Public Lecture: The Dark Side of the Universe Made Simple
Title: The Dark Side of the Universe or Why You Don’t Need to be Einstein to Understand his Theory
Speaker: Dr. Marusa Bradac, Professor at University of California, Davis
One of the greatest accomplishments in recent astrophysics is the creation of a model for the complete inventory of the Universe. All
the observational data tells us with extremely high certainty that ordinary matter (every particle ever detected by every person who ever
lived) makes up only one fifth of all the matter there is. The rest goes by the popular name of dark matter. Because it is dark, dark matter has been notoriously hard to detect; it doesn’t emit or reflect radiation such as light or heat, and it can have only the feeblest of interactions with itself and ordinary matter. So how do we know it is there? In this talk, I will discuss how I observe and measure the properties of invisible matter with the use of Einstein’s general relativity; and try to convince you that the principles behind it are not a rocket science and can be understood with a simple use of a wine glass.