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(Gizmodo)   Old & busted: Streetlights. New hotness: Dead pixels   (gizmodo.com ) divider line
    More: Obvious, UFO, dead pixels, street lights  
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4131 clicks; posted to Geek » on 22 Aug 2012 at 1:10 PM (4 years ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



20 Comments     (+0 »)
 
View Voting Results: Smartest and Funniest
 
2012-08-22 12:26:36 PM  
Usually you don't see them because they get mixed with the noise of Earth's atmosphere

First off, photon collection has noise no matter what the photon source is. It has nothing to do with the atmosphere.
Secondly, you don't see them because the camera detects dead pixels, and interpolates their value instead of using the measured value.
 
2012-08-22 01:11:18 PM  
Why would one assume that Martians have the same kinds of fingers and feet as humans?
 
2012-08-22 01:14:49 PM  
Wow, the linked video might be one of the stupidest things I've ever seen. It's got to be a joke, right? Hey, look, here's a rock that kind of looks like a human finger. It's gotta be a finger, right? I mean, you never find rocks that look like fingers on Earth. Oh, and here's a flat rock, that's gotta be a shoe... and on, and on...
 
2012-08-22 01:29:55 PM  
Why can't it be a Martian streetlight? They'd want to see at night too.

Unless they can see in the dark!

/Dum dum daaaaaahhhhh!
 
2012-08-22 01:49:47 PM  
Wow, those weather balloons really get around.
 
2012-08-22 02:10:09 PM  
Dead pixels ? 

imgs.xkcd.com
 
2012-08-22 03:04:04 PM  

malle-herbert: Dead pixels ? 

[imgs.xkcd.com image 640x199]


Not sure I get it? Those little floaty things in the eye?
 
2012-08-22 03:11:42 PM  

FloydA: Why would one assume that Martians have the same kinds of fingers and feet as humans?


Because function influences form. Across all intelligent, tool using life forms there will be some similarities. Aliens with tentacle arms might exist, and they might be rather intelligent but they probably won't build functioning computers because their appendages aren't up to the task. Because the loonies referred to in TFA are looking for the space faring kind of alien we can assume that they have at least somewhat similar appendages for manipulating tools.

As for the feet? Who knows.
 
2012-08-22 03:12:48 PM  

impaler: malle-herbert: Dead pixels ? 

[imgs.xkcd.com image 640x199]

Not sure I get it? Those little floaty things in the eye?


I always assumed XKCD was talking about the stars.
 
2012-08-22 03:18:06 PM  

DerAppie: I always assumed XKCD was talking about the stars.


Those would be "hot pixels" though.
 
2012-08-22 03:54:36 PM  

impaler: DerAppie: I always assumed XKCD was talking about the stars.

Those would be "hot pixels" though.


Look close at the picture. There are two red and one cyan or green dots in the sky, above the trees on the right.
 
2012-08-22 04:00:50 PM  

FloydA: Look close at the picture. There are two red and one cyan or green dots in the sky, above the trees on the right.


Now I'm even more confused.
 
2012-08-22 04:18:55 PM  

impaler: FloydA: Look close at the picture. There are two red and one cyan or green dots in the sky, above the trees on the right.

Now I'm even more confused.


They form a triangle... I am guessing its a UFO joke in there.
 
2012-08-22 04:37:31 PM  

DerAppie: Because function influences form. Across all intelligent, tool using life forms there will be some similarities. Aliens with tentacle arms might exist, and they might be rather intelligent but they probably won't build functioning computers because their appendages aren't up to the task.


But human appendages are too big to build the tiny components in functioning computers. I guess we can build great big robotic machines with the ability to manufacturer on such a micro-scale. But those robotic machines would probably be very large and very heavy. Our small weak bodies couldn't possibly construct the great big robotic machines needed to manufacturer and assemble little tiny things. Rinse and repeat....
 
2012-08-22 05:10:36 PM  

SlodaMan: DerAppie: Because function influences form. Across all intelligent, tool using life forms there will be some similarities. Aliens with tentacle arms might exist, and they might be rather intelligent but they probably won't build functioning computers because their appendages aren't up to the task.

But human appendages are too big to build the tiny components in functioning computers.


Which is why we use tools.

I guess we can build great big robotic machines with the ability to manufacturer on such a micro-scale. But those robotic machines would probably be very large and very heavy.

so we use tools

Our small weak bodies couldn't possibly construct the great big robotic machines needed to manufacturer and assemble little tiny things. Rinse and repeat....


Tools, tools, tools, tools. (t'ool)

There was a reason I mentioned tool using. Size and strength can be compensated by crude tools which can be used to build better tools which can be used to build even better tools. How you use those tools are rather vital at the bottom of the tech tree. There you'll start seeing some forms which infer the minimum required amount of strength, dexterity, grip and versatility needed to make and use tools. (Most) Jellyfish will never use a hammer because they aren't strong/sturdy enough to lift one, ants could use their mandibles as hammer or use the mandible to use a hammer but they'll suck at using screwdrivers. Crows might be smart enough to use a piece of metal to get to food yet they only have their beak to work with unless they stand on one leg the entire time.

Some form of dedicated hand (My guess is you'll need at least 3 fingers) is simply superior. Now that I think about it some more, tentacles might work. The octopus variety are very dexterous and pretty strong with suction cups for grip. 

/Horses will still suck at tools and technology
 
2012-08-22 05:20:02 PM  

DerAppie: SlodaMan: DerAppie: Because function influences form. Across all intelligent, tool using life forms there will be some similarities. Aliens with tentacle arms might exist, and they might be rather intelligent but they probably won't build functioning computers because their appendages aren't up to the task.

But human appendages are too big to build the tiny components in functioning computers.

Which is why we use tools.

I guess we can build great big robotic machines with the ability to manufacturer on such a micro-scale. But those robotic machines would probably be very large and very heavy.

so we use tools

Our small weak bodies couldn't possibly construct the great big robotic machines needed to manufacturer and assemble little tiny things. Rinse and repeat....

Tools, tools, tools, tools. (t'ool)

There was a reason I mentioned tool using. Size and strength can be compensated by crude tools which can be used to build better tools which can be used to build even better tools. How you use those tools are rather vital at the bottom of the tech tree. There you'll start seeing some forms which infer the minimum required amount of strength, dexterity, grip and versatility needed to make and use tools. (Most) Jellyfish will never use a hammer because they aren't strong/sturdy enough to lift one, ants could use their mandibles as hammer or use the mandible to use a hammer but they'll suck at using screwdrivers. Crows might be smart enough to use a piece of metal to get to food yet they only have their beak to work with unless they stand on one leg the entire time.

Some form of dedicated hand (My guess is you'll need at least 3 fingers) is simply superior. Now that I think about it some more, tentacles might work. The octopus variety are very dexterous and pretty strong with suction cups for grip. 

/Horses will still suck at tools and technology


You might want to get your sarcasm meter needs calibration.
 
2012-08-22 05:21:04 PM  

naz-drala: DerAppie: SlodaMan: DerAppie: Because function influences form. Across all intelligent, tool using life forms there will be some similarities. Aliens with tentacle arms might exist, and they might be rather intelligent but they probably won't build functioning computers because their appendages aren't up to the task.

But human appendages are too big to build the tiny components in functioning computers.

Which is why we use tools.

I guess we can build great big robotic machines with the ability to manufacturer on such a micro-scale. But those robotic machines would probably be very large and very heavy.

so we use tools

Our small weak bodies couldn't possibly construct the great big robotic machines needed to manufacturer and assemble little tiny things. Rinse and repeat....

Tools, tools, tools, tools. (t'ool)

There was a reason I mentioned tool using. Size and strength can be compensated by crude tools which can be used to build better tools which can be used to build even better tools. How you use those tools are rather vital at the bottom of the tech tree. There you'll start seeing some forms which infer the minimum required amount of strength, dexterity, grip and versatility needed to make and use tools. (Most) Jellyfish will never use a hammer because they aren't strong/sturdy enough to lift one, ants could use their mandibles as hammer or use the mandible to use a hammer but they'll suck at using screwdrivers. Crows might be smart enough to use a piece of metal to get to food yet they only have their beak to work with unless they stand on one leg the entire time.

Some form of dedicated hand (My guess is you'll need at least 3 fingers) is simply superior. Now that I think about it some more, tentacles might work. The octopus variety are very dexterous and pretty strong with suction cups for grip. 

/Horses will still suck at tools and technology

You might want to get your sarcasm meter needs calibration calibrated.


FTFM
 
2012-08-22 05:23:12 PM  

DerAppie: SlodaMan: DerAppie: Because function influences form. Across all intelligent, tool using life forms there will be some similarities. Aliens with tentacle arms might exist, and they might be rather intelligent but they probably won't build functioning computers because their appendages aren't up to the task.

But human appendages are too big to build the tiny components in functioning computers.

Which is why we use tools.

I guess we can build great big robotic machines with the ability to manufacturer on such a micro-scale. But those robotic machines would probably be very large and very heavy.

so we use tools

Our small weak bodies couldn't possibly construct the great big robotic machines needed to manufacturer and assemble little tiny things. Rinse and repeat....

Tools, tools, tools, tools. (t'ool)

There was a reason I mentioned tool using. Size and strength can be compensated by crude tools which can be used to build better tools which can be used to build even better tools. How you use those tools are rather vital at the bottom of the tech tree. There you'll start seeing some forms which infer the minimum required amount of strength, dexterity, grip and versatility needed to make and use tools. (Most) Jellyfish will never use a hammer because they aren't strong/sturdy enough to lift one, ants could use their mandibles as hammer or use the mandible to use a hammer but they'll suck at using screwdrivers. Crows might be smart enough to use a piece of metal to get to food yet they only have their beak to work with unless they stand on one leg the entire time.

Some form of dedicated hand (My guess is you'll need at least 3 fingers) is simply superior. Now that I think about it some more, tentacles might work. The octopus variety are very dexterous and pretty strong with suction cups for grip. 

/Horses will still suck at tools and technology



Your point is valid- any space-faring alien will have to have some way to manipulate objects that incorporates both strength and precision, otherwise they will never succeed at tool-making.

I'm just not sure that "hand with fingers and fingernails" exhausts the range of possible solutions to that problem. There could be many other ways to reach the same solution, but we have a hard time imagining them because our own biology seems so "normal" to us.
 
2012-08-22 11:21:21 PM  
why is nobody talking about the 3 black dots that form a triangle in the video that doesn't move.

Holy crap there they are again, all over this page!!!!!

God i'm being invaded!!!!!!
 
2012-08-23 12:38:10 AM  

FloydA: Your point is valid- any space-faring alien will have to have some way to manipulate objects that incorporates both strength and precision, otherwise they will never succeed at tool-making.


Even that's not true. Nature makes very little use of mechanical tools and still builds fantastically complicated things -- it mostly makes use of the inherent properties of materials instead of brute-force manipulations. Why would I need to make a steam engine if I can synthesize an ion stream directly in my non-arm using a couple tiny chunks of metal and some salty water? Or if aliens existed on a significantly different scale -- larger or smaller -- "strength" and "precision" might have very different meanings than you imagine here.
 
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