That have teleportation across stellar distances, but only to teleportation booths that have been first been transported to their destinations by conventional space travel on ships. I know I've read
several stories using this over the decades. but can't think of 'em
right now....some of the stories dealt with ships that could use the destination booth while in flight, simplifying crew changes and resupply over the long periods it would take to get to a destination. SOme
couldn't use the target booth until it was set up at the destination, complicating the long flight to it.
That have teleportation across stellar distances, but only to
teleportation booths that have been first been transported to their >destinations by conventional space travel on ships.
Lee Gleason <lee.gleason@comcast.net> wrote or quoted:
That have teleportation across stellar distances, but only to >>teleportation booths that have been first been transported to their >>destinations by conventional space travel on ships.
Transfer booths only working between fixed locations equipped with
booths exist in Larry Niven's Ringworld.
In article <booths-20250707135221@ram.dialup.fu-berlin.de>,
Stefan Ram <ram@zedat.fu-berlin.de> wrote:
Lee Gleason <lee.gleason@comcast.net> wrote or quoted:
That have teleportation across stellar distances, but only to >>>teleportation booths that have been first been transported to their >>>destinations by conventional space travel on ships.
Transfer booths only working between fixed locations equipped with
booths exist in Larry Niven's Ringworld.
I was thinking about that. Was there a reason given why they aren't
used off-planet? Maybe they are SPEOL only?
In <md20hbFmrmjU1@mid.individual.net> ted@loft.tnolan.com (Ted Nolan <tednolan>) writes:
In article <booths-20250707135221@ram.dialup.fu-berlin.de>,
Stefan Ram <ram@zedat.fu-berlin.de> wrote:
Transfer booths only working between fixed locations equipped with
booths exist in Larry Niven's Ringworld.
I was thinking about that. Was there a reason given why they aren't
used off-planet? Maybe they are SPEOL only?
Also... they had to compensate for the differing potential
energies between receiving and transmission sites, as one
could be "traveling" (term used a bit loosely) a lot faster
and in a different direction, and altitude, etc., than
the other.
This would otherwise lead to potentially a hefty chunk of
heat being released at the receiving site.
(This was, iirc, a plot device in one of his stories).
That have teleportation across stellar distances, but only to=20=20
teleportation booths that have been first been transported to their=20 >destinations by conventional space travel on ships. I know I've read=20 >several stories using this over the decades. but can't think of 'em=20
right now....some of the stories dealt with ships that could use the=20 >destination booth while in flight, simplifying crew changes and resupply=
over the long periods it would take to get to a destination. SOme=20
couldn't use the target booth until it was set up at the destination,=20 >complicating the long flight to it.
That have teleportation across stellar distances, but only to teleportation booths that have been first been transported to their destinations by conventional space travel on ships. I know I've read
several stories using this over the decades. but can't think of 'em
right now....some of the stories dealt with ships that could use the destination booth while in flight, simplifying crew changes and resupply over the long periods it would take to get to a destination. SOme
couldn't use the target booth until it was set up at the destination, complicating the long flight to it.
In <md20hbFmrmjU1@mid.individual.net> ted@loft.tnolan.com (Ted Nolan <tednolan>) writes:
In article <booths-20250707135221@ram.dialup.fu-berlin.de>,
Stefan Ram <ram@zedat.fu-berlin.de> wrote:
Lee Gleason <lee.gleason@comcast.net> wrote or quoted:
That have teleportation across stellar distances, but only to
teleportation booths that have been first been transported to their
destinations by conventional space travel on ships.
Transfer booths only working between fixed locations equipped with
booths exist in Larry Niven's Ringworld.
I was thinking about that. Was there a reason given why they aren't
used off-planet? Maybe they are SPEOL only?
Also... they had to compensate for the differing potential
energies between receiving and transmission sites, as one
could be "traveling" (term used a bit loosely) a lot faster
and in a different direction, and altitude, etc., than
the other.
This would otherwise lead to potentially a hefty chunk of
heat being released at the receiving site.
(This was, iirc, a plot device in one of his stories).
It's bad enough when talking about locations on the
same planet, but if you're looking at space velocities
and energy wells, etc., it's mind boggling...
That have teleportation across stellar distances, but only to teleportation booths that have been first been transported to their destinations by conventional space travel on ships. I know I've read
several stories using this over the decades. but can't think of 'em
right now....some of the stories dealt with ships that could use the destination booth while in flight, simplifying crew changes and resupply over the long periods it would take to get to a destination. SOme
couldn't use the target booth until it was set up at the destination, complicating the long flight to it.
--
Lee K. Gleason N5ZMR
Control-G Consultants
lee.gleason@comcast.net
On 07/07/2025 14:51, danny burstein wrote:
In <md20hbFmrmjU1@mid.individual.net> ted@loft.tnolan.com (Ted Nolan ><tednolan>) writes:
In article <booths-20250707135221@ram.dialup.fu-berlin.de>,
Stefan Ram <ram@zedat.fu-berlin.de> wrote:
Lee Gleason <lee.gleason@comcast.net> wrote or quoted:
That have teleportation across stellar distances, but only to
teleportation booths that have been first been transported to their
destinations by conventional space travel on ships.
Transfer booths only working between fixed locations equipped with
booths exist in Larry Niven's Ringworld.
I was thinking about that. Was there a reason given why they aren't
used off-planet? Maybe they are SPEOL only?
Also... they had to compensate for the differing potential
energies between receiving and transmission sites, as one
could be "traveling" (term used a bit loosely) a lot faster
and in a different direction, and altitude, etc., than
the other.
This would otherwise lead to potentially a hefty chunk of
heat being released at the receiving site.
(This was, iirc, a plot device in one of his stories).
It's bad enough when talking about locations on the
same planet, but if you're looking at space velocities
and energy wells, etc., it's mind boggling...
Unless you're in space to begin with.
_
I think Niven's "All the Bridges Rusting" firstly
shows an interstellar spaceship which can teleport
itself but it needs a receiver, which is in the
outer solar system - so, less deep in the Sun's
gravity well. I don't reme,ber if that mattered.
Meanwhile, another spaceship is out there and
in trouble. ><https://larryniven.net/?q=bibliographic-reference/all-the-bridges-rusting>
In article <104hion$3528v$1@dont-email.me>,
Robert Carnegie <rja.carnegie@gmail.com> wrote:
On 07/07/2025 14:51, danny burstein wrote:
In <md20hbFmrmjU1@mid.individual.net> ted@loft.tnolan.com (Ted Nolan >><tednolan>) writes:
In article <booths-20250707135221@ram.dialup.fu-berlin.de>,
Stefan Ram <ram@zedat.fu-berlin.de> wrote:
Lee Gleason <lee.gleason@comcast.net> wrote or quoted:
That have teleportation across stellar distances, but only to
teleportation booths that have been first been transported to their >>>>>> destinations by conventional space travel on ships.
Transfer booths only working between fixed locations equipped with >>>>> booths exist in Larry Niven's Ringworld.
I was thinking about that. Was there a reason given why they aren't
used off-planet? Maybe they are SPEOL only?
Also... they had to compensate for the differing potential
energies between receiving and transmission sites, as one
could be "traveling" (term used a bit loosely) a lot faster
and in a different direction, and altitude, etc., than
the other.
This would otherwise lead to potentially a hefty chunk of
heat being released at the receiving site.
(This was, iirc, a plot device in one of his stories).
It's bad enough when talking about locations on the
same planet, but if you're looking at space velocities
and energy wells, etc., it's mind boggling...
Unless you're in space to begin with.
_
I think Niven's "All the Bridges Rusting" firstly
shows an interstellar spaceship which can teleport
itself but it needs a receiver, which is in the
outer solar system - so, less deep in the Sun's
gravity well. I don't reme,ber if that mattered.
Meanwhile, another spaceship is out there and
in trouble. >><https://larryniven.net/?q=bibliographic-reference/all-the-bridges-rusting> >>
I think _One Step From Earth_ is Harry Harrison's
treatment of interstellar teleport machines.
Someone mentioned _Stargate SG-1_. I suppose it
qualifies except for "booth". Stories differ on
whether a traveller walks along inside a space
wormhole, or is quantumed from one planet to
another, or is sent or received electronically,
digitally - there's a story where Teal'c's pattern
is trapped inside Earth's Stargate and they have
to fix it without turning off and on again...?
I also found teleportation discussed in the second
half of 2024: >><https://www.reddit.com/r/printSF/comments/1g9mrzu/any_books_exploring_what_earth_is_like_after_the/>
"after the invention of matter transporters".
I recall one story where a spaceship would teleport onto a receiver on its >nose, repeatedly. So you had rapid apparent motion without much real >velocity. It kind of put me in the mind of Smith's inert & free though not >really the same thing at all.
That have teleportation across stellar distances, but only to teleportation booths that have been first been transported to their destinations by conventional space travel on ships. I know I've read
several stories using this over the decades. but can't think of 'em
right now....some of the stories dealt with ships that could use the destination booth while in flight, simplifying crew changes and resupply over the long periods it would take to get to a destination. SOme
couldn't use the target booth until it was set up at the destination, complicating the long flight to it.
Lee Gleason <lee.gleason@comcast.net> wrote or quoted:
That have teleportation across stellar distances, but only to
teleportation booths that have been first been transported to their
destinations by conventional space travel on ships.
Transfer booths only working between fixed locations equipped with
booths exist in Larry Niven's Ringworld.
In article <104gjc9$gmu$2@reader1.panix.com>,
danny burstein <dannyb@panix.com> wrote:
In <md20hbFmrmjU1@mid.individual.net> ted@loft.tnolan.com (Ted Nolan
<tednolan>) writes:
In article <booths-20250707135221@ram.dialup.fu-berlin.de>,
Transfer booths only working between fixed locations equipped with
booths exist in Larry Niven's Ringworld.
I was thinking about that. Was there a reason given why they aren't
used off-planet? Maybe they are SPEOL only?
Also... they had to compensate for the differing potential
energies between receiving and transmission sites, as one
could be "traveling" (term used a bit loosely) a lot faster
and in a different direction, and altitude, etc., than
the other.
This would otherwise lead to potentially a hefty chunk of
heat being released at the receiving site.
(This was, iirc, a plot device in one of his stories).
It's bad enough when talking about locations on the
same planet, but if you're looking at space velocities
and energy wells, etc., it's mind boggling...
I think it's probably a handwave that it works on the planet then, as
the Earth is revolving, progressing on its orbit & drifting through
space with the spiral arm and whatnot.
The rotation of the Earth was mentioned as a problem; for changes in
either latitude or longitude. (It might even have been specifically
stated that if you stayed on the same line of longitude, and your
latitude only underwent a sign change, there was no problem.)
However, the motion of the Earth around the Sun, or the Sun around
Sag A*, or the Milky Way's headlong rush towards Andromeda would
not have been an issue.
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