Thursday, December 15, 2005

nephila maculata ...


spider silk is tough, stronger (upto 5oo % ) than steel and more elastic (up to 300 %) than anything else we can make is surely a humble reminder of the fact that nature created us and not the other way around.
amongst the most amazing and commonly admired webs are the various orb-webs, the largest orb-webs in the world are spun by spiders in the genus Nephila which may be 2 metres (6 ft) in diametre and are capable of catching small birds and bats, even though they dont eat them but large insects. "a typical strand of spider silk has a diametre of about 0.003 mm (0.00012 in) in diametre, compare this with silkworm silk which is 0.03 mm in diametre" or ten times as thinner. spider silk is made up of protein yet dont decay, wonder why ? it consists of an unusual substance which is quite acidic, so not attacked by bacteria or fungi, which is why cobwebs remain around for so long.

6 Comments:

Blogger rauf said...

we have been evolved thru the best of natural selection, i wonder why we don't posess the amazing qualities of the lesser beings, like 64 vertebrae for cats and we have only 32, speed of a cheeta, felexibility and venom of a snake and of course why we are not spidermen ? Why we have to learn yoga or karate to keep ourselves fit. Are we the best of creatures the nature made ? I see more fitness and common sense in lesser being than us.

6:09 PM  
Blogger rauf said...

Oh I forgot
Taptum lucidum
this is what I would like to have
the night vision of the cat

3:44 AM  
Blogger wildpic said...

rauf, i do wonder so many a times when am walking in the woods, seeing million things a day, not a single thing is out of logic, the colour, the shape, the smell, the divisions, inter-relation ... here am wondering why we act so much out of no-logic ... this is what happens when luxury happens !

10:02 AM  
Blogger wildpic said...

ays, wonderfull stuff that u got there ! thx, am happy too !

10:14 AM  
Blogger Dave said...

Love the spider pics man. Actually i like insect pictures a alot, just love checkin out the different types.

10:53 AM  
Blogger wildpic said...

thanks david, insects are an amazing group, fabulous designs, neverending to explore. postin a cicada next.

8:27 PM  

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