Crosswords0 min ago
Minus 3 degrees but still no frost??
11 Answers
Im obviously not a weather expert, so how come where I live it has been -2/-3 degrees for a couple of days and yet not a single touch of frost. in fact, just by looking outside it doesnt even look cold, but as soon as you open the front door.......christ its freezing!!
Answers
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Dave - wearing nylon knickers will mean an additional risk of shocks, so may I suggest cotton:
I quote:
Why do we experience static shocks?
Many people ask about shocks experienced when they touch the door, filing cabinet, lift, or other metal object.
Static electricity is generated whenever two materials are in contact with each other. All materials are made of electrical charges in the material atoms. In the universe there are equal amounts of negative electrical charge (electrons) and positive charge (protons). These generally try to stay in balance of equal amounts at every location.
However, when two materials are in contact, some of the charges redistribute by moving from one material to the other. This leaves an excess of positive charge on one material, and an equal negative charge on the other. When the materials move apart, each takes it's charge with it. One material becomes charged positively, and the other negatively.
If the materials are able to conduct electricity away the charges will dissipate and eventually recombine. In this case, static electricity effects may be too small to be noticed. However, if the charges are separated faster than the material can dissipate them, the amount of electrostatic charge builds up. Eventually a high voltage, and the effects of static electricity, may be noticed.
Does the weather affect static electricity?
Static charge build-up is enhanced when the air is dry. So, static problems and effects are often noticed in dry air conditions. The air outside can be very dry when the weather is cold and dry. Indoors, central heating or air conditioning can give very dry conditions which promote static electricity. Heating warms the air and reduces its humidity.
Static shocks are often noticed in cold dry weather, especially when in a centrally heated environment, and may disappear when the weather gets more humid. Static shocks may also be encouraged under air conditioning in hot weather.
How can I stop static shocks?
Unfortunately cure is not always easy. Indoors, you can try raising the air humidity to 40-50% rh with a humidifier. (You can check the humidity with a cheap humidity meter from a gardening shop.) Also, look for shoes with leather soles. In the electronics industry, and in areas where electrostatic sparks could cause a fire hazard, people often wear specially designed static dissipative shoes to reduce electrostatic charge build-up on the body. It is less likely that problems will be experienced with non-polymer floors, such as cement or wood (although varnishes can cause problems). However, replacing the floor can be expensive!
It is possible to treat some floors with static dissipative treatments - but the benefit of this will probably wear off after a while.
Furnishings and car seats can be difficult to treat - there are some antistatic sprays available you could try. Or, you could try rubbing the fabric with fabric softener sheets, or spraying them with diluted fabric conditioner.
And don't wear nylon panties or camis - especially men as they tend to frot on the skin more.
I quote:
Why do we experience static shocks?
Many people ask about shocks experienced when they touch the door, filing cabinet, lift, or other metal object.
Static electricity is generated whenever two materials are in contact with each other. All materials are made of electrical charges in the material atoms. In the universe there are equal amounts of negative electrical charge (electrons) and positive charge (protons). These generally try to stay in balance of equal amounts at every location.
However, when two materials are in contact, some of the charges redistribute by moving from one material to the other. This leaves an excess of positive charge on one material, and an equal negative charge on the other. When the materials move apart, each takes it's charge with it. One material becomes charged positively, and the other negatively.
If the materials are able to conduct electricity away the charges will dissipate and eventually recombine. In this case, static electricity effects may be too small to be noticed. However, if the charges are separated faster than the material can dissipate them, the amount of electrostatic charge builds up. Eventually a high voltage, and the effects of static electricity, may be noticed.
Does the weather affect static electricity?
Static charge build-up is enhanced when the air is dry. So, static problems and effects are often noticed in dry air conditions. The air outside can be very dry when the weather is cold and dry. Indoors, central heating or air conditioning can give very dry conditions which promote static electricity. Heating warms the air and reduces its humidity.
Static shocks are often noticed in cold dry weather, especially when in a centrally heated environment, and may disappear when the weather gets more humid. Static shocks may also be encouraged under air conditioning in hot weather.
How can I stop static shocks?
Unfortunately cure is not always easy. Indoors, you can try raising the air humidity to 40-50% rh with a humidifier. (You can check the humidity with a cheap humidity meter from a gardening shop.) Also, look for shoes with leather soles. In the electronics industry, and in areas where electrostatic sparks could cause a fire hazard, people often wear specially designed static dissipative shoes to reduce electrostatic charge build-up on the body. It is less likely that problems will be experienced with non-polymer floors, such as cement or wood (although varnishes can cause problems). However, replacing the floor can be expensive!
It is possible to treat some floors with static dissipative treatments - but the benefit of this will probably wear off after a while.
Furnishings and car seats can be difficult to treat - there are some antistatic sprays available you could try. Or, you could try rubbing the fabric with fabric softener sheets, or spraying them with diluted fabric conditioner.
And don't wear nylon panties or camis - especially men as they tend to frot on the skin more.
1 to 11 of 11
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