*sigh* I miss Az. As a fan of both the desert, and astronomy, I heartily approve this image.
paulburnettsays
chrispollard (#4) wrote: “No but the rib spacing on the cacti surface has evolved to minimize air drag so they don’t get blown over so easily.”
The “ribs” are actually expansion pleats so the cactus can swell up when it’s wet, and then shrink when it’s dry. (The big cetaceans have expansion pleats in their chins, for their lunge-feeding “big gulp.”)
cybercmdrsays
Reading this blog sensitizes you to a lot of the creationist arguments, or at least to what they use for logic. The casual association within the picture makes me think of their inference process.
Cacti point at the heavens. Therefore, they are astronomers.
'Tis Himself says
Your evidence for this claim is what?
A. R says
You’d better not let Mr. Frothy see this, he might declare it to be
.jasonnishiyama says
But do you think astronomers are prickly?
chrispollard says
No but the rib spacing on the cacti surface has evolved to minimize air drag so they don’t get blown over so easily.
Markita Lynda—it's Spring after the Winter that wasn't says
Very pretty!
Ms. Daisy Cutter, Gynofascist in a Spiffy Hugo Boss Uniform says
Ribbed… for your lack of pleasure!
fastlane says
*sigh* I miss Az. As a fan of both the desert, and astronomy, I heartily approve this image.
paulburnett says
chrispollard (#4) wrote: “No but the rib spacing on the cacti surface has evolved to minimize air drag so they don’t get blown over so easily.”
The “ribs” are actually expansion pleats so the cactus can swell up when it’s wet, and then shrink when it’s dry. (The big cetaceans have expansion pleats in their chins, for their lunge-feeding “big gulp.”)
cybercmdr says
Reading this blog sensitizes you to a lot of the creationist arguments, or at least to what they use for logic. The casual association within the picture makes me think of their inference process.
Cacti point at the heavens. Therefore, they are astronomers.
X happened. Therefore God.
Same process, just as useful.
Sili says
Enough with this fake Latin!
It’s cactodes! Get it right, you Philistines!
Markita Lynda—it's Spring after the Winter that wasn't says
A rope wrapped in a spiral around a larger cable or a “spiral staircase” around a chimney also reduces drag.
Markita Lynda—it's Spring after the Winter that wasn't says
…by reducing air turbulence.