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Notes on video lecture:
The Annus Mirabilis Papers of 1905
Notes taken by Edward Tanguay on May 17, 2015 (go to class or lectures)
Choose from these words to fill the blanks below:
Oswald, Brownian, vital, sugar, molecules, Trägheit, quantum, Teilchen, mundane, suspect, turmoil, patent, random, extraordinary, influential, motion, signaling, 1890s, squared, clocks, any, physics, heuristic, skepticism, false, Young, against, doctoral
in 1905, Einstein, a 26-year-old clerk, wrote five papers which changed how humanity views reality
completely unexpected
he certainly was a good physics student but up to this point had done nothing
the five papers
1. March 1905: light
"On a Heuristic Viewpoint Concerning the Production and Transformation of Light"
introduced the idea of the light quantum
seminal paper in quantum mechanics
dominated much of throughout the 20th century
a proposal
was a particle theory of light
went the well established by this time 100 years previously when Thomas set forth the modern wave theory of light
but the wave theory of light dealt with light as it was traveling
shown that some experimental results could be explained that otherwise could not be explained
2. April 1905: size of
"A New Determination of Molecular Dimensions"
became his dissertation
the most ordinary, paper
demonstrated the size of molecules
became the most cited paper
not revolutionary but certainly
3. May 1905: existence of atoms
"Über die von der molekularkinetischen Theorie der Wärme geforderte Bewegung von in ruhenden Flüssigkeiten suspendierten "
explained a phenomenon known as Motion
particles jiggle around in water
early observes might have some kind of force in them
Brown showed that you can put almost substance in water and it will be bumped around
showed you could track the of the particles
developed the theory that explained the " walk" of these motions
made experiences which enabled scientists to verify this
there was still much about the talk of atoms
backed up later by experiments
was a skeptic of atoms (the professor whom Einstein's father wrote to)
Einstein's paper changed what he believed was true regarding this topic
4. June 1905: special theory of relativity
"The Electrodynamics of Moving Bodies"
Einstein had friend at patent office
talked about latest physics problems
one of these talks made him realize that time is
Einstein was working at the patent office probably dealing with patents which had to do with time, e.g. with telegraph systems
the synchronization of was an important issue
5. September 1905: E=mc²
"Ist die eines Körpers von seinem Energieinhalt abhängig?"
an addendum to the June 1905 paper
essential the addition was E=mc²
energy = mass x speed of light
one has to remember that all five of these papers were written by an unknown, 26-year-old patent clerk
each one had profound implications of how we understand reality
did this in a time when his life was in
but he had been thinking of these issues certainly since the early
a mixed reception
there were some early experimental results that showed it was
Vocabulary:
heuristic technique, n. any approach to problem solving, learning, or discovery that employs a practical methodology not guaranteed to be optimal or perfect, but sufficient for the immediate goals, where finding an optimal solution is impossible or impractical ⇒ "Einstein called his Light Quantum Paper a heuristic proposal because it treated light as a particle even though understanding light in terms of waves had been established 100 years previously when Thomas Young set forth the modern wave theory of light." |