Explore technology and artificial intelligence, examining how systems work, where they are useful and what their limitations mean.
AI learns by adjusting parameters to reduce errors—not like a human mind. Explore data, loss, backpropagation, transformers, evaluation and bias.
Sep 16, 2026 • 7 min readRead the discovery →New stories, explanations and research from Technology & AI.
A light-emitting diode produces photons when electrons and holes recombine across a semiconductor junction, with the material’s energy structure determining the colour of the…
Sep 26, 2026 • 12 min read
Wi‑Fi lets nearby devices exchange digital information using radio waves and networking rules from the IEEE 802.11 family of standards. A router or access…
Sep 26, 2026 • 14 min read
An airplane stays aloft when motion through the air and the shape and angle of its wings create enough aerodynamic lift to balance its…
Sep 25, 2026 • 13 min read
Battery recycling combines safe collection, disassembly and chemical or thermal processing to recover metals and other materials, but efficiency depends on cell design, sorting…
Sep 24, 2026 • 12 min read
Lithium ions shuttle between two host materials while electrons travel through an external circuit, turning chemical potential into usable electrical energy.
Sep 23, 2026 • 12 min read
Quantum sensors turn changes in atomic states, spin or interference into measurements of time, fields and motion. Sensitivity still depends on controlling noise.
Sep 23, 2026 • 3 min read
A clear energy balance explains how heat pumps move more heat than their electrical input.
Sep 23, 2026 • 5 min read
The Domain Name System translates human-readable domain names into network addresses through a distributed hierarchy of resolvers, root servers, registries and authoritative name servers.
Sep 23, 2026 • 12 min read
Digital information travels as carefully timed pulses of light through thin glass strands, supported by lasers, amplifiers, switches and error correction.
Sep 22, 2026 • 12 min read
Hair-thin glass fibers inside armored ocean cables move most intercontinental data as pulses of light between landing stations.
Sep 18, 2026 • 13 min read
Hair-thin glass fibers inside armored ocean cables move most intercontinental data as pulses of light between landing stations.
Sep 18, 2026 • 13 min read
Quantum information is fragile, yet researchers can detect mistakes without directly reading and destroying the state they want to protect.
Sep 14, 2026 • 8 min read
Every GPS position depends on clocks orbiting Earth—and those clocks do not tick at the same rate as clocks on the ground.
Sep 14, 2026 • 8 min read
Modern legged robots can practice millions of simulated attempts, optimize a control policy and transfer the result into machines that still have to survive…
Sep 14, 2026 • 4 min readOne remarkable idea at a time—nature, science, history and beyond.
