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FEMA Region III


ohiomike

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are the states of DC, DE, MD, PA, VA, WV.
 
NASA WARNING:Meteor shower 2014 "Asteroid Impacts" in FEMA region 3
 
"ISON debris field will bring many, many asteroids and meteors to earth in January 2014.  FEMA region III is in the bullseye.  But nowhere will be safe.
 
January 2014 will be a very interesting month.  Stay away from the coastlines and Nuclear facilities due to a grid down scenario.  Store food water and seeds.  Get armed.  FINAL WARNING!!!  Good Luck to you and your famiily."
 

 

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and now a "scientific" angle on the ISON debris field...
 
http://science.nasa.gov/science-news/science-at-nasa/2013/19apr_isonids/
 
 

According to Wiegert's computer models, the debris stream is populated with extremely tiny grains of dust, no more than a few microns wide, pushed toward Earth by the gentle radiation pressure of the sun. They will be hitting at a speed of 56 km/s or 125,000 mph. Because the particles are so small, Earth’s upper atmosphere will rapidly slow them to a stop.
"Instead of burning up in a flash of light, they will drift gently down to the Earth below," he says.
Don’t expect to notice. The invisible rain of comet dust, if it occurs, would be very slow. It can take months or even years for fine dust to settle out of the high atmosphere.

While the dust is “up there,” it could produce noctilucent clouds (NLCs).
NLCs are icy clouds that glow electric-blue as they float more than 80 km above Earth's poles. Recent data from NASA's AIM spacecraft suggests that NLCs are seeded by space dust. Tiny meteoroids act as nucleating points where water molecules gather; the resulting ice crystals assemble into clouds at the edge of space itself.
This is still speculative, but Comet ISON could provide the seeds for a noctilucent display. Electric-blue ripples over Earth's polar regions might be the only visible sign that a shower is underway.

Wiegert notes another curiosity: "The shower is going to hit our planet from two directions at once."

When Earth passes through the debris stream, we will encounter two populations of comet dust. One swarm of dust will be following the Comet ISON into the sun. Another swarm will be moving in the opposite direction, pushed away from the sun by solar radiation pressure. The streams will pepper opposite sides of Earth simultaneously.

"In my experience, this kind of double whammy is unprecedented," says Wiegert.

Bill Cooke, lead scientist at NASA's Meteoroid Environment Office, says there's little danger to Earth-orbiting spacecraft. "These particles are just too small to penetrate the walls of our satellites, and they don't stand a chance against the heavy shielding of the ISS." However, he adds, mission operators will be alert around January 12th for possible anomalies.

Sky watchers should probably be alert, too. The odds of seeing anything are low, but Comet ISON could prove full of surprises.

Edited by magley64
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Yup, even that dust isn't a big deal. Up to 40,000 tons of dust from space fall on the Earth every year.

 

On the other hand, moving in orbit like the space shuttle or space station does, has a significant impact.

 

This is a .06mm dust particle hit on a window, and a 1mm hit on an electrical cable:

Corsaro_Fig_1_Impact_Damage.jpg

Edited by ReconRat
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Yup, even that dust isn't a big deal. Up to 40,000 tons of dust from space fall on the Earth every year.

 

On the other hand, moving in orbit like the space shuttle or space station does, has a significant impact.

 

This is a .06mm dust particle hit on a window, and a 1mm hit on an electrical cable:

Corsaro_Fig_1_Impact_Damage.jpg

 

Not sure about the first picture but a can tell you at 100% the image on the right ain't no electrical cable.  That's a piece of fiber reinforced rubber hose.

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Not sure about the first picture but a can tell you at 100% the image on the right ain't no electrical cable.  That's a piece of fiber reinforced rubber hose.

Just quoting NASA, but I have seen electrical conduits like that one. The wires aren't in there maybe?

edit: I looked, that one came from a satellite, not the space shuttle.

edit again: What surprises me, is that there isn't a stainless steel mesh on the inside or outside for electromagnetic protection.

yet another edit: It meets the requirements of MIL-PRF-24758 for ship-board conduit, flexible weatherproof.

Edited by ReconRat
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Just quoting NASA, but I have seen electrical conduits like that one. The wires aren't in there maybe?

edit: I looked, that one came from a satellite, not the space shuttle.

edit again: What surprises me, is that there isn't a stainless steel mesh on the inside or outside for electromagnetic protection.

yet another edit: It meets the requirements of MIL-PRF-24758 for ship-board conduit, flexible weatherproof.

 

Google MIL-PRF-24758, that rubber hose is not MIL-PRF-24758 ship-board conduit, it's a US Navy specification also and not Nasa.  The conduit has a flexible corrugated metal inner core with a weatherproof outer coating.  It's not a rubber inner core with a stainless mesh outer cover like in your image.  Where are you getting the info on that stuff from or a link to the pictures?  I'm curious to see what they are talking about now.

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Google MIL-PRF-24758, that rubber hose is not MIL-PRF-24758 ship-board conduit, it's a US Navy specification also and not Nasa.  The conduit has a flexible corrugated metal inner core with a weatherproof outer coating.  It's not a rubber inner core with a stainless mesh outer cover like in your image.  Where are you getting the info on that stuff from or a link to the pictures?  I'm curious to see what they are talking about now.

Agreed. The lack of a metal core is confusing. Almost nothing on board spec ships is unshielded. It would only make sense to me if all the wiring was itself shielded. Space stuff has crazy requirements for dealing with free oxygen that attacks stuff, and an electrical effect where current will flow on the surfaces like St Elmo's Fire. On top of the cold and hot and vacuum problems. Zinc boils, silver corrodes, metals loose strength...it's a pain.

 

Would I design something like that? No idea, it depends on the requirements.

 

Here's where it came from, and since it's not apparently their field, they just might have got it wrong. I've been unable to trace the image that they used to anywhere else. I wanted the windshield impact image, and the other one came along with it. I should have looked closer, but it was 6am.

http://www.aip.org/asa_laypapers2011/Corsaro.html

 

edit: I had mentioned MIL-PRF-24758 since it appears to have a sub category of flexible non-metallic conduit. That's what this looked like. I haven't yet looked up the actual spec, so I could be wrong. And yes, it's a Navy spec. When I was working there weren't many specs for space. Humor is, that if it were a US Navy satellite, it probably used Navy ship specs...

Edited by ReconRat
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