The LIGO interferometers, when operational, routinely pick up all manner of seismic activity from around the world. If it's underground and big enough the vibrations will travel and be detected after a suitable delay. The waves bounce about the Earth's interior and "focus" on the other side of the world, see here.
I'm pretty sure the last time the North Koreans tested a few years ago it was picked up. I forget the exact yield which was relatively small at ~ a couple of kilotons.
Cheers, Mike.
I have made this letter longer than usual because I lack the time to make it shorter ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
In the year 1960 when the Soviets tested their H-bombs in the Kamchatka peninsula I was working part time while still a student in the Institute of Physics at Trieste University. I was given the task to monitor the radioactivity of the atmosphere with a ionization chamber by aspiring air with a fan through a tissue pad, Then I put the pad under the ionization chamber window and measured the radioactivity. Those measurements were never made public but they were high.
Tullio
In the year 1960 when the Soviets tested their H-bombs in the Kamchatka peninsula
Hi Tullio,
Is that where they tested the Tsar Bomba ? The potentially 100 megaton
bomb. I think they reduced it to 50 or 57 MT for the test.
Regards,
Bill
The treaty which ended the American and Russian atmospheric explosions was the main result of the Kennedy/Kruscev era and was signed in 1963. Cheers.
Tullio
In the year 1960 when the Soviets tested their H-bombs in the Kamchatka peninsula
Hi Tullio,
Is that where they tested the Tsar Bomba ? The potentially 100 megaton
bomb. I think they reduced it to 50 or 57 MT for the test.
Regards,
Bill
That one was on Novaya Zemlya ( arctic sea island ) as I recall. Topped out at ~ 55 + M ( Mentioned obliquely in the movie 'Dr Strangelove' )
I think USA had ( or have ) a bomb ( deuterium-tritium boosting ) which could exceed that but was never tested to capacity. The dial-a-yield bomb was based on the idea that you could use boosting to enhance yield OR reduce physical bomb size for a given yield. And hence the concept that one could 'limit' a nuclear war, or raise the odds in a conventional one, by 'tactical' use. The MAD doctrine is so aptly named .....
Cheers, Mike.
I have made this letter longer than usual because I lack the time to make it shorter ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
I've read on Le Monde that France is going to refund its veteran soldiers and also the civilians exposed to radiation during nuclear testing. Only the UK government, says Le Monde, is still refusing to accept any liability.
Tullio
I've read on Le Monde that France is going to refund its veteran soldiers and also the civilians exposed to radiation during nuclear testing. Only the UK government, says Le Monde, is still refusing to accept any liability.
Tullio
It took a considerable effort to try to achieve that liability DownUnda - the outback tests in the 50's which devastated Aboriginals ( Maralinga ). You don't have to imagine it. They actually cracked off UK nukes without any regard for them. They are people, not animals, but that was the shocking attitude then. Then there was the Montebello Islands ......
Cheers, Mike.
I have made this letter longer than usual because I lack the time to make it shorter ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
North Korea Nuclear Testing Interferance with LIGO
)
The LIGO interferometers, when operational, routinely pick up all manner of seismic activity from around the world. If it's underground and big enough the vibrations will travel and be detected after a suitable delay. The waves bounce about the Earth's interior and "focus" on the other side of the world, see here.
I'm pretty sure the last time the North Koreans tested a few years ago it was picked up. I forget the exact yield which was relatively small at ~ a couple of kilotons.
Cheers, Mike.
I have made this letter longer than usual because I lack the time to make it shorter ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
I'm more worried about living
)
I'm more worried about living a stones throw away. Could be worse I guess... I could be in Seoul.
I was here for the last round of tests too.........
Kathryn :o)
Einstein@Home Moderator
In the year 1960 when the
)
In the year 1960 when the Soviets tested their H-bombs in the Kamchatka peninsula I was working part time while still a student in the Institute of Physics at Trieste University. I was given the task to monitor the radioactivity of the atmosphere with a ionization chamber by aspiring air with a fan through a tissue pad, Then I put the pad under the ionization chamber window and measured the radioactivity. Those measurements were never made public but they were high.
Tullio
RE: In the year 1960 when
)
Hi Tullio,
Is that where they tested the Tsar Bomba ? The potentially 100 megaton
bomb. I think they reduced it to 50 or 57 MT for the test.
Regards,
Bill
RE: RE: In the year 1960
)
The treaty which ended the American and Russian atmospheric explosions was the main result of the Kennedy/Kruscev era and was signed in 1963. Cheers.
Tullio
RE: RE: In the year 1960
)
That one was on Novaya Zemlya ( arctic sea island ) as I recall. Topped out at ~ 55 + M ( Mentioned obliquely in the movie 'Dr Strangelove' )
I think USA had ( or have ) a bomb ( deuterium-tritium boosting ) which could exceed that but was never tested to capacity. The dial-a-yield bomb was based on the idea that you could use boosting to enhance yield OR reduce physical bomb size for a given yield. And hence the concept that one could 'limit' a nuclear war, or raise the odds in a conventional one, by 'tactical' use. The MAD doctrine is so aptly named .....
Cheers, Mike.
I have made this letter longer than usual because I lack the time to make it shorter ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal
I've read on Le Monde that
)
I've read on Le Monde that France is going to refund its veteran soldiers and also the civilians exposed to radiation during nuclear testing. Only the UK government, says Le Monde, is still refusing to accept any liability.
Tullio
RE: I've read on Le Monde
)
It took a considerable effort to try to achieve that liability DownUnda - the outback tests in the 50's which devastated Aboriginals ( Maralinga ). You don't have to imagine it. They actually cracked off UK nukes without any regard for them. They are people, not animals, but that was the shocking attitude then. Then there was the Montebello Islands ......
Cheers, Mike.
I have made this letter longer than usual because I lack the time to make it shorter ...
... and my other CPU is a Ryzen 5950X :-) Blaise Pascal