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Tuesday, November 22, 2011

What Items Might Survive an EMP?

Original Article

Identifying the systems that would probably fail if there were a strong-enough EMP from either a massive solar CME, a nuclear EMP weapon, or a tactical EMP bomb, is easier to speculate than  items that might survive an EMP. There are some obvious items that would survive, but many are not that obvious.
An EMP, an ‘electro-magnetic-pulse’, is a side-effect of a nuclear explosion, a coronal mass ejection (from the Sun), or a purposed EMP bomb. An EMP is a near instantaneous and invisible ‘ZAP’ of electricity that surges through electrical wires and electrical semiconductor components. ‘IF’ the EMP is strong enough and the electronic components are close enough to the source, then these components could fry. Once they are fried, that’s it… they’re done. Only physical replacements will bring the systems back up and running.

So, while attempting to discover what items will survive an EMP, we need to know what is INSIDE the item… namely, if there are any electronic semiconductors (transistors, IC ‘chips’, microprocessors, etc.). It is the microscopic semiconductor ‘junctions’ themselves that are vulnerable to melting due to an excess of electrical current being forced through the junction (from the EMP).
Also, an EMP will be carried through overhead power lines (at the speed of light) and could instantaneously overwhelm power transformers along the grid with excess electrical current, causing the windings of the transformers to melt into a molten blob. The power lines will also carry the EMP (at the speed of light) far and wide into homes and businesses in search of semiconductors to fry.
Here’s another thing to know… an EMP’s energy will decay the further away from the source that you get. Electronic circuits that are further away will be less vulnerable to the EMP. How far away? Well that depends (of course). It depends on the overall strength of the EMP, the altitude of the EMP, the ‘line-of-sight’ distance from the EMP, and any protection that the device might have to protect it from an EMP.

After all that, the simple answer to what items might survive, are those items that do not contain semiconductors!
The problem is, nearly all devices today contain semiconductors!

If the device you are wondering about contains any digital interface whatsoever, then you can probably kiss it good-bye. Often it may be difficult to even know if there are semiconductors in a device. Even if there is no digital interface, there could still very well be semiconductors or electronic circuits somewhere inside.

Since winter is coming on, let’s talk Heaters.

Electric heaters… Fogetaboutit. The grid will probably be down.
Oil heat… The burner’s ignitor transformers, electronic control circuits, and electronic controlled pumps will fry. Plus, with no electrical power, the pumps won’t function.
Natural gas heat… The utility gas pressure will probably remain for awhile, but electronic thermostats or gas valve controllers may fry. Some basic-style natural gas heaters, such as wall units, could be lit manually though – until the pressure runs out.
Portable heaters… Most self-fueled heaters without electronic controls will survive – until your fuel source runs out. If it plugs in, it’s toast.
Wood Stove heater… Ding Ding Ding… we have a winner!

Let’s talk cars.
As most of us know, any new car today is jam packed full of electronics. Forget it. It’s dead.
Any car made with electronic ignition and fuel injection will probably stop in it’s tracks. Cars have been being built with these features longer than you may think (~1980′s). Depending on the exact vehicle, you may be somewhat ‘safe’ with a car built in the early 1980′s, 1970′s or earlier. It would take some significant research to list the vehicles built without these electronic systems, but suffice it to say that most any vehicle today is vulnerable to EMP failure (if close enough to the EMP source).

Let’s talk ‘general’.
Generally speaking, ranging from tools, to appliances, to heaters, to vehicles… if it has electronic circuits, it is vulnerable to EMP. This basically leaves hand tools, hand operated or primitive appliances, wood stove heat, and old vehicles. We’re talking living like the 1800′s or earlier.
While the threat of an EMP to the degree of mass outages is apparently slim, the fact is that it is not zero. A huge portion of the world population today relies on electricity for survival. It has enabled great advancements in civilization. The lack thereof could enable great setbacks to civilization.
Be prepared.

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Dental Emergencies

Original Article

    Dental Emergencies

                 By Douglas W. Stephens, D.D.S. 

  TOM  and Sylvia Moore and their two boys, Tom Jr.,  age  twelve
and  Jed,  age ten, hiked all day and near dusk made  camp  on  a
lovely  grassy  knoll overlooking a high mountain  stream  loaded
with trout, apparently begging to be tossed in their frying pan. 

    At  daybreak, Tom and Sylvia were awakened by Tom  Jr.    and
Jed  jumping up and down outside their tent yelling for  them  to
get  up  and take them down to the stream.   The boys  had  their
four  rods  rigged by the time their parents had  dressed.    Tom
understood their excitement knowing how much the whole family had
been looking forward to this vacation. 

     As they started out, the two grownups found the kids'  feel
ings  contagious.     Halfway down the trail, Jed, who  had  been
running ahead, suddenly let out a cry of pain.   When the  family
rushed  up,  they found the boy lying on the ground  holding  his
jaw.    Tom  picked him up and sat him on a  flat  rock.    Blood
gushed out of his mouth.   Pulling the boy's hand away, Tom saw a
gapping hole where Jed's front tooth should have been.   The  boy
held  up  a bloody tooth.   Tom saw where the boy  fell  and  the
bloody  rock where he must have hit his jaw and realized  he  had
knocked the front tooth cleanly out of its socket. 

  Luckily Sylvia had once worked in a dental office.   She gently
took  the  tooth  from the boy being careful to hold  it  by  the
crown.    Leading  the boy back to camp, she sat him  in  a  camp
chair while she got out her emergency first aid kit.   Laying the
tooth  on a clean piece of gauze, she washed the blood  from  the
boy's mouth and inspected the tooth's socket.   A small amount of
blood  was still oozing out.   She had the boy rinse  with  plain
water  cautioning  him not to suck or use any force.    She  then
rinsed  what dirt she could from the surface of the  root,  being
careful  not to touch the root with her fingers.   Still  holding
the  tooth  by the crown, she tenderly inserted it in  the  tooth
socket,  holding  it firmly in place while her husband,  using  a
piece  of heavy monofilament fishing line splinted the  tooth  to
the  two adjoining teeth.   She made a cold pack with water  from
the  icy stream which she had the boy hold against his face  next
to the injured area to minimize swelling. 

Leaving Tom Jr.   and Sylvia at camp,  Tom took the boy down the
mountain  to  a hospital emergency room where they got  in  touch
with  a dentist who gave the boy more permanent  treatment.    He
told  Tom  due to their quick action in replacing the  tooth  and
bringing  him  in for professional help, they  had  an  excellent
chance  the tooth would be permanently attached though  he  would
have to check the tooth's pulp from time to time to make sure  it
was  alive.    If it died, he would fill the canal  and  the  boy
could still retain his tooth for many years.

  Often  when taking a vacation away from home, we  are  prepared
for general health problems but do not know what to do when faced
with a dental emergency.   Whether the trouble faced is a  simple
toothache,  pain  from tooth eruption or something  more  serious
like a broken jaw or a abscessed tooth, it may threaten to  spoil
a vacation. 

  Before leaving on a trip, it is good insurance to see a dentist
in order to make sure there will be no dental problems which  may
give  trouble  in the near term.   It is smart to  add  a  dental
first aid emergency kit to your luggage. 

  This should include:
  1.   Medications such as, salt, hydrogen peroxide (3%), aspirin
or acetaminaphen (Tylenol), oil of cloves and orabase with benzo
caine,  (like  Orabase Oral Protective Paste with  Benzocaine  on
sale at your local pharmacy). 
  2.    Supplies  should include: cotton   balls,  cotton  swabs,
gauze  pads,  tea bags, a toothbrush, dental  floss,  toothpicks,
tweezers,  some paraffin or candle wax and an ice pack or  a  wet
frozen wash cloth. 

   TOOTHACHE: The most common dental emergency.   This  generally 
means  a badly decayed tooth.   As the pain affects  the  tooth's
nerve,  treatment involves gently removing any debris  lodged  in
the  cavity  being careful not to poke deep as  this  will  cause 
severe pain if the nerve is touched.   Next rinse vigorously with
warm water.    Then soak a small piece of cotton in oil of cloves
and  insert it in the cavity.   This will give  temporary  relief
until a dentist can be reached. 

   At  times  the pain may have a more obscure location  such  as
decay under an old filling.   As this can be only corrected by  a
dentist  there  are  two  things you can do  to  help  the  pain.  
Administer  a pain pill (aspirin or some other analgesic)  inter
nally  or dissolve a tablet in a half glass (4 oz) of warm  water
holding  it in the mouth for several minutes before  spitting  it

    SWOLLEN  JAW:  This may be caused by several  conditions  the
most probable being an abscessed tooth.   In any case the  treat
ment should be to reduce pain and swelling.   An ice pack held on
the outside of the jaw, (ten minutes on and ten minutes off) will
take care of both.   If this does not control the pain, an  anal
gesic tablet can be given every four hours. 

   OTHER ORAL INJURIES: Broken teeth, cut lips, bitten tongue  or
lips  if  severe means a trip to a dentist as soon  as  possible.  
In  the mean time rinse the mouth with warm water and place  cold
compresses  on the face opposite the injury.   If there is a  lot
of  bleeding,  apply direct pressure to the bleeding  area.    If
bleeding  does  not stop get patient to the emergency room  of  a
hospital as stitches may be necessary. 

better  still  a moistened tea bag over the socket and  have  the
patient bite down gently on it for 30to 45 minutes.   The  tannic
acid  in the tea seeps into the tissues and often helps stop  the
bleeding.    If  bleeding  continues after two  hours,  call  the
dentist  or  take patient to the emergency room  of  the  nearest

BROKEN  JAW: If you suspect the patient's jaw is  broken,  bring
the upper and lower teeth together.   Put a necktie, handkerchief
or towel under the chin, tying it over the head to immobilize the
jaw  until you can get the patient to a dentist or the  emergency
room of a hospital. 

PAINFUL ERUPTING TOOTH: In young children teething pain can come
from  a  loose baby tooth or from an  erupting  permanent  tooth.  
Some relief can be given by crushing a little ice and wrapping it
in gauze or a clean piece of cloth and putting it directly on the
tooth  or gum tissue where it hurts.   The numbing effect of  the
cold,along with an appropriate dose of aspirin, usually  provides
temporary relief. 

In young adults, an erupting 3rd molar (Wisdom tooth), especial
ly  if  it is impacted, can cause the jaw to swell and  be  quite
painful.    Often  the gum around the tooth will  show  signs  of
infection.    Temporary  relief can be had by giving  aspirin  or
some  other  painkiller and by dissolving an aspirin  in  half  a
glass  of warm water and holding this solution in the mouth  over
ED  TO PREVENT BURNING THE TISSUE.   The swelling of the jaw  can
be  reduced by using an ice pack on the outside of the  face  (At
intervals of ten minutes on and ten minutes off. 

lips  or  tongue can be caused by many reasons,  irritation,  in
juries which bruise or cut the lip or just a run-down  condition.  
The germs which cause most of these sores are always laying  just
below  the  surface waiting for a chance to flare  up.    Usually
these  lesions  last five days no matter what you  put  on  them.  
Such  preparations as Blistex, Carmex, Butyn Dental  Ointment  or
Spirits  of Camphor will relieve pain but it is doubtful  whether
they  cause  them to heal any sooner.  New studies  suggest  that
high levels of another amino acid, arginine can give the body in
creased resistance to these painful mouth and lip sores. 

Generally,  when confronted by a dental emergency, you can  only
relieve  the pain and give temporary treatment until the  patient
can  see their dentist.    Sometimes, as was the case in Tom  and
Sylvia's  family, fast prompt emergency treatment can  spell  the
difference between permanently losing a tooth and saving it.  

Reprinted from American Survival Guide July 1991

Audio Podcast: Episode-782- James Sellars on Dealing With Anxiety

podcast_subscribeImage by derrickkwa via Flickr

Original Article

James Sellars, LCSW is a Licensed Clinical Social Worker in the state of New York. His practice focuses on assisting people through marital issues and divorce, as well as, the ugly aftermath it can leave behind. Mr. Sellars specializes in … Continue reading →