Free pulsating photos

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stethoscope, ecg, electrocardiogram, heartbeat, heart, frequency, curve, cardiology, control Examination, heart Diseases, healthcare

Public Domain
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black, stethoscope, eyeglasses, white, surface, ecg, electrocardiogram, heartbeat, heart, frequency, curve

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analog watch, close-up shot, watch face, tachymeter scale, pulsation scale, stylish watch, detailed close-up, Montjuïc 1986, chronograph watch, speed scale, watch details

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red, white, heart rate, monitor, heart illustration, heartbeat, illustration, heart care, medical, care, heart

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Sigma Scorpii, LBN 1104, spectroscopic binary, B-type stars, Beta Cep, pulsating variable, disentangled spectra, orbital elements, mass estimate, astronomical image, star system

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Messier 51, Whirlpool Galaxy, NGC 5194, Canes Venatici, spiral galaxy, HD 117815, A5 pulsating variable star, space, universe, galaxy, composite image

Public Domain