Earlier quoted context omitted.
Polyethylene is supposedly good at blocking cosmic rays. It would be funny to me if the fix was just a drop ceiling full of old grocery bags.
Have a source? That seems like an awesome way to recycle grocery bags.
Cosmic rays causing 30k network malfunctions in Japan each year
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Re: Cosmic rays causing 30k network malfunctions in Japan each year
#32Earlier quoted context omitted.
Very interesting, so should people who travel with photography equipment take night flights if possible?
Rays hit our planet regardless of Sun, if anything it might block a few. They are caused by ultra-energetic cosmic events, such as star collisions, black hole feeding cycles. Cosmic rays are just very potent photons, capable of knocking out electrons from an atom (meaning they are ionizing) causing havoc in precision electronics and, well, our DNA.
Cosmic rays can also be high energy ions. Most of the photons come from the sun and the ions can come from outside the universe and the sun.
Re: Cosmic rays causing 30k network malfunctions in Japan each year
#33Earlier quoted context omitted.
Polyethylene is supposedly good at blocking cosmic rays. It would be funny to me if the fix was just a drop ceiling full of old grocery bags.
Have a source? That seems like an awesome way to recycle grocery bags.
The peer comment posted a source that has lots of references.
Though most of them are tests in space, where I assume the thickness requirements would rule out grocery bags. I am curious how thick a layer of HDPE you would need on earth to make any notable difference.
Re: Cosmic rays causing 30k network malfunctions in Japan each year
#34As we move to 5nm chips, I wonder if there's a greater likelihood of errors from background radiation.
Re: Cosmic rays causing 30k network malfunctions in Japan each year
#35Earlier quoted context omitted.
Very interesting, so should people who travel with photography equipment take night flights if possible?
Rays hit our planet regardless of Sun, if anything it might block a few. They are caused by ultra-energetic cosmic events, such as star collisions, black hole feeding cycles. Cosmic rays are just very potent photons, capable of knocking out electrons from an atom (meaning they are ionizing) causing havoc in precision electronics and, well, our DNA.
What is the tolerance for cosmic rays for a human... I ask because on the journey to Mars you’ll get quite a few I guess and also on the planet’s surface after you’re there with such a thin atmosphere?
Re: Cosmic rays causing 30k network malfunctions in Japan each year
#36Ahh, the ol' Cisco get-out-of-jail-free card. Headline would be more accurate if it said "30K unidentified bugs blamed on unverifiable phenomenon each year in Japan".
I'm speculating here but it would be more likely that software bugs cause more errors than cosmic rays.
Found the rust programmer.
Re: Cosmic rays causing 30k network malfunctions in Japan each year
#37Earlier quoted context omitted.
Polyethylene is supposedly good at blocking cosmic rays. It would be funny to me if the fix was just a drop ceiling full of old grocery bags.
Have a source? That seems like an awesome way to recycle grocery bags.
Doesn't sound like that solution is plenum-rated.
Re: Cosmic rays causing 30k network malfunctions in Japan each year
#38Kind of a fun ancedote: In "the old days" when you'd run a server room in your office we had a very large HPC cluster + a significant amount of storage and other one off servers on the top floor of a mid rise office building. I eventually moved it all to a former nuclear fallout facility where our systems were three floors down and under a gigantic pool of water. Error rates and random crashes fell off IMMEDIATELY. I…
A reduction in floor and building vibration might have contributed too?
Re: Cosmic rays causing 30k network malfunctions in Japan each year
#39Earlier quoted context omitted.
Rays hit our planet regardless of Sun, if anything it might block a few. They are caused by ultra-energetic cosmic events, such as star collisions, black hole feeding cycles. Cosmic rays are just very potent photons, capable of knocking out electrons from an atom (meaning they are ionizing) causing havoc in precision electronics and, well, our DNA.
What is the tolerance for cosmic rays for a human... I ask because on the journey to Mars you’ll get quite a few I guess and also on the planet’s surface after you’re there with such a thin atmosphere?
This is actually a thing people are criticizing Musk for, he is being accused of sending people to Mars with insufficient shielding against cosmic rays.
In my opinion it's a bit silly argument, as there's a whole bunch of other risks and quality of life sacrifices made by the persons who are going to undertake that journey. Some raised chance of cancer is probably the least of their worries.
Re: Cosmic rays causing 30k network malfunctions in Japan each year
#40This is a great place to ask. Are our brains susceptible to this kind of interference and if so do you think the structure evolved to handle some corruption of this kind?