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Old 11-12-2014, 08:49 AM
 
Location: East Millcreek
2,222 posts, read 4,443,723 times
Reputation: 2275

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I refer to the mechanisms depicted in such movies as Robo-Cop, the combat chassis in Edge of Tomorrow, the "loaders" used in Aliens and the similar, though much larger and weaponized version, in Avatar. Prototypes already exist. Is there some fundamental reason that these things have not been operationalized? It seems like advances in robotics, materials science, prosthetic science and other technologies has advanced sufficiently for such exoskeletons to become a reality.

The only substantial barrier I see is the power source. The energy needed by such devices would be enormous to have a practical run time. The energy density of gasoline (which requires a very heavy engine) is about 44x that of the most efficient Li-ion battery and hydrogen is about 3.2x that of gasoline. Would a hydrogen/oxygen generator of some kind be sufficient? Uranium, as in a nuclear fission facility, has a specific energy density at least 100,000x that of hydrogen, but even the smallest nuclear generators seem like they'd be prohibitively large and heavy.

What energy density would be needed for such devices to become possible? What other advances would be required? Or is it just the will or the vision that we lack?

Last edited by kletter1mann; 11-12-2014 at 08:54 AM.. Reason: added reference
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Old 11-12-2014, 09:57 AM
 
338 posts, read 292,501 times
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Ever seen the way some of the crotch rocket people dress? Don't say that "combat exoskeletons" aren't possible. Just spend an hour or so in traffic on a decent day in any reasonably-sized city.
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Old 11-12-2014, 10:49 AM
 
Location: East Millcreek
2,222 posts, read 4,443,723 times
Reputation: 2275
Quote:
Originally Posted by ratchetjaw View Post
Ever seen the way some of the crotch rocket people dress? Don't say that "combat exoskeletons" aren't possible. Just spend an hour or so in traffic on a decent day in any reasonably-sized city.
They can wear their Mad Max costumes, but they're all show.
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Old 11-12-2014, 11:28 AM
 
48,526 posts, read 75,935,879 times
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Why not pure robots.
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Old 11-12-2014, 11:28 AM
 
1,390 posts, read 1,029,096 times
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Yeah, why are our genitalia still so vulnerable?
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Old 11-12-2014, 01:29 PM
 
15,924 posts, read 15,781,804 times
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Maybe because there isn't a real need for them?

We need more types of these:



robot gun turrets: deadly from kilometers away

South Korea's autonomous robot gun turrets: deadly from kilometers away
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Old 11-18-2014, 07:26 PM
 
48,526 posts, read 75,935,879 times
Reputation: 17832
I was surprised to learn that Musk warned the other day about robots and their treat as to killing human on their own.
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