The Little Book of Irish Science SFI Little Book of Irish Science | Page 49

X 3 + 2x 2 = x 2 ( 44 1843 Dublin native, Sir William Rowan Hamilton’s ‘quaternions’, herald the birth of modern algebra and are also used in space fl ight navigation equations. 45 1848 Also born in Dublin, Margaret Lindsay Huggins along with her husband William Huggins were the fi rst to apply the dry gelatine photographic plate to astronomical spectroscopy, an important tool in modern observation astronomy.