HDTV is the future

well, how long before we hear of plants screaming again..
Brian

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Brian Gaff -
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"Ivan" wrote in message
om...
I read an item a few months ago where it was discovered that crabs didn't
like being electrocuted, in fact they positively went out of their way to
try and avoid it happening, apparently this came as a surprise to the
researchers as they didn't realise the crabs can feel pain.. lack of a
nervous system and all that..



"Brian Gaff" wrote in message
...
All seems very fishy to me.

Brian

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"Max Demian" wrote in message
...
"Ken Tukyfriedturkey" wrote in message
...
for one octopussy at least.

http://news.bbc.co.uk/earth/hi/earth...00/8572828.stm

I expect that if octopuses had invented TV they would have found a way
to make them with a similar bandwidth to SD. It doesn't prove that they
have better vision than humans - just different.

Having said that, at least their retinas are wired up in a more sensible
way - from the rear rather than having the nerve fibres blocking the
light path with a consequent 'blind spot' and the need to route the
fibres around the fovea - also a useful refutation of 'intelligent
design'.

--
Max Demian

On Sun, 21 Mar 2010 12:26:34 GMT, "Ivan" wrote:

I read an item a few months ago where it was discovered that crabs didn't
like being electrocuted, in fact they positively went out of their way to
try and avoid it happening, apparently this came as a surprise to the
researchers as they didn't realise the crabs can feel pain.. lack of a
nervous system and all that..

I see.

This short article summarises the sensory nervous system of the horsehoe
crab:
http://www.horseshoecrab.org/anat/nerve4.html

The horseshoe crab has a remarkable number of cuticular receptors
that provide neural input to the nervous system. Probably the most
common to the limulus is the small cuticular peg sensillum. These
are found over the entire surface of the horseshoe and are
especially concentrated along the edges, ridges and spines of its
body. There are conservatively about 60,000 sensilla on the surface
of the prosoma and an additional 40,000 on the opithosoma and
appendages. These are what let the horseshoe "feel"
snip
...the horseshoe crab has about 7 million axons that allow it to
feel and sense the world around it.
endquote

I don't know whether those would be classified as pain sensors or touch
sensors, but even if the crab did not feel pain, electricity would give
it the impression of touching something most unusual and unfamiliar.

--
Peter Duncanson
(in uk.tech.digital-tv)

"Max Demian" wrote in message
...
"Ivan" wrote in message
om...
I read an item a few months ago where it was discovered that crabs didn't
like being electrocuted, in fact they positively went out of their way to
try and avoid it happening, apparently this came as a surprise to the
researchers as they didn't realise the crabs can feel pain.. lack of a
nervous system and all that..

They'll be saying next that they don't like having their claws ripped off
by biology students.



I was beginning to worry just in case I had dreamt the whole thing, however
'ere tis..

http://www.bbc.co.uk/blogs/today/tomfeilden/2009/03/a_blow_for_fans_of_boiled_lobs.html

"Martin" wrote in message
...
On Sun, 21 Mar 2010 18:00:24 GMT, "Ivan" wrote:



"Max Demian" wrote in message
...
"Ivan" wrote in message
om...
I read an item a few months ago where it was discovered that crabs
didn't
like being electrocuted, in fact they positively went out of their way
to
try and avoid it happening, apparently this came as a surprise to the
researchers as they didn't realise the crabs can feel pain.. lack of a
nervous system and all that..

They'll be saying next that they don't like having their claws ripped
off
by biology students.



I was beginning to worry just in case I had dreamt the whole thing,
however
'ere tis..

http://www.bbc.co.uk/blogs/today/tomfeilden/2009/03/a_blow_for_fans_of_boiled_lobs.html

"Not only do crabs and lobsters feel pain, they can remember it, and amend
their
behaviour as a result."

Once they have been plunged into boiling water they will avoid boiling
water
forever afterwards.

You know Martin, next time I buy a string bag of live muscles from Tesco to
take home and steam for tea, I'm now going to be suffering from a guilt
complex for days afterwards

Peter Duncanson wrote:

This short article summarises the sensory nervous system of the horsehoe
crab:

The horseshoe crab is _a_ _lot_ different to ordinary crabs. They've
been around at least twice as long.

Andy

"Andy Champ" wrote in message
...
Peter Duncanson wrote:

This short article summarises the sensory nervous system of the horsehoe
crab:

The horseshoe crab is _a_ _lot_ different to ordinary crabs. They've been
around at least twice as long.

They're not even crustaceans. They're more closely related to spiders than
crabs. (What do they teach kids these days?)

--
Max Demian

"Martin" wrote in message
...
On Sun, 21 Mar 2010 18:53:31 GMT, "Ivan" wrote:



"Martin" wrote in message
. ..
[...]

"Not only do crabs and lobsters feel pain, they can remember it, and
amend
their
behaviour as a result."

Once they have been plunged into boiling water they will avoid boiling
water
forever afterwards.

You know Martin, next time I buy a string bag of live muscles from Tesco
to
take home and steam for tea, I'm now going to be suffering from a guilt
complex for days afterwards

Have you tried mussels?

No, he means a *very* fresh beefsteak.

--
Max Demian