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The best DSLR camera to buy in 2026: great deals on all-time classics

If you prefer the handling of a good old-fashioned DSLR, we've got you covered with our guide to the best DSLR cameras you ...

3D-printed helixes show promise as THz optical materials

Researchers at Lawrence Livermore National Laboratory (LLNL) have optimized and 3D-printed helix structures as optical ...