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(Tech Crunch)   Physics, it's the law. Even with programmable magnets that change polarity and strength on a whim   (techcrunch.com) divider line 38
    More: Cool, physics, CMR, magnets, magnetics  
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3389 clicks; posted to Geek » on 22 Mar 2014 at 2:56 PM (23 weeks ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



38 Comments   (+0 »)
   
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2014-03-22 01:04:15 PM
icpmagnets.jpg
 
2014-03-22 01:12:57 PM

antidisestablishmentarianism: icpmagnets.jpg


ecx.images-amazon.com

I'm very attracted to their catalog
 
2014-03-22 01:18:44 PM
Seriously, that is pretty damn neat. I am curious what the service life and torque handling ability would be for a frictionless gear.
 
2014-03-22 01:56:44 PM
Lisa, in this house we obey the laws of thermodynamics
 
2014-03-22 03:10:53 PM

antidisestablishmentarianism: Seriously, that is pretty damn neat. I am curious what the service life and torque handling ability would be for a frictionless gear.


sat wondering the same.

Such a great concept with many applications - the next i thought of was for security door locks, then LEGO tech, and
then I got distracted for a while thinking of the neat rube goldberg you could build with them.
 
2014-03-22 03:17:28 PM
Ok... Cool Tag completely justified.

/Wondering what the Navy wants with them
 
2014-03-22 03:28:51 PM

diaphoresis: Ok... Cool Tag completely justified.

/Wondering what the Navy wants with them


Super silent submarines or ships?
 
2014-03-22 03:34:40 PM

antidisestablishmentarianism: diaphoresis: Ok... Cool Tag completely justified.

/Wondering what the Navy wants with them

Super silent submarines or ships?


Rail guns. Rapid fire continuously without overheating makes for an ideal point defense system. Also, naval guns fire huge shells that take a while to load; creating rail guns that can fire the same size shells speeds up the firing time as well as cutting down the weight from the propellant you no longer need.
 
2014-03-22 03:50:20 PM

RoyFokker'sGhost: Rail guns.


A guy I work with had a hand in this project.
 
2014-03-22 03:53:16 PM

RoyFokker'sGhost: antidisestablishmentarianism: diaphoresis: Ok... Cool Tag completely justified.

/Wondering what the Navy wants with them

Super silent submarines or ships?

Rail guns. Rapid fire continuously without overheating makes for an ideal point defense system. Also, naval guns fire huge shells that take a while to load; creating rail guns that can fire the same size shells speeds up the firing time as well as cutting down the weight from the propellant you no longer need.


www.wearysloth.com
Railguns, always with the railguns...
 
2014-03-22 03:54:48 PM

RoyFokker'sGhost: antidisestablishmentarianism: diaphoresis: Ok... Cool Tag completely justified.

/Wondering what the Navy wants with them

Super silent submarines or ships?

Rail guns. Rapid fire continuously without overheating makes for an ideal point defense system. Also, naval guns fire huge shells that take a while to load; creating rail guns that can fire the same size shells speeds up the firing time as well as cutting down the weight from the propellant you no longer need.


I had to look that up (never claimed to know everything). That would be completely awessome.
 
2014-03-22 04:04:31 PM
You mean electro-magnets?
 
2014-03-22 04:11:01 PM

cretinbob: You mean electro-magnets?


The article implies not.
 
2014-03-22 04:19:05 PM

diaphoresis: RoyFokker'sGhost: antidisestablishmentarianism: diaphoresis: Ok... Cool Tag completely justified.

/Wondering what the Navy wants with them

Super silent submarines or ships?

Rail guns. Rapid fire continuously without overheating makes for an ideal point defense system. Also, naval guns fire huge shells that take a while to load; creating rail guns that can fire the same size shells speeds up the firing time as well as cutting down the weight from the propellant you no longer need.

I had to look that up (never claimed to know everything). That would be completely awessome.


Even bigger, once the system has more of the kinks worked out, we can move on to man-portable rail guns. Lighter, more accurate, and virtually silent.
 
2014-03-22 04:48:52 PM
Unjust laws are made to be broken.
 
2014-03-22 05:04:21 PM

cretinbob: You mean electro-magnets?


No, these are solid magnets, with specially designed/printed magnetic regions to achieve desired effects, such as frictionless magnetic field gears, magnets that attract at long range but repel up close, and magnets that repel at long range but attract up close.
 
2014-03-22 06:19:25 PM
Also, hover cars, and even faster, and cheaper mag lev trains. No more derailing because of crap on the track.
 
2014-03-22 06:30:01 PM

diaphoresis: Ok... Cool Tag completely justified.

/Wondering what the Navy wants with them


Submarine lockers that don't slam?
 
2014-03-22 06:34:27 PM

RoyFokker'sGhost: Lighter, more accurate, and virtually silent.


img.fark.net
 
2014-03-22 07:06:09 PM
static.ddmcdn.com
What?  The very idea!
 
2014-03-22 08:03:00 PM
I read about these a few months back, before they'd started printing them in solid units. The one that really caught my eye was the rotationally sensitive 'lock' where the north/south regions lined up in such a way that the magnets would only stick together when at a specific orientation relative to each other.
 
2014-03-22 08:23:39 PM

antidisestablishmentarianism: Seriously, that is pretty damn neat. I am curious what the service life and torque handling ability would be for a frictionless gear.


I was thinking what sort of efficiency gains could be made by using gears like this.
 
2014-03-22 09:06:40 PM
wake me when we can stop using gunpowder and brass casings and can switch to railguns.
 
2014-03-22 09:42:27 PM

Kit Fister: wake me when we can stop using gunpowder and brass casings and can switch to railguns.


Not really going to be aided in any way by this particular breakthrough, railguns are dependent on electromagnets. These are something else entirely.

Also, you're going to be waiting quite a while for man portable railguns capable of putting slugs down range that will do any damage.
 
2014-03-22 10:05:29 PM

iq_in_binary: Kit Fister: wake me when we can stop using gunpowder and brass casings and can switch to railguns.

Not really going to be aided in any way by this particular breakthrough, railguns are dependent on electromagnets. These are something else entirely.

Also, you're going to be waiting quite a while for man portable railguns capable of putting slugs down range that will do any damage.


Well, fine, caseless ammo or energy guns. Yeesh
 
2014-03-22 10:10:07 PM

iq_in_binary: Also, you're going to be waiting quite a while for man portable railguns capable of putting slugs down range that will do any damage.


Yeah, only Japan has those so far:

s24.postimg.org
 
2014-03-22 11:00:22 PM
*scratched head*

Now tell me again how this could not be made into a virtual perpetual motion machine again?

www.metlx.com
imagine the holes as magnets
and a corresponding spiral magnet bullet
 
2014-03-22 11:09:54 PM

mr lawson: Now tell me again how this could not be made into a virtual perpetual motion machine again?


If you actually had a static magnet that was doing work in a "perpetual motion" machine, what would happen is the magnet would weaken over time, because you'd be pulling energy out of its magnetic field.  Even magnets obey the conservation of energy.
 
2014-03-22 11:15:05 PM

Sum Dum Gai: If you actually had a static magnet that was doing work in a "perpetual motion" machine, what would happen is the magnet would weaken over time, because you'd be pulling energy out of its magnetic field.  Even magnets obey the conservation of energy.


That much I get, hence virtual. But this could be a hell of a way to "store" energy.
 
2014-03-22 11:20:47 PM

Pentaxian: antidisestablishmentarianism: Seriously, that is pretty damn neat. I am curious what the service life and torque handling ability would be for a frictionless gear.

I was thinking what sort of efficiency gains could be made by using gears like this.


Right, frictionless gears are going to gain you some efficiency by eliminating friction losses.
 
2014-03-22 11:44:31 PM
associatesmind.com
says there can only be one...
 
2014-03-23 12:02:10 AM

LrdPhoenix: cretinbob: You mean electro-magnets?

No, these are solid magnets, with specially designed/printed magnetic regions to achieve desired effects, such as frictionless magnetic field gears, magnets that attract at long range but repel up close, and magnets that repel at long range but attract up close.


I often reply, then click.

Been waitng for someone to figure this out, glad to see it happened
 
2014-03-23 12:11:43 AM
holy crap....this is even more amazing (check out the second demo in the clip)
These guys rock!
 
2014-03-23 05:17:28 AM
This is nothing more than a pyramid scheme.

Multi-level magnetism.
 
2014-03-23 07:23:52 AM

diaphoresis: RoyFokker'sGhost: antidisestablishmentarianism: diaphoresis: Ok... Cool Tag completely justified.

/Wondering what the Navy wants with them

Super silent submarines or ships?

Rail guns. Rapid fire continuously without overheating makes for an ideal point defense system. Also, naval guns fire huge shells that take a while to load; creating rail guns that can fire the same size shells speeds up the firing time as well as cutting down the weight from the propellant you no longer need.

I had to look that up (never claimed to know everything). That would be completely awessome.


Don't you mean.. guassome?
 
2014-03-23 01:03:47 PM

mr lawson: holy crap....this is even more amazing (check out the second demo in the clip)
These guys rock!


Relevant to my interests as I have a steel sailboat and already use magnets (away from the compass, obviously) for temporary hooks and whatnot.
 
2014-03-23 01:07:20 PM
I wonder if this is related to the company in Huntsville that is doing this.  Because there is a company in Huntsville that is doing this.  Huntsville.
 
2014-03-23 01:35:39 PM

flamark: I wonder if this is related to the company in Huntsville that is doing this.  Because there is a company in Huntsville that is doing this.  Huntsville.


Are they anywhere near Huntsville? Because that right there would be something worth talking about, if it were true and all
 
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