Startalk we’re back featuring my
interview with the British physicist
Brian Cox so I had to bring up the fact
that he and I had like a Twitter
argument for the physics of lightsabers
aha yeah and I just had to bring it up
and just open up old wounds yeah right
let’s find out how it went down I don’t
remember how this happened I think I
tweeted something about life savers then
you jumped in and then people just
wanted a fight yeah yeah that was a good
gig fight I think I said if lightsabers
are made of white yeah then they could
surely do damage by cutting things but
they would not stop one another the way
two swords would in a swashbuckling
encounter this that’s all I said there’s
a process that I’ve studied actually
photon photon R gamma gamma scattering
we college okay so it’s a measured
process at particle accelerators so very
high energies very energy collisions
there’s a probability that photons will
will kick off each other fans off it
rather than just pass through yes so
it’s remarkable the remarkable property
of particle physics so they don’t
interact so I can look at you and all
these other ones that are flying across
there don’t mess up this view of you but
actually radio waves and microwaves same
yeah yeah i phi all over the place
nothing two colliding but actually when
you go up high any two high energies
then the the probability that photons
will collide with each other increases
and one of the interesting things at
cosmic ray physics that you might know
about is that there’s a cut-off yes
we’re donkey car off yeah whether the
cosmic rays can be such high energy that
the probability they are bounce off the
photons in the Cosmic Microwave
Background becomes high so so my point
was just a technical one that photons do
have a there’s a probability they’ll
collide together and if you had this
high energy all trying is your
lightsaber it would have to be really
really high energy lightsaber yeah and
so now this would come into the regime
that you’re describing and they would
come in contact and they would you would
feel this did they interact with each
other just like just like these things
interact okay what I loved about that
though is you said which I love the fact
that there’s
there’s an audience for that that kind
of interaction that we had and it’s case
really geeky right it’s just you talking
about lightsabers I had no the physics
of the like species how much people dick
out over there
interview with the British physicist
Brian Cox so I had to bring up the fact
that he and I had like a Twitter
argument for the physics of lightsabers
aha yeah and I just had to bring it up
and just open up old wounds yeah right
let’s find out how it went down I don’t
remember how this happened I think I
tweeted something about life savers then
you jumped in and then people just
wanted a fight yeah yeah that was a good
gig fight I think I said if lightsabers
are made of white yeah then they could
surely do damage by cutting things but
they would not stop one another the way
two swords would in a swashbuckling
encounter this that’s all I said there’s
a process that I’ve studied actually
photon photon R gamma gamma scattering
we college okay so it’s a measured
process at particle accelerators so very
high energies very energy collisions
there’s a probability that photons will
will kick off each other fans off it
rather than just pass through yes so
it’s remarkable the remarkable property
of particle physics so they don’t
interact so I can look at you and all
these other ones that are flying across
there don’t mess up this view of you but
actually radio waves and microwaves same
yeah yeah i phi all over the place
nothing two colliding but actually when
you go up high any two high energies
then the the probability that photons
will collide with each other increases
and one of the interesting things at
cosmic ray physics that you might know
about is that there’s a cut-off yes
we’re donkey car off yeah whether the
cosmic rays can be such high energy that
the probability they are bounce off the
photons in the Cosmic Microwave
Background becomes high so so my point
was just a technical one that photons do
have a there’s a probability they’ll
collide together and if you had this
high energy all trying is your
lightsaber it would have to be really
really high energy lightsaber yeah and
so now this would come into the regime
that you’re describing and they would
come in contact and they would you would
feel this did they interact with each
other just like just like these things
interact okay what I loved about that
though is you said which I love the fact
that there’s
there’s an audience for that that kind
of interaction that we had and it’s case
really geeky right it’s just you talking
about lightsabers I had no the physics
of the like species how much people dick
out over there
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