Physics Van 3-site Navigational Menu

Physics Van Navigational Menu

Q & A: Lightning safety in a thunderstorm

Learn more physics!

Most recent answer: 08/22/2015
Q:
Why do you think you should not stand under a tree during a thunderstorm? Why do you think you should not stand with your legs apart? Or why is lying down dangerous?
hillcrest abortion clinic site live abortion video
the best android phone link phone tracking apps
internet drug coupons coupons for prescription medications prescription coupon
internet drug coupons site prescription coupon
married men cheat with men open wifes cheat
ventolin 2mg bistromc.org deltasone 40mg
new prescription coupon viagra coupons printable prescription coupon card
new prescription coupon viagra coupons printable prescription coupon card
prescription discount coupons softballspa.com viagra discount coupons online
prescription discount coupons free prescription drug cards viagra discount coupons online
coupon for viagra viagra trial coupon viagra discount coupons online
discount prescriptions coupons mba-institutes.com internet drug coupons
cialis price online link cialis price history
cialis coupon lilly coupons for cialis printable transfer prescription coupon
cialis coupon card read cialis coupons from manufacturer
drug discount coupons link discount coupons for prescriptions
cialis open cialis walgreen coupon
cialis cialis discount cialis walgreen coupon
voltaren retard voltaren pomada voltaren spray
singulair 4 mg granulat site singulair patient information
how expensive is an abortion abortion clinic abortion clinics dallas tx

- Sharmyn
STSB, Philippines
A:
Well, standing under a tree in a thunderstorm is probably the action you mention that has the biggest problem. Trees are often the tallest objects around and contain many pointy tips. The electric field is strongest near the pointed tip of an electrical conductor, and so trees often make for great targets for lightning strikes. Trees don't always conduct electricity as well as you do, since people are made mostly out of saltwater. The current from a lightning strike may leave the tree and jump over to you and follow your body on its way to the ground.

Standing out in a field far from trees may also pose risks too. In this case, you are the tallest object around and may be a target for lightning strikes. If you are carrying metal golf clubs at the time, it could raise your risk (this is a common reason people are standing out in flat fields during thunderstorms, is to carry golf clubs. Sometimes such people get struck by lightning). The safest place to be during a thunderstorm is a building or a car. Electricity can flow through the metal sides of a car and not through you.

I'm not so sure about your other questions. Standing with legs together or apart may not make much difference on anything. The only thing I can think of that it might have an effect on is if there is a nearby lightning strike, and there is a large amount of current flowing along the surface of the ground nearby. The ground has a resistivity, and so the voltage changes rapidly from one place to another during the time the current flows. If your legs are apart, the current may decide to flow through you rather than the ground, but this depends on how good an insulator the wet ground is and how good an insulator your boots are. I'd imagine that this is much less likely to cause injury than a direct lightning strike anyhow.

Lying down actually sounds like not such a bad idea, except that during thunderstorms it is probably wet down on the ground. It's best to seek a house or car to stay in during the storm.

Tom
hillcrest abortion clinic stories of abortion live abortion video
married woman looking to cheat go most women cheat
discount card prescription damske.com print cvs
rite aid prescription transfer coupon mesutcakir.com.tr coupon rite aid
coupons rx prostudiousa.com www.januvia.com coupons
levitra pill go tadalafil pill
finasteride sigridw.com cialis 80mg
prescription drugs discount cards blog.plazacutlery.com coupons for viagra printable
coupons for prescriptions floridafriendlyplants.com prescription drugs discount cards
viagra coupons free link drug coupons
prescription discount coupons open viagra discount coupons online
coupon for viagra viagra trial coupon viagra discount coupons online
discount prescriptions coupons mba-institutes.com internet drug coupons
manufacturer coupons for prescription drugs viagra coupons 2016 coupon prescription
1 wk pregnant d&c dilation and curettage article on abortion
cialis dosage and go cialis dose for copd pts
cialis price online open cialis price history
cialis coupons from lilly coupon for free cialis coupons for prescriptions
cialis coupon card read cialis coupons from manufacturer
cialis coupon card read cialis coupons from manufacturer
drug discount coupons blog.suntekusa.com discount coupons for prescriptions
arcoxia 30 arcoxia 90 arcoxia wiki
niacine movidafm.net niacin v hrani
kamagra wikipedia click kamagra shop
proscar vs propecia for hair loss proscar pris proscar pris
cialis open cialis walgreen coupon
renovacija stanovanja renovator renova g
lasix injetavel lasix efeitos colaterais lasix
voltaren retard link voltaren spray
motilium enceinte blog.cr-inside.org motilium et grossesse

(published on 10/22/2007)

Follow-Up #1: Do cars protect from lightning?

Q:
are you protected from lightning in a car? If so, why? We have always heard that the reason is that rubber tires are insulators. However it recently came to our attention that others have views that differ from ours. Specifically we have heard that the protection is attributable to a so called "Faraday shield" due to the metal in the body of the car. Accordingly a motorcycle offers no protection from lightning. What are the facts? Please respond before the next thunderstorm storm, which is imminent.
internet drug coupons open prescription coupon
married men cheat with men open wifes cheat
married men cheat with men why husbands cheat wifes cheat
abortion pill clinics abortion pill prices for abortions
finasteride zithromax cialis 80mg
free viagra samples coupon open viagra 2016 coupon
viagra coupons from manufacturer liberitutti.info drug discount coupons
pfizer coupons for viagra free discount prescription cards viagra discounts coupons
prescription discount coupons open viagra discount coupons online
manufacturer coupons for prescription drugs viagra 2016 coupon coupon prescription
lisinopril and energy drinks lisinopril and energy drinks lisinopril and energy drinks
cialis coupons from lilly click coupons for prescriptions
niacine movidafm.net niacin v hrani
kamagra wikipedia click kamagra shop
flibanserin online lasertech.com flibanserin buy
proscar vs propecia for hair loss read proscar pris
renovacija stanovanja click renova g
vivitrol alcohol vivitrol implant narcan challenge

- mark cullen (age 61)
los altos, ca. , caliornia
A:
Mark- I don't think that the rubber tires are much help. After all, lightning breaks down air, so it has no trouble getting from the bottom of a car to the ground. On the other hand, if the electricity has a nice conductor to go through, that's the path it will choose. That's the principle behind lightning rods. So the current will go through the metal car, rather than taking a pointless detour through you. It doesn't sound like a motorcycle would help much.

Mike W.
internet drug coupons coupons for prescription medications prescription coupon
best android spy spy on mobile how to spy on an android phone
diprolene kamagra furosemide 40mg
levitra pill imitrex 25mg tadalafil pill
finasteride lasix 40mg cialis 80mg
viagra coupons from manufacturer open drug discount coupons
prescription drugs coupons viagra manufacturer coupon 2016 viagra coupon card
discount prescriptions coupons mba-institutes.com internet drug coupons
manufacturer coupons for prescription drugs viagra coupons 2016 coupon prescription
can i take escitalopram in the morning link can i take escitalopram in the morning
where buy viagra online http://viagraforsaleuk1.com online viagra buy
prescription drug coupons cialis coupons from lilly drug coupon
coupons for prescriptions mha.dk drug prescription card
champix alkohol mdwguide.com champix
ibuprofen rapid tracyawheeler.com ibuprofen
sildenafil pfizer link sildenafil sandoz
proscar vs propecia for hair loss proscar pris proscar pris
fluvoxamine (luvox) blog.tgworkshop.net fluvoxamina bula

(published on 08/08/2011)

Follow-Up #2: how do lightning rods work?

Q:
I believe the main principle behind the lightening rod is that the pointed metal tip leaks charge to prevent the build up of opposite charge (relative to the underside of the clouds) on the building which decreases the chances of lightening striking there. The connected wires will send the electricity directly to ground in case lightening were to strike.
prescriptions coupons go discount coupon for viagra
coupons for prescriptions new prescription coupons prescription drugs discount cards
viagra coupons free read drug coupons
viagra coupons free link drug coupons
discount prescriptions coupons printable cialis coupon internet drug coupons
can i take antabuse and naltrexone can i take antabuse and naltrexone can i take antabuse and naltrexone
acheter viagra pas http://acheterviagraenfrance.com/pas acheter viagra pas
cialis price online open cialis price history
cialis manufacturer coupon link prescription drug coupons
lilly cialis coupon coupons for prescriptions coupons prescriptions
naprosyn roche rileytech.net naprosyn nedir
kamagra wikipedia kamagra jelly kamagra shop
flibanserin online click flibanserin buy
proscar vs propecia for hair loss proscar proscar pris
amlodipine 5 mg link amlodipine accord
renovacija stanovanja renovator renova g
vivitrol alcohol vivitrol implant narcan challenge

- Joey (age 20)
Washington, D.C.
A:

That ability to "leak charge" by ionizing some air in the vicinity of the tip actually tends to increase the chance that lightning will strike there. The protection comes completely from the other effect- the current flowing through the rod to the ground, rather than through the building.

Mike W.

why people cheat infidelity signs how many people cheat
the best android phone link phone tracking apps
internet drug coupons open prescription coupon
types of abortions read what happens when you get an abortion
abortion pill clinics abortion pill prices for abortions
levaquin pill diprolene 0.05% furosemide pill
finasteride zithromax cialis 80mg
online discount pharmacy dotnetblogengine.net coupon for prescription
prescription drugs coupons click viagra coupon card
viagra coupons free softballspa.com drug coupons
pfizer coupons for viagra prescription coupon viagra discounts coupons
viagra bestellen online viagra pillen kruidvat pillen kopen
where buy viagra online side effects from viagra use online viagra buy
prescription drug coupons cialis coupons from lilly drug coupon
drug discount coupons blog.suntekusa.com discount coupons for prescriptions
arcoxia 30 arcoxia 90 arcoxia wiki
champix alkohol click champix
proscar vs propecia for hair loss read proscar pris
cialis thepoliticalsword.com cialis walgreen coupon
amlodipine 5 mg amlodipine bijwerkingen amlodipine accord
cialis coupon card coupon prescription cialis coupon

(published on 02/19/2015)

Follow-Up #3: why is it not advisable to touch a tent while it is raining?

Q:
why is it not advisable to touch a canvas tent from inside while it is raining?
married woman looking to cheat married men that cheat most women cheat
types of abortions site what happens when you get an abortion
types of abortions the weeks of pregnancy what happens when you get an abortion
walgreens coupons deals blog.mrwade.co.uk walgreens photo print coupons
free prescription cards nwwebdesigns.net walgreens prints coupon codes
coupons rx prostudiousa.com www.januvia.com coupons
finasteride zithromax cialis 80mg
imitrex 50mg thepoliticalsword.com flagyl 200mg
coupons for prescriptions new prescription coupons prescription drugs discount cards
viagra coupon card blog.brunothalmann.com viagra free coupon
coupon for viagra viagra trial coupon viagra discount coupons online
cialis coupon card read cialis coupons from manufacturer
voltaren ára house.raupes.net voltaren
augmentin générique arbot.cz augmentin sirop
arcoxia 30 click arcoxia wiki
buscopan hund go buscopan dragees
cefdinir red stool cefdinir nedir cefdinir nedir
amlodipine 5 mg amlodipine bijwerkingen amlodipine accord
nurofen cold and flu dosage internetsellout.com nurofen plus dosage
allods online go allo allo
trental cena trenitalia trental nuspojave

- harun abdi (age 16)
kenya
A:

I believe this is due to the risk of lightning. Especially if there are not any taller objects such as trees in the immediate neighborhood, the top of the tent may become a lightning target. Your feets may not be insulated from the ground, so you may accidentally ground the top of the tent by completing the circuit with your body. Lightning likes sharp objects: the effect will be the same as a person standing in a meadow. Even if your tent is made of an insulator (say plastic), the lightning voltage is so high that it can destroy that barrier.

Tunc

types of abortions site what happens when you get an abortion
best android spy open how to spy on an android phone
abortion pill clinics abortion pill prices for abortions
walgreens coupons deals free grocery coupons walgreens photo print coupons
rite aid prescription transfer coupon mesutcakir.com.tr coupon rite aid
diprolene go furosemide 40mg
imitrex 50mg site flagyl 200mg
prescriptions coupons go discount coupon for viagra
new prescription coupon areta.se prescription coupon card
prescription drugs coupons click viagra coupon card
coupons for prescriptions click prescription drugs discount cards
coupon for viagra viagra trial coupon viagra discount coupons online
manufacturer coupons for prescription drugs viagra 2016 coupon coupon prescription
1 wk pregnant d&c dilation and curettage article on abortion
lisinopril and bisoprolol lisinopriland.net lisinopril and bisoprolol
cialis dosage and go cialis dose for copd pts
cialis dosage and go cialis dose for copd pts
acheter viagra pas acheter viagra pas acheter viagra pas
cialis price online open cialis price history
prescription drug coupons cialis coupons from lilly drug coupon
drug discount coupons link discount coupons for prescriptions
lilly cialis coupon coupons for prescriptions coupons prescriptions
naprosyn roche rileytech.net naprosyn nedir
kamagra wikipedia kamagra jelly kamagra shop
seroquel 25 mg click seroquel debljanje
fluvoxamine (luvox) blog.tgworkshop.net fluvoxamina bula
cialis cialis discount cialis walgreen coupon

(published on 08/22/2015)

Follow-up on this answer.