Here's a wild idea for announcing to the galaxy that we are here. Take all of our nuclear weapons (everybody's) and launch them out to a safe distance. Then detonate them one at a time with a pattern, say groups that represent the primes. First one, then a pair, then three, then five, etc up to twenty nine and then repeat until all the weapons have been used. Even if nobody responds we won't have to worry about nuking each other for a while ;)

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Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.

You don't think the radiation from the blasts would be detectable out to at least 50LY? I would think they would be noticed much further out.

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Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.

I humbly suggest to use a Fibonacci series of numbers.It is found in nature.
Tullio

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From http://en.wikipedia.org/wiki/Nuclear_fusion:

In its core, the Sun fuses 620 million metric tons of hydrogen each second.

The ~92000000 mile radius of Earth's orbit is basically nothing when observed from astronomical distances. The puny blip of exploding all of the existing nuclear warheads simultaneously might possibly be detected by extremely sensitive instruments looking for exactly that kind of incident, but IMO just a few at a time could not.

                                                                   Joe

Actually, no one knows what a man made nuclear explosion would do out in space. At least officially, it has never been done.

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Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.

I think America exploded one small A-bomb in space but then signed and agreement with the Soviet Union which forbade such experiments and ended the Orion project of a nuclear explosions powered spacecraft. See Freeman J. Dyson, in "Disturbing the universe" on the Orion project.
Tullio

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The bombs were exploded at an altitude of 250 miles and little accurate data was obtained due to the underestimation of the potential effects. The size of the warheads were between 1.4 and 1.5 megatons. The tests were cut short due to the pending test ban treaty. So any figures relating to the impact of a nuclear explosion out in open space, say at the orbit of jupiter is purely speculation. I admit I have no idea regarding how far away such an explosion would be detectable and I also don't know whether it would be a good idea to try to attract ET's attention in such a manner.

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Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.

I think America exploded one small A-bomb in space but then signed and agreement with the Soviet Union which forbade such experiments and ended the Orion project of a nuclear explosions powered spacecraft. See Freeman J. Dyson, in "Disturbing the universe" on the Orion project.
Tullio

It's all good and well saying read this/the other book (which perhaps people don't have sitting on their bookshelf) but this being the internet how about doing a google and posting a link or two.

The wiki on high altitude nuclear explosions.

NASA's Nuclear weapons effects in space.

There's even a huffpost on it.

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Member of the People Encouraging Niceness In Society club.

A book is something durable. All Internet and Wikipedia posts are changing every day and maybe not so accurate. I still believe in books.
Tullio

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http://ase.tufts.edu/cosmos/view_overview.asp?id=27

The relatively calm solar atmosphere can be torn asunder by sudden, brief outbursts called solar flares, the most powerful explosions in the solar system. In 100 to 1,000 seconds, they release energy equivalent to millions of 100-megaton hydrogen bombs exploding at the same time, and raise the temperature of Earth-sized regions in the low corona up to 20 million kelvin.

Your proposed signal has to be brighter, or it gets lost as noise.

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Here's a wild idea for announcing to the galaxy that we are here. Take all of our nuclear weapons (everybody's) and launch them out to a safe distance. Then detonate them one at a time with a pattern, say groups that represent the primes. First one, then a pair, then three, then five, etc up to twenty nine and then repeat until all the weapons have been used. Even if nobody responds we won't have to worry about nuking each other for a while ;)

Preferbly in Asteroid belt...so we get blown in pieces by the debris, by the time the message arrrives back? :/

Also, what message will that post to Aliens?
Here ARE some FOLKS who like to BLOW things up, nuclear style...wanna bake a cake & meet the new neighbours? LoL
:D

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non-profit org. Play4Life in Zagreb, Croatia, EU

Well personally I think we should hope to remain undiscovered by any alien intelligence for quite a while longer. I don't think we are alone but hopefully we are isolated and far away from other civilizations.

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Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.

Well personally I think we should hope to remain undiscovered by any alien intelligence for quite a while longer. I don't think we are alone but hopefully we are isolated and far away from other civilizations.

Even if land on Mars & start colony there...a signal will travel 3 - 21 min, depending on the Earth to Mars orbits...

quite far!

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non-profit org. Play4Life in Zagreb, Croatia, EU