There are many more things we can learn using the Doppler Shift, and here is a summary of just a few: 1  We can measure the masses of binary stars, by detecting the velocity changes as they orbit around their common center of gravity, and combining these velocities with the period of the orbit.
Serendipity is when someone accidently finds something good. An example of serendipity is finding a twenty dollar bill in the pocket of a coat you haven't worn in awhile. YourDictionary definition and usage example.
It was a serendipitous chance meeting when Tara chose that coffee shop where she met her future husband. adjective The definition of serendipitous refers to something good or fortunate that happens as a result of luck or chance. When you meet the person who becomes your spouse because your train is late that day, this is an example of a serendipitous event. Adjective.