Posts Tagged ‘sci-if’

WIS – Should I add This Poem

July 1, 2017

Dear Reader, my sci-fi novel Writings in Science, a History of the Future, is finished and out there for all to read. But in the 2nd ed. should I add this poem?

sew me up
a shinning star
with a helium needle
and hydrogen thread

sew me up
a galaxy cluster
with a stout
gravity ray.

sew me up
all that is
over the voids
and around the edges.

For everything Hendricks see my overall website:
tomhendricks.us

Light and Time, Question for a Physicistd

June 14, 2017

Sent this question about LIGHT AND TIME, to ASK A MATHEMATICIAN See there website at
askamathematician.com

My Question.
Light is outside time, but if it enters a Bose Einstein Condensate, it slows down. How do we reconcile that the photon is both outside time, but slows down?

Their Answer.
There’s a post here that talks about that a bit.

http://www.askamathematician.com/2013/07/q-what-does-it-mean-for-light-to-be-stopped-or-stored/

Basically, when light exists, it’s traveling at c. When light “slows down”, then at least part of the time it’s not light. In the experiments where light is “stopped” it would be more accurate to say that it is “stored”. Very carefully prepared condensates (not just any old condensate) stops light kinda like a vinyl record stops sound (kinda). Hope that helps!
-Physicist


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