[{"n": "Microscope", "u": "/e/science-and-measurement/microscope/", "s": "Instrument for viewing objects invisible to the naked eye."}, {"n": "Optical microscope", "u": "/e/science-and-measurement/optical-microscope/", "s": "Uses visible light and lenses to magnify small objects."}, {"n": "Telescope", "u": "/e/science-and-measurement/telescope/", "s": "Observing the universe across the electromagnetic spectrum"}, {"n": "Optical telescope", "u": "/e/science-and-measurement/optical-telescope/", "s": "Instrument that gathers visible light to magnify distant objects."}, {"n": "Radio telescope", "u": "/e/science-and-measurement/radio-telescope/", "s": "Detecting the invisible universe through radio waves."}, {"n": "Prism (optics)", "u": "/e/science-and-measurement/prism-optics/", "s": "Transparent element that refracts, reflects, or polarizes light."}, {"n": "Polarizer", "u": "/e/science-and-measurement/polarizer/", "s": "An optical filter that transmits light of a specific polarization and blocks others."}, {"n": "Photometer", "u": "/e/science-and-measurement/photometer/", "s": "Instrument for measuring light quantities like luminous flux."}, {"n": "Oscilloscope", "u": "/e/science-and-measurement/oscilloscope/", "s": "Electronic test instrument that graphically displays varying voltages as a function of time."}, {"n": "Magnetic resonance imaging", "u": "/e/science-and-measurement/magnetic-resonance-imaging/", "s": "Medical imaging technique using magnetic fields and radio waves."}, {"n": "Medical imaging", "u": "/e/science-and-measurement/medical-imaging/", "s": "Technique and process of imaging the interior of a body for clinical analysis and medical intervention."}, {"n": "Medical ultrasound", "u": "/e/science-and-measurement/medical-ultrasound/", "s": "Uses high-frequency sound waves for medical imaging and therapy."}, {"n": "Radiography", "u": "/e/science-and-measurement/radiography/", "s": "Imaging the unseen with X-rays and radiation."}, {"n": "Polymerase chain reaction", "u": "/e/science-and-measurement/polymerase-chain-reaction/", "s": "PCR amplifies specific DNA sequences rapidly for study."}, {"n": "Nanotechnology", "u": "/e/science-and-measurement/nanotechnology/", "s": "Manipulating matter at the nanoscale for new materials and devices."}, {"n": "Machine learning", "u": "/e/science-and-measurement/machine-learning/", "s": "Statistical algorithms that learn from data without explicit programming."}]