The conversation between human and AI assistant.
[|Human|] Based on the following passage, what did Albert Einstein publish in 1905?
[|AI|] In 1905, Albert Einstein published a paper that explained experimental data from the photoelectric effect as being the result of light energy being carried in discrete quantized packets, energising electrons. This discovery led to the quantum revolution. Einstein was awarded the Nobel Prize in Physics in 1921 for "his discovery of the law of the photoelectric effect".
[|Human|] 
Based on the following passage, what did Albert Einstein publish in 1905?