Dictionary » S » Span

Span

span

1. (Science: anatomy) The space from the thumb to the end of the little finger when extended; nine inches; eighth of a fathom.

2. Hence, a small space or a brief portion of time. Yet not to earth's contracted span thy goodness let me bound. (pope) Life's but a span; I'll every inch enjoy. (Farquhar)

3. The spread or extent of an arch between its abutments, or of a beam, girder, truss, roof, bridge, or the like, between its supports.

4. A rope having its ends made fast so that a purchase can be hooked to the bight; also, a rope made fast in the center so that both ends can be used.

5. A pair of horses or other animals driven together; usually, such a pair of horses when similar in colour, form, and action. Span blocks, a large bolt driven through the forecastle deck, with a triangular shackle in the head to receive the heel of the old-fashioned fish davit.

Origin: AS. Spann; akin to D. Span, OHG. Spanna, G. Spanne, Icel. Sponn. See Span.


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living forever

... of complex regulatory pathways. That's why you can administer small molecule inhibitors such as rosveratrol and rapamycin which lengthen life-span and retard aging. This is still a very active field, but i think we can tell for sure it's not just wearing out of the machinery.

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by MrMistery
Thu Sep 03, 2009 1:46 pm
 
Forum: Cell Biology
Topic: living forever
Replies: 4
Views: 49

living forever

... your own good? This being said, the nature does have means to make organisms live much longer. Whilst over 99% animal species have shorter life span than humans, there are some animals that easily surpass us. For example, I read that they recently discovered that some deep sea clams may live ...

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by biohazard
Wed Sep 02, 2009 6:03 am
 
Forum: Cell Biology
Topic: living forever
Replies: 4
Views: 49

Re: Re:

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by parth88
Thu Aug 13, 2009 9:31 am
 
Forum: Cell Biology
Topic: efficiency of body cells
Replies: 7
Views: 201

Re: Re:

... that could there be rogue cells that waste energy and resources so much that the organism (i.e. the human body) would suffer during a long time span, even though we cannot detect anything being wrong at any single time point. This could mean something like wasting or increased infection rates ...

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by biohazard
Thu Aug 13, 2009 9:04 am
 
Forum: Cell Biology
Topic: efficiency of body cells
Replies: 7
Views: 201

Natural selection wrong due to cambrian explosion

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by gamila
Mon Jul 20, 2009 10:44 am
 
Forum: Evolution
Topic: Natural selection wrong due to cambrian explosion
Replies: 29
Views: 894
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