Space, Time and Einstein
Originally from New York
5th year graduate student at the University of Chicago, working at Fermilab
Graduating in a few months with a measurement of the mass of the top quark (ask me what that means if you donít know!)
PLEASE ask questions if something isnít clear!
Chicago (~40 miles)
Related to our work at Fermilab
Hopefully related to things youíre learning in school
Physics and astronomy, but also chemistry
Some really interesting questions about the world
Where do things happen? In space Ö
When do things happen? In time Ö
Because Ö he was Einstein!
Easily the greatest physicist and scientist in modern history. One of the great men of the 20th century
1905: Clerk in Patent Office
At older age!
What did Einstein do?
Many, many discoveries. Easily could have won 3-4 Nobel prizes
He was a really smart man!
I will talk today about his two theories of relativity (Special Relativity and General Relativity)
E=mc2 (special relativity)
Black holes (general relativity)
Space and time (a studentís perspective?)
This piece of paper is 8 inches long
It is 1.5 miles from the school to the store
I have to get up at 7 am
The bus is 20 minutes late
What do we mean by distance (such as 1.5 miles)?
What do we mean by a time (such as 7 am)?
The ďprime moverĒ
An unknown, priviledged being in THE state of perpetual, absolute rest
Defined by (x, y, z) coordinate system with respect to the prime mover
Unique and clearly defined
Time is measured by the prime moverís clocks
Aristotle (384-322 BC)
No such things as ďabsolute restĒ
The laws of nature and physics are identical for anybody moving with a constant speed along a straight line
Galileo Galilei (1564-1642)