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Cow Magnets

magnetsource.com

11–20 of 72 posts

Re: Cow Magnets

#11

Earlier quoted context omitted.

Seems easier to put a magnet in every cow than to comb every pasture, several times a year.

Seems easier, sure - but one modestly-robust drone, maybe a sort of lawnmower with caterpillar tracks, could happily roam around the pasture permanently, picking up ferrous debris and taking it back to a drop-off point for recycling.

I know, I'll use a drone! Now the cows are eating drone parts too!

Re: Cow Magnets

#12

Earlier quoted context omitted.

Seems easier, sure - but one modestly-robust drone, maybe a sort of lawnmower with caterpillar tracks, could happily roam around the pasture permanently, picking up ferrous debris and taking it back to a drop-off point for recycling.

Seems was a polite way of saying is . Even with a modestly-robust drone, there will be: - breakdowns - fuel costs (electrical or otherwise) - the need to run the task repeatedly , dealing with varying terrain and grazing cattle I'm as big a fan of drones and automation as the next guy, but it really is much simpler to just stick a magnet in every cow.

    ...it really is much simpler to just stick a magnet in every cow.
Is it though? If you have twenty cows, sure, I can believe that twenty magnets are simple and cheap - but what about 200? 2,000? And what happens when one of your cows turns out to have a larger than usual pyloric sphincter, and the magnet gets into its intestines? Or a wider than standard trachea, leading to it regurgitating the magnet when it tries to chew the cud?

Essentially what I'm envisaging is an outdoor Roomba that just gets left to do its own thing until it needs human assistance. Arable farming - at least at the larger end of the scale - is getting pretty comfortable with drone equipment, with driverless combine harvesters guided by GPS and similar things; livestock farmers are not going to be averse to it either (not least because farmers, in my experience, really dig flashy toys! :) ).

Re: Cow Magnets

#13

Earlier quoted context omitted.

Seems easier, sure - but one modestly-robust drone, maybe a sort of lawnmower with caterpillar tracks, could happily roam around the pasture permanently, picking up ferrous debris and taking it back to a drop-off point for recycling.

I know, I'll use a drone! Now the cows are eating drone parts too!

Perhaps we can build a drone that also self-assembles a protective carapace of grass around itself while it browses around for metal.

Alternatively, it could maybe shout "GO AWAY COWS" at random intervals.

Re: Cow Magnets

#14
Grew up on a farm in Scandinavia and have witness a few of these up close. The amount of debris they can accumulate is staggering - mostly nails, and corroded clumps of metal (probably from old farming equipment). There was nothing particular about the fields where their food came from, in fact it would be considered very clean, almost ecological. But hundreds of years of harvesting will leave a footprint. Also, in the earlier days when renovation was not set in system they used to bury their trash (what else could they do really).

Re: Cow Magnets

#15

Earlier quoted context omitted.

Seems was a polite way of saying is . Even with a modestly-robust drone, there will be: - breakdowns - fuel costs (electrical or otherwise) - the need to run the task repeatedly , dealing with varying terrain and grazing cattle I'm as big a fan of drones and automation as the next guy, but it really is much simpler to just stick a magnet in every cow.

...it really is much simpler to just stick a magnet in every cow. Is it though? If you have twenty cows, sure, I can believe that twenty magnets are simple and cheap - but what about 200? 2,000? And what happens when one of your cows turns out to have a larger than usual pyloric sphincter, and the magnet gets into its intestines? Or a wider than standard trachea, leading to it regurgitating the magnet when it tries t…

At $2 - $5 per magnet, (as listed on that website, you could probably get them cheaper if you're outfitting a herd of 2000+) you'd have to cut a lot of corners to build something that can traverse a populated pasture and pick up tiny bits of metal and still come out as an economical choice.

Re: Cow Magnets

#16

Earlier quoted context omitted.

Seems easier, sure - but one modestly-robust drone, maybe a sort of lawnmower with caterpillar tracks, could happily roam around the pasture permanently, picking up ferrous debris and taking it back to a drop-off point for recycling.

Seems was a polite way of saying is . Even with a modestly-robust drone, there will be: - breakdowns - fuel costs (electrical or otherwise) - the need to run the task repeatedly , dealing with varying terrain and grazing cattle I'm as big a fan of drones and automation as the next guy, but it really is much simpler to just stick a magnet in every cow.

I agree the robot is optimistic.

From the tiny amout of reading I've done cows eat hardware - nails, screws, and bits of wire that are accidentally left in feed troughs, or bits of wire from tires that are left in fields for some feed product.

Many cases of hardware disease would be a oided if there was some concentration on keeping those safe for cattle.

But maybe I'm guilty of armchair farming.

Re: Cow Magnets

#20

Earlier quoted context omitted.

Seems easier to put a magnet in every cow than to comb every pasture, several times a year.

Seems easier, sure - but one modestly-robust drone, maybe a sort of lawnmower with caterpillar tracks, could happily roam around the pasture permanently, picking up ferrous debris and taking it back to a drop-off point for recycling.

That's great until a cow eats your drone. Then you'll need a _really_ big magnet.

This probably isn't economically feasible yet, but I'm sure we'll see something like this in the next decade or two. And for that matter, such a drone could be cutting the grass or doing other similar jobs.

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