Comment

Comment by kathy: ky on January 7, 2015 at 4:09pm

That's wonderful.

Comment by Christopher Cosgrove on January 3, 2015 at 12:57am

Thanks Daniel. Forgotten how good Dave Allen was and he does highlight the absurdity of religion brilliantly.

Comment by Daniel W on January 2, 2015 at 10:59pm

Kind of long, but funny.

Comment by Grinning Cat on December 27, 2014 at 8:58pm

(Grinning and groaning at "Labracadabrador!")

About fog lights, it's true that longer (redder) wavelengths of light scatter less and shorter (bluer) wavelengths of light scatter more in fog and in the atmosphere. (Blue skies are scattered light; red and orange sunrises and sunsets are what's left over.) The yellow and amber fog lights are white (mixed wavelengths) with most of the blues taken away. They're not a single pure wavelength.

I suppose fog lights aren't red because (1) the more aggressively filtered an incandescent bulb or lamp is, the hotter and more inefficient it is; (2) it's easier to recognize objects in a broader spectrum of light; and, most importantly, (3) we don't want anything on the front of a car to be confused with taillights or brake lights (or an emergency vehicle).

Coming back to some (ancient) actual humor, this radio exchange supposedly happened between a U.S. Navy ship and Canadian authorities:

US Ship: Please divert your course 0.5 degrees to the south to avoid a collision.

CND reply: Recommend you divert your course 15 degrees to the South to avoid a collision.

US Ship: This is the Captain of a US Navy Ship. I say again, divert your course.

CND reply: No. I say again, you divert YOUR course!

US Ship: THIS IS THE AIRCRAFT CARRIER USS CORAL SEA, WE ARE A LARGE WARSHIP OF THE US NAVY. DIVERT YOUR COURSE NOW!!

CND reply: This is a lighthouse. Your call.

(snopes.com on the origins of this joke)

Comment by Terry Groff on December 27, 2014 at 3:55pm

Best you "watch out where the huskies go" :-)

Comment by sk8eycat on December 27, 2014 at 3:34pm

Oh, dear!  (Deer?)  That last remark of yours made me think of "yellow snow."   Eww.

Comment by Terry Groff on December 27, 2014 at 1:06pm

P.S. Maybe Rudolph's nose should have been yellow.

Comment by Terry Groff on December 27, 2014 at 1:04pm

Ok, I'm not a scientist but I've played one on Facebook. I think fog lights are yellow because it's the lowest wavelength (next to orange) that will still illuminate other objects well enough to be visible to us. That is only a guess though.

Comment by sk8eycat on December 27, 2014 at 12:53pm

LMAO.....Benny probably has poor circulation, and his nose would freeze and fall right off, anyway.

PS: I'd like to ask Dr. Tyson if red penetrates fog the best, why are fog lights on cars yellow.  Second best?

Comment by Grinning Cat on December 27, 2014 at 11:52am

Santa knows Physics: Of all colors, Red Light penetrates fog best. That's why Benny the Blue-nosed reindeer never got the gig

— Neil deGrasse Tyson (@neiltyson) December 25, 2014

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