Relativity & Cosmos
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Spacetime, gravity and the large-scale universe, after Einstein.
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About this collection
Einstein’s spacetime and the universe it shapes: mass curves spacetime and light follows the curve, and black holes stretch matter and may or may not destroy information. Unseen dark matter holds galaxies together, while dark energy speeds up cosmic expansion, stretching light into redshift and carrying distant galaxies beyond our horizon. Unisex pixel-art physics tees and hoodies (sizes S–5XL), plus stickers and sticker sheets.
Every relativity design here starts from Einstein's 1905 and 1915 theories and the observations that confirmed them.