Epstein Secrets

. But the cos- mos doesn't care about our sensibilities. And once again, light provided the key to the door of the rabbit hole to a world that makes Alice's expe- riences seem tame. While they may be strange, the connections unearthed by Einstein and Minkowski can be intuitively understood—given the c

(although the idea that light might come in discrete packets had earlier been floated by the great Ludwig Boltzmann in 1877). I have come to admire Planck even more as I have learned about his life. Like Einstein, he was an unpaid lecturer and was not offered an academic position after completing his

risingly, the conventional approaches to this problem were unable to reproduce these observations. After struggling with the problem for six years, Planck presented a revolutionary proposal about radiation that agreed with observations. 2P_Glealer-StoryEverTold_Atirdd 78 12/16116 3:06 PIA EFTA002860

ertial reference frame which can be assumed to be at rest on the Earth and to have its origin situated at a detector on the Earth. We will call this Alice's 3 EFTA_R1_01441394 EFTA02403005 frame of reference. Long ago and far away there was a gamma ray burst. In it there was an event, E, where an

s about how the principle of the relativity of inertial frames can be made consistent with the existence of a minimal length scale, taken to be the Planck length, Ip[1, 2, 3]. It may also be seen as making possible a maximum momenta for an individual particle. Over the almost decade since it was first

(37), directions perpendicular to the direction of the boost can con- tract. This gives rise to an apparent paradox. Consider two inertial observers, Alice and Bob, who are approaching each other along their i axes, each of whom carries a stick along their x axis. Sup- pose that by (37) Alice sees Bob's

(DSR) the action of the Lorentz group on momen- tum eigenstates is deformed to preserve a maximal momentum or minimal length, supposed equal to the Planck length, to, = VO. The classical and quantum dynamics of a particle prop- agating in ti-Minkowski spacetime is discussed in order to examine an appare