Engineering News Blog

Engineering News

Latest news of interest to engineers. Sourced from GlobalSpec's Engineering News

Previous in Blog: Nokia Begins Work on Graphene, World's Strongest Material   Next in Blog: Astronauts Will Watch Super Bowl from Space
Close
Close
Close
3 comments
Rate Comments: Nested

Swarm-Mongering: Brainless Blobs Flock Together

Posted February 01, 2013 9:49 AM

From New Scientist - Online news:

Swarming isn't just for fish, birds and biological creatures - plastic micro-blobs can do it too, thanks to a purely physical mechanism

Read the whole article and watch the video

Reply

Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Guru
Popular Science - Cosmology - Let's keep knowledge expanding Engineering Fields - Retired Engineers / Mentors - Hobbies - HAM Radio - New Member

Join Date: Dec 2006
Location: North America, Earth
Posts: 4528
Good Answers: 106
#1

Re: Swarm-Mongering: Brainless Blobs Flock Together

02/02/2013 11:51 AM

I hope CR4's aren't an example of that!

__________________
“I would rather have questions that can't be answered than answers that can't be questioned.” - Richard Feynman
Reply Score 1 for Good Answer
Guru
United Kingdom - Member - Not a New Member Hobbies - Musician - New Member Hobbies - Fishing - New Member

Join Date: May 2006
Location: Reading, Berkshire, UK. Going under cover.
Posts: 9684
Good Answers: 468
#2
In reply to #1

Re: Swarm-Mongering: Brainless Blobs Flock Together

02/02/2013 1:53 PM

Before reading the article I thought it was about the governing assembly of some - in fact any - country.

__________________
"Love justice, you who rule the world" - Dante Alighieri
Reply
Guru

Join Date: Mar 2012
Posts: 2189
Good Answers: 84
#3

Re: Swarm-Mongering: Brainless Blobs Flock Together

02/04/2013 12:22 PM

This behavior "does not possibly explain swarming behavior in fish or birds" any more than the attraction or repulsion of two magnets explains courting behavior in mammals.

The article goes on to say, "Their paper shows that shining a light on some of the fish in the school causes them to speed up, to get away from the light. But as a result, non-illuminated fish also speed up, even though, if acting purely as individuals, they would have had no reason to do so. "We show just by using simple interactions that schools can have a sense of responsiveness to the environment that individuals do not have," he (Iain Couzin of Princeton University) says."

These animals swarm as a means of ensuring their survival - a vastly different principle altogether. The non-illuminated portion of the school responds to the actions of the few illuminated fish because evolution equipped them to do so. The built-in assumption is "There's a threat, let us respond likewise and in a manner that eons of evolution has proved as being the one which ensures the highest rate of survival for all."

(sigh)

Reply
Reply to Blog Entry 3 comments

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Copy to Clipboard

Users who posted comments:

europium (1); JohnDG (1); StandardsGuy (1)

Previous in Blog: Nokia Begins Work on Graphene, World's Strongest Material   Next in Blog: Astronauts Will Watch Super Bowl from Space

Advertisement