|Albert Einstein physics|
- All motion is relative
- except for the speed of light,
- which is constant for every observer
- no matter how fast the observer moves
- relative to the light emitter.
- As a body in motion
- approaches the speed of light
- its energy and therefore its mass
- approaches infinity.
- Thus Albert Einstein explained
- how Maxwell’s equations
- work for rigid bodies in motion.
- Essentially, physical laws
- are not changed
- by the motion of the framework
- in which they are tested.
- In 1905, Einstein realized that E = mc2
- —the energy of an object
- is equivalent to its mass
- multiplied by the square of the speed of light.
- In 1939, aware of Hitler’s efforts to build an atomic bomb,
- Einstein helped persuade President Roosevelt
- to push the U.S. to be the first to develop one.
- In 1950, Einstein analyzed the grave global risks
- of the nuclear arms race, and called
- for the “peaceful coexistence of nations.”
- I lie under blankets, and
- my window is open to the night.
- A jet warbles through clouds
- in his southerly descent.
- A freight train comes closer
- from possibly any direction.
- Echos fail to distinguish
- north from south, east from west.
- The big world is flooded
- with air against my ears.