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The ¬NED pin goes low on detection of a nuclear detonation [pdf]

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Re: The ¬NED pin goes low on detection of a nuclear detonation [pdf]

#51

Post by tlb »

pjscott wrote: post #7
JonnieCache wrote: post #4

Earlier quoted context omitted.

"FOR SPACE" Holy shit. So this is to protect your orbital weapons platform from EMP blasts?

Or anything you feel like putting in space, that you worry might be near a nuclear explosion or other source of intense ionizing radiation at some point. Be prepared, as the boy scouts say. I assume that maxim goes double in space, considering how expensive it is to put things up there in the first place.

What is the probability, over the next 10 years. It might be worth it for server farms, even if the probability of a nuclear EMP is only 1%.

Re: The ¬NED pin goes low on detection of a nuclear detonation [pdf]

#52

Post by elliottkember »

pjscott wrote: post #21
sjwright wrote: post #16

Earlier quoted context omitted.

You're physically uncomfortable about indefinite 1999-esque partying? Do you have something better to do when !ned_pin?

Of course! When the !NED pin goes low, duck and cover like it's 1959. (Fun fact: in a fairly large portion of the blast radius of a nuclear bomb, the main danger for people indoors is falling debris and broken glass from the pressure waves. Duck and cover actually works.)

So hiding in a fridge might actually save you?

Re: The ¬NED pin goes low on detection of a nuclear detonation [pdf]

#53

Post by saalweachter »

pjscott wrote: post #21
sjwright wrote: post #16

Earlier quoted context omitted.

You're physically uncomfortable about indefinite 1999-esque partying? Do you have something better to do when !ned_pin?

Of course! When the !NED pin goes low, duck and cover like it's 1959. (Fun fact: in a fairly large portion of the blast radius of a nuclear bomb, the main danger for people indoors is falling debris and broken glass from the pressure waves. Duck and cover actually works.)

The TED talk on surviving a nuclear blast: http://www.ted.com/talks/irwin_redlener_warns_of_nuclear_ter...

Instructions start at around minute 18.

Re: The ¬NED pin goes low on detection of a nuclear detonation [pdf]

#54

Post by ramchip »

InclinedPlane wrote: post #37
samfoo wrote: post #32

Earlier quoted context omitted.

I'm fairly certain that ICBM's use inertial guidance with predefined/computed coordinates ( http://en.wikipedia.org/wiki/Inertial_guidance ). There's no software involved, its all physical. Detonation is (probably) trigged by a combination of altimeter, accelerometer and other telemetry systems.

Yeah, GPS doesn't work so well through the plasma sheath around a reentry vehicle. And you don't have a whole lot of time to acquire GPS lock, or steer, when you're still traveling at hypersonic speeds and it takes maybe half a minute to hit the ground after first encountering the upper atmosphere.

Oelewapperke posted a long and detailed reply to this post, and yet it will go ignored because all his posts are automatically killed without him being aware of it. His posts may not be perfect, but I still find this kind of false positives terrible.

Re: The ¬NED pin goes low on detection of a nuclear detonation [pdf]

#55

Post by sbierwagen »

InclinedPlane wrote: post #37
samfoo wrote: post #32

Earlier quoted context omitted.

I'm fairly certain that ICBM's use inertial guidance with predefined/computed coordinates ( http://en.wikipedia.org/wiki/Inertial_guidance ). There's no software involved, its all physical. Detonation is (probably) trigged by a combination of altimeter, accelerometer and other telemetry systems.

Yeah, GPS doesn't work so well through the plasma sheath around a reentry vehicle. And you don't have a whole lot of time to acquire GPS lock, or steer, when you're still traveling at hypersonic speeds and it takes maybe half a minute to hit the ground after first encountering the upper atmosphere.

oelewapperke: I hope you're reading this, because your reply to this comment is not visible. You've been hellbanned.

http://www.codinghorror.com/blog/2011/06/suspension-ban-or-h...

It happened 175 days ago, when you made an unwise comment about killing children. All your comments since then have not been visible, or upvotable. This is why you're supposed to put contact information in your profile.

I hesitated before posting this, since from your older comments you appear to be a bit of a reddit user, and the comment itself contains several significant technical errors regarding the design of nuclear weapons, (American nuclear weapons haven't been of the "gun" type for 60 years now) which casts a poor light on the comment as a whole; but I don't think you're completely beyond hope.

Make a new account. Try not to be an asshole with it.

Re: The ¬NED pin goes low on detection of a nuclear detonation [pdf]

#56

Post by jrockway »

linuxlizard wrote: post #39

"not authorized for use as critical components in life support devices" Now try to imagine something using this part in such a way. /* NED low. Turn off life support. Insurance companies now vapor."

You, sir, have just voided the warranty.

Re: The ¬NED pin goes low on detection of a nuclear detonation [pdf]

#57

Post by stevenrace »

dmm wrote: post #5
geuis wrote: post #3

Here's a link to the product page, http://www.maxwell.com/products/microelectronics/product.asp... . Maxwell makes an entire array of microelectronics components. These are generally meant for use in devices that are deployed into space environments.

How much does this stuff cost?

Seems to be available for $150/ea @ http://rcfreelance.com

Re: The ¬NED pin goes low on detection of a nuclear detonation [pdf]

#58

Post by thechut »

InclinedPlane wrote: post #37
samfoo wrote: post #32

Earlier quoted context omitted.

I'm fairly certain that ICBM's use inertial guidance with predefined/computed coordinates ( http://en.wikipedia.org/wiki/Inertial_guidance ). There's no software involved, its all physical. Detonation is (probably) trigged by a combination of altimeter, accelerometer and other telemetry systems.

Yeah, GPS doesn't work so well through the plasma sheath around a reentry vehicle. And you don't have a whole lot of time to acquire GPS lock, or steer, when you're still traveling at hypersonic speeds and it takes maybe half a minute to hit the ground after first encountering the upper atmosphere.

Perhaps not for an ICBM, but GPS is definitely a possibility on a missile. You could even build a DIY one with this http://arduiniana.org/projects/the-reverse-geo-cache-puzzle/

Re: The ¬NED pin goes low on detection of a nuclear detonation [pdf]

#60

Post by chops »

ramchip wrote: post #54
InclinedPlane wrote: post #37

Earlier quoted context omitted.

Yeah, GPS doesn't work so well through the plasma sheath around a reentry vehicle. And you don't have a whole lot of time to acquire GPS lock, or steer, when you're still traveling at hypersonic speeds and it takes maybe half a minute to hit the ground after first encountering the upper atmosphere.

Oelewapperke posted a long and detailed reply to this post, and yet it will go ignored because all his posts are automatically killed without him being aware of it. His posts may not be perfect, but I still find this kind of false positives terrible.

It's not a false positive. He's hellbanned. Hellbanned users don't know they're hellbanned - their posts appear to them "not dead." If you look at his posting history, all of his posts starting 160 days ago are dead, and it seems to have started at a post from 175 days ago.
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