But QED was a controversial theory until, in 1947, after attending the Shelter Island Conference, Hans was able to successfully show that QED (particularly as descended from Dirac 's theory of the electron) could, in fact, make accurate predictions of electron transitions in real hydrogen atoms.
Ngunit QED ay isang pinagtatalunan teorya hanggang, sa 1947, matapos dumalo sa Shelter Island Conference, Hans ay able sa matagumpay na ipakita na QED (lalo na bilang descended mula sa Dirac 's theory ng elektron) ay, sa katunayan, gumawa ng tumpak na mga paghuhula ng elektron transisyon sa real haydrodyen atom.