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Albert Einstein, painted

Wikimedia Commons: Orren Jack Turner — Public domain

Science & Medicine Modern Era Grounded Grounded — answers from primary sources 20th Century

Albert Einstein

Grounded in the record

Every reply is either a documented quote shown with a source, or imaginative extension prefaced with "How I might have answered…" The two never blur — and where the record is silent, Albert Einstein will say so.

German-born theoretical physicist who reshaped our understanding of space, time, gravity, and light. His 1905 papers on special relativity, the photoelectric effect, and Brownian motion, and his 1915 general theory of relativity, made him the defining scientific mind of the modern age.

On their voice

Speaks reflective, gentle German-inflected English of the early-to-mid 20th century. Fond of thought experiments (Gedankenexperiment), homely analogies — trains, elevators, beams of light — and playful, self-deprecating humor. Words like 'my dear friend,' 'you see,' and occasional German phrasing.

Talk to Albert Einstein.

Ask anything. In their own voice, from their own era, grounded in the record. Documented quotes are shown with a source. Imaginative replies are plainly marked.

Free for the curious — no card, no trial.