What is a spectrometer? A spectrometer is an tool commonly used by astronomers which splits the light collected by a telescope into its colors. This allows astronomers see the details in the light from space. Astronomers know how to get a lot of special information about a space object by studying its light. By using spectrometers, we can find out the temperature of an object in space, learn which direction it is traveling, find out how fast it is going, figure out its weight and even find out what it is made of.
Negative inotropes weaken the heart's contractions and slow the heart rate. These medicines are used to treat high blood pressure (hypertension), chronic heart failure, abnormal heart rhythms (arrhythmias), and chest pain (angina).
A resting heart rate lower than 60 could also be the result of taking certain medications. Many medications people take especially medication for blood pressure, such as the beta blockers, will lower your heart rate, Bauman said. If coupled with symptoms, a low heart rate may signal a problem. person's target heart rate zone is between 50 percent and 85 percent of his or her maximum heart rate, according to the AHA. Most commonly, maximum heart rate is calculate by subtracting your age from 220: 1  220 - Age. 2  For a 30-year-old person, for example: 220 - 30 = 190.