- #1
Libohove90
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I am reading The Elegant Universe...and I have bumped to possibly the first part of the book that I can not understand.
When an electron and a positron pop out of existence, they soon annihilate each other with a "bang"...emitting a photon.
If fundamental substance of universe are considered point particles, the 2 particles would bump to each other and emit a photon. That means they have a precise location and moment in time in which they annihilate each other that all reference points can agree.
However, string theory says that if the fundamental substance of the universe are vibrating strings...the two strings "merge" forming a vibrational pattern that creates the photon. However, since the strings are TWO-DIMENSIONAL...two observers cannot agree on the location and precise moment in time in which they annihilate each other.
That last statement I do not understand. It is relativity applied to strings. I don't understand why two observers do not agree in the location and time the two strings annihilate each other...just because they are two-dimensional. Plz offer me a clear explanation. Thank u
When an electron and a positron pop out of existence, they soon annihilate each other with a "bang"...emitting a photon.
If fundamental substance of universe are considered point particles, the 2 particles would bump to each other and emit a photon. That means they have a precise location and moment in time in which they annihilate each other that all reference points can agree.
However, string theory says that if the fundamental substance of the universe are vibrating strings...the two strings "merge" forming a vibrational pattern that creates the photon. However, since the strings are TWO-DIMENSIONAL...two observers cannot agree on the location and precise moment in time in which they annihilate each other.
That last statement I do not understand. It is relativity applied to strings. I don't understand why two observers do not agree in the location and time the two strings annihilate each other...just because they are two-dimensional. Plz offer me a clear explanation. Thank u