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Obstacle

Obstacle

That which stands in the way, or opposes; anything that hinders progress; a hindrance; an obstruction, physical or moral. If all obstacles were cut away. And that my path were even to the crown. (Shak)

Synonym: Impediment, obstruction, hindrance, difficulty. See Impediment, and obstruction.

Origin: f, fr. L. Obstaculum, fr. Obstare to withstand, oppose; ob (see ob-) _ stare to stand. See stand. And cf. Oust.


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Re: Electromagnetic fields generated by the human body

... hormonal system can get effect, etc What you say guys.... May I know know what is the exact point/reason for generation of this field. cont we obstacle with any technique ? waiting for your replay Thanks.

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by Ktea
Sun Oct 09, 2011 2:26 pm
 
Forum: Human Biology
Topic: Electromagnetic fields generated by the human body
Replies: 31
Views: 88411

Digestive System Evolution

... end up in the stomach? 2.How did cells come to genetically adapt to not being oxidized? By the way you ask the question, it seems like another obstacle that evolution has overcome. If it is an obstacle, I would like to know how evolution overcame that. Also, oxygen continues to exist in the ...

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by Tomn
Fri Oct 07, 2011 9:42 pm
 
Forum: Evolution
Topic: Digestive System Evolution
Replies: 60
Views: 80145

Re: Closed Ecosystem

... and hopefully utilizes the energy in our waste. Not to mention would hopefully provide food- Creating a 'Closed-Cell Ecosystem' is the biggest obstacle we have to space travel at this point..

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by twilliam384
Fri Sep 10, 2010 10:30 pm
 
Forum: Ecology
Topic: Closed Ecosystem
Replies: 3
Views: 7631

The man is the same as hundreds of millions of years ago

... road why so a lot of time was required for the restoration, the lost level? Probably, periodic return of this kind of cataclysms was the main obstacle for restoration of the lost civilization. And only through long millions years, stones have been transformed into sand, by means of a wind ...

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by valentindolzhenko
Fri Aug 20, 2010 4:32 pm
 
Forum: Evolution
Topic: The man is the same as hundreds of millions of years ago
Replies: 11
Views: 13454

Looking for advice regarding decapod microsurgery

... x .2mm) and are the perfect size. While I am comfortable working with a dissection microscope, getting used to forceps this small has been an obstacle. Even with a light touch the vas deferens slips through the tips, and the slightest bump against the carapace bends the tips. It's like trying ...

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by Tex
Fri Jan 22, 2010 4:05 am
 
Forum: General Discussion
Topic: Looking for advice regarding decapod microsurgery
Replies: 0
Views: 970
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