Search found 8 matches

by Poobar
Mon Apr 27, 2009 9:12 am UTC
Forum: Science
Topic: Shedding light on the moon
Replies: 19
Views: 2007

Re: Shedding light on the moon

Spitvalve: The instrument which people far cleverer than myself are allowing me to use is aboard Chandrayaan-1. Comic JK: Yeah, as someone said, in space it's pretty much just radiation to take your heat away, which is woefully inefficient- counterintuitive, I know. All that sci-fi footage of people...
by Poobar
Wed Apr 22, 2009 10:59 am UTC
Forum: Science
Topic: Shedding light on the moon
Replies: 19
Views: 2007

Re: Shedding light on the moon

Unfortunatly the Earth's atmosphere is pretty much opaque to x-rays: http://www.src.le.ac.uk/projects/lobster/emswindow.jpg I think it's the O 2 and Ozone in the atmosphere that blocks X-rays, but I could be wrong. A spaced based Xaser could work, but it'd have to be pretty powerful to illuminate th...
by Poobar
Wed Apr 22, 2009 10:46 am UTC
Forum: Science
Topic: Favourite popular science magazine?
Replies: 20
Views: 1704

Re: Favourite popular science magazine?

Physics World- you've got to be a member of the institute of physics to get it, but there's some articles available online for free. Interesting, goes into detail, and they've just published one of my letters so I'm happy to plug them a bit :)
by Poobar
Fri Apr 17, 2009 9:39 am UTC
Forum: Science
Topic: Shedding light on the moon
Replies: 19
Views: 2007

Shedding light on the moon

I'm doing a PhD where I'm supposed to be making maps of the moon. The trouble is, the instrument I'm using relies on X-ray fluorescence from the lunar surface, and the Sun hasn't started up again into it's next solar cycle. There are pretty much no x-rays coming from the Sun. Therefore there are no ...
by Poobar
Mon Oct 20, 2008 12:04 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0491: "Twitter"
Replies: 156
Views: 34269

Re: "Twitter" Discussion

Yeah, Bill Bryson for me too.

Now I'm going to spend the afternoon writing poetry instead of doing Science. Curse you Randall!

...poetry about Science!
by Poobar
Wed Oct 08, 2008 2:44 pm UTC
Forum: Science
Topic: Childhood (not so) crackpot theories
Replies: 435
Views: 73201

Re: Childhood (not so) crackpot theories

Actually not crackpot: I remember thinking as a young kid abuot light- if I could get 2 mirrors and trap a lightbeam between them, would it stay there forever? And if so, could I add light to it until there was a really bright bit of light? (bah, a few decades earlier and I could have invented laser...
by Poobar
Mon Oct 06, 2008 4:16 pm UTC
Forum: Science
Topic: Recommended reading for science newbie, please?
Replies: 29
Views: 3788

Re: Recommended reading for science newbie, please?

Tricky to get hold of, possibly, but the Sky at Night series by Sir Patrick Moore is a fantasticly interesting and accesible set of astronomy books from the perspective of an amatuer astronomer (albeit a legendary one). Apart from that, I second (third?) Bill Bryson and the Science of Discworld seri...
by Poobar
Mon Oct 06, 2008 4:00 pm UTC
Forum: Science
Topic: How should I disinfect this water bottle?
Replies: 54
Views: 6008

Re: How should I disinfect this water bottle?

Go to a homebrew shop (or shop online, I guess) and buy some sterilising tablets (I use Young's) and a wine-bottle brush-should only cost a few quid. A few tablets, some hot water, and a scrub with the brush should do it- I regularly clean old wine-bottles/demijohns for homebrew this way and I've ne...

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