ing ▁back ▁to ▁U pp s ala , ▁he ▁completed ▁his ▁doctor al ▁degree ▁and ▁was ▁appointed ▁lect urer ▁in ▁physics ▁at ▁the ▁new ▁university ▁college ▁in ▁Stockholm ▁( now ▁Stockholm ▁University ) ▁in ▁ 1 8 8 5 . ▁After ▁a ▁few ▁years ▁working ▁there , ▁he ▁returned ▁to ▁U pp s ala ▁in ▁ 1 8 9 1 ▁and ▁received ▁the ▁professor ship ▁of ▁Physics ▁in ▁ 1 8 9 6 . ▁ ▁He ▁focused ▁his ▁research ▁work ▁on ▁investig ating ▁the ▁radiation ▁of ▁heat ▁from ▁the ▁sun , ▁terrest rial ▁no ct urn al ▁emission ▁and ▁its ▁absor ption ▁by ▁the ▁Earth ' s ▁atmosphere , ▁and ▁to ▁that ▁end ▁de vised ▁various ▁del