basic astronomical point

al-hasan ibn al-haythams barium discharger Bent Spear boiling-curve hysteresis Bol'shaya Berestovitsa Bourg-lès-Valence common squirrel monkey delayed transmission drivelled Egan gang-slitter Heptodin ledgiest moving centrode primordialist quinti- rubber seeds Russian bars shingle trap standard overhead rate code