History Channel
Season. 5 Episode. 3
http://www.history.com/shows/the-universe
http://en.wikipedia.org/wiki/The_Universe_%28TV_series%29
EXCERPTS:
MAGNETIC STORM
[Magnetic Solar Storm, Coronal Mass Ejection (CME)]
"This isn't a disaster film.
This is a 2009 research report
from the national academy of sciences
and some say
the global catastrophe it outlines may be coming soon.
We're overdue."
Wires melt, Transformers explode
Satellites burn.
No light, no telephone, no radio
television, no internet.
whole infrastructure is damaged.
and Electricity will not come back until several years.
no Food deliveries, no water pumps, and no help.
1989, small storm black out, Quebec
Canadian province.
Fall through floor and walk through walls.
Its not atoms themselves but magnetic fields that
makes matter sold.
That keeps the person from walking through walls.
Magnetosphere
43,000 miles
You might wonder how is it
that our magnetosphere protect us
from coronal mass ejections.
But the sunlight still comes right through
and we hav e daylight.
WEll, that's because
the coronal mass ejection is mostly
CHARGED PARTICLES
and it's the electric charge
that the magnetic field grabs a hold to and traps.
Light has no electric charge.
and since it isn't a charged particle,
it passes right on
through the magnetic field
like it's not even there.
Compass does not point to the north
it point to the nearest largest magnetic field.
In fact compasses don't realy point to the north pole.
They point to a chunk of rock West of Ellesmere island off Canada.
THIS IS THE MAGNETIC NORTH POLE.
Our planet is actually a dynamo
a device that transfer
mechanical energy to magnetic energry.
The key for dynamo is motion.
Moving fluid can create electromagnetic energy.
Earths Core.
We know that the orientation
of the Earth's magnetic poles
SWITCHES every few hundred thousand years.
Ice cores and deep-sea geology
reveal evidence
that 780,000 years ago,
compasses would have pointed South.
50,000 years before that, A compass would have pointed North.
it's a recurring pattern on our planet
And it may happen again.
Last magmatic reverse was 780,000 years ago
which is longer than on average,
the field reverses.
So in sa sense, we're overdue
for a reversal.
SPACE WEATHER
Solar Maximum
2 or 3 per day solar storms.
Magnetic Field
Jupiter, Satrun, Uranus, Neptune, (4 large planets) have magnetic field
Jupiter biggest magnetic field.
Mercury 1% of Earth magnetic field
Venus virtually none.
When the Earth's magnetic field reverses
the process may leave Earth without the protective
magnetosphere for a period of days or even longer.
This could lead to the very real possibility
of the Mars scenario.
1859, Solar Storm
10 times larger the Quebec
Solar magnetic storm could lead to death of
1/3 to 1/2 of the population.
[Magnetic Solar Storm, Coronal Mass Ejection (CME)]
"This isn't a disaster film.
This is a 2009 research report
from the national academy of sciences
and some say
the global catastrophe it outlines may be coming soon.
We're overdue."
Wires melt, Transformers explode
Satellites burn.
No light, no telephone, no radio
television, no internet.
whole infrastructure is damaged.
and Electricity will not come back until several years.
no Food deliveries, no water pumps, and no help.
1989, small storm black out, Quebec
Canadian province.
Fall through floor and walk through walls.
Its not atoms themselves but magnetic fields that
makes matter sold.
That keeps the person from walking through walls.
Magnetosphere
43,000 miles
You might wonder how is it
that our magnetosphere protect us
from coronal mass ejections.
But the sunlight still comes right through
and we hav e daylight.
WEll, that's because
the coronal mass ejection is mostly
CHARGED PARTICLES
and it's the electric charge
that the magnetic field grabs a hold to and traps.
Light has no electric charge.
and since it isn't a charged particle,
it passes right on
through the magnetic field
like it's not even there.
Compass does not point to the north
it point to the nearest largest magnetic field.
In fact compasses don't realy point to the north pole.
They point to a chunk of rock West of Ellesmere island off Canada.
THIS IS THE MAGNETIC NORTH POLE.
Our planet is actually a dynamo
a device that transfer
mechanical energy to magnetic energry.
The key for dynamo is motion.
Moving fluid can create electromagnetic energy.
Earths Core.
We know that the orientation
of the Earth's magnetic poles
SWITCHES every few hundred thousand years.
Ice cores and deep-sea geology
reveal evidence
that 780,000 years ago,
compasses would have pointed South.
50,000 years before that, A compass would have pointed North.
it's a recurring pattern on our planet
And it may happen again.
Last magmatic reverse was 780,000 years ago
which is longer than on average,
the field reverses.
So in sa sense, we're overdue
for a reversal.
SPACE WEATHER
Solar Maximum
2 or 3 per day solar storms.
Magnetic Field
Jupiter, Satrun, Uranus, Neptune, (4 large planets) have magnetic field
Jupiter biggest magnetic field.
Mercury 1% of Earth magnetic field
Venus virtually none.
When the Earth's magnetic field reverses
the process may leave Earth without the protective
magnetosphere for a period of days or even longer.
This could lead to the very real possibility
of the Mars scenario.
1859, Solar Storm
10 times larger the Quebec
Solar magnetic storm could lead to death of
1/3 to 1/2 of the population.
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