Search found 8 matches

by One128
Mon Apr 03, 2017 6:04 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1818: "Rayleigh Scattering"
Replies: 99
Views: 27806

Re: 1818: "Rayleigh Scattering"

Yeah. I think this is the problem. Some people would indeed say that white powder in red light is red, that a CD is commonly silver (shiny grey?) but sometimes other several other colors and in that sense air is blue. What basis is there for picking blue over red? Just that it is more commonly blue...
by One128
Sun Apr 02, 2017 3:09 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1818: "Rayleigh Scattering"
Replies: 99
Views: 27806

Re: 1818: "Rayleigh Scattering"

I think you missed something here. I'm not sure how these scales return blue light, but if wbeaty is right that it depends on a black background that suggests angle does matter in these cases. What this would suggest is that no material in the skin/feathers of these animals is blue, it is just the ...
by One128
Sun Apr 02, 2017 9:52 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1818: "Rayleigh Scattering"
Replies: 99
Views: 27806

Re: 1818: "Rayleigh Scattering"

Nope. You've got the very misconception that this comic is designed to fight. Not really. There are, however, numerous misconceptions in your response. I'll try to address them one by one. Ask yourself what material up there is colored blue? Just because we see a color somewhere, doesn't mean that ...
by One128
Sat Apr 01, 2017 10:30 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1818: "Rayleigh Scattering"
Replies: 99
Views: 27806

Re: 1818: "Rayleigh Scattering"

orthogon wrote:Why are people assuming Randall is siding with Blue Air Woman?

I don't know about people, but I'm assuming that because he made the same argument himself in What-if 141.
by One128
Sat Apr 01, 2017 9:36 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1818: "Rayleigh Scattering"
Replies: 99
Views: 27806

Re: 1818: "Rayleigh Scattering"

Agreed, Randall messed up here. Air is not blue; it's colorless. Simply taking the third panel reasoning one step further would reveal that the "air is blue" explanation is bogus: "It's why the rising moon looks orange - because of all the... blue air in the way? Err... wait a second....
by One128
Mon Jul 29, 2013 12:19 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1244: "Six Words"
Replies: 24
Views: 14680

Re: 1233: "Six Words"

Woooo! Finally, Orbiter gets a mention in xkcd! This has really made my day. Thanks, Randall! :D
by One128
Fri Feb 01, 2013 12:21 pm UTC
Forum: What If?
Topic: What-If 0030: "Interplanetary Cessna"
Replies: 108
Views: 35115

Re: What-If 0030: Interplanetary Cessna

On a somewhat related note, I'm currently writing a little SF piece set on a planet with about half of Earth's gravity. In one scene, there's a wild chase across the roof-tops, and I was asking myself whether it was safe to assume, as an approximation, that you could jump about twice as far and sur...
by One128
Tue Jan 29, 2013 11:46 pm UTC
Forum: What If?
Topic: What-If 0030: "Interplanetary Cessna"
Replies: 108
Views: 35115

Re: What-If 0030: Interplanetary Cessna

Years of toying around with Orbiter Space Flight Simulator confirm that Mars is pretty much the most frustrating Solar System body to attempt atmospheric flight on; the atmosphere is just plain annoying and spiteful - too thin for aerodynamic control surfaces to work decently, but still dense enough...

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