Today’s Anniversary: The Positron

It's August 2, and on this date in 1932, Carl Anderson discovered the positron.  The positron is the antiparticle of the electron, meaning it has the same mass an an electron but a positive charge instead of the electron's negative one.  If you're wondering what the discovery of the positron means in a practical sense, think of PET scans people receive at hospitals or other medical facilities.  PET stands for positron emission technology, and PET scans can be very helpful in creating 3-D images of the body's internal organs.  If you are interested in positrons and other types of matter, consider taking our Chemistry (Lab) or Chemistry (Non-Lab) course.  Both courses will provide you with a solid background in chemistry and prepare you to make scientific discoveries of your own as you continue your education.