Discussion:
OT etendue (what if)
(too old to reply)
g***@gmail.com
2016-02-11 15:05:09 UTC
Permalink
http://what-if.xkcd.com/145/

Just thought some of you might enjoy it.

George H.
Phil Hobbs
2016-02-11 15:11:30 UTC
Permalink
Post by g***@gmail.com
http://what-if.xkcd.com/145/
Just thought some of you might enjoy it.
George H.
Of course, if you use sunlight to pump a laser, you _can_ heat something
hotter than the Sun. ;)

Cheers

Phil Hobbs
g***@gmail.com
2016-02-11 15:35:07 UTC
Permalink
Post by Phil Hobbs
Post by g***@gmail.com
http://what-if.xkcd.com/145/
Just thought some of you might enjoy it.
George H.
Of course, if you use sunlight to pump a laser, you _can_ heat something
hotter than the Sun. ;)
Cheers
Phil Hobbs
I don't know if you read sci-fi, but there is a David Brin novel "Sundiver"
where they pump the excess heat out of a sunship with a laser.

George H.
Phil Hobbs
2016-02-11 19:11:37 UTC
Permalink
Post by g***@gmail.com
Post by Phil Hobbs
Post by g***@gmail.com
http://what-if.xkcd.com/145/
Just thought some of you might enjoy it.
George H.
Of course, if you use sunlight to pump a laser, you _can_ heat something
hotter than the Sun. ;)
Cheers
Phil Hobbs
I don't know if you read sci-fi, but there is a David Brin novel "Sundiver"
where they pump the excess heat out of a sunship with a laser.
George H.
I used to really like Brin back in the day, especially his one about the
spaceship full of dolphins. Haven't read any SF in probably 30 years,
though.

Cheers

Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net
Lu Wei
2016-02-16 04:54:27 UTC
Permalink
Post by g***@gmail.com
http://what-if.xkcd.com/145/
Just thought some of you might enjoy it.
George H.
Interesting and teaches me something. I have subscribed it's feed.
Thanks for your recommendation.
--
Regards,
Lu Wei
PGP key ID: 0x92CCE1EA
Loading...