The published materials include 84 manuscript pages containing mathematical derivations written between 1944 and 1948.
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In one of the letters, Albert Einstein admits that even after contemplating it for 50 years, he still cannot understand the quantum nature of light:
"Nowadays any fool thinks he knows the answer," he wrote, "but he deceives himself".
Unfortunately, some of the research notes and calculations lack context; however, others offer insights into the scientist's thinking.
"We at the Hebrew University are proud to serve as the eternal home for Albert Einstein's intellectual legacy, as was his wish," Hanoch Gutfreund, archives director and professor at the Hebrew University of Jerusalem, said in a news release, commenting on the newly-published documents.
Einstein is best known for his immense contributions to science, including discovering the photoelectric effect — best illustrated in the functioning of solar panels — for which he received the Nobel Prize in Physics in 1921.
