Example image of eyePlorer eyePlorer map for 'Astrophysical maser': Electromagnetic spectrum Microwave Spectral line Stimulated emission Atmosphere Comet Interstellar medium Molecular cloud Planet Space Stellar atmosphere Frequency Laser Laser pumping Maser Max Planck Population inversion Quantum mechanics Statistical mechanics Resonance Resonator Coherence (physics) Normal mode Amplified spontaneous emission Feedback Lasing threshold Regenerative circuit Ti-sapphire laser Charles Hard Townes Rotational transition Vibrational transition Astrophysics Micrometre Optics Wavelength Astronomer Ethanol Physicist Terahertz radiation Electrical engineering Hertz Magnetic field Polarization Interferometry Very Long Baseline Interferometry Stellar evolution Megamaser Velocity Cauchy distribution Normal distribution
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