car antenna - daylight version

EM waves melt snow

Category:

Science & Technology

Tags:

• em
• electromagnetic
• waves
• electro
• magnetic
• melt
• melting
• snow
• water
• microwaves
• uhf
• ultra
• high
• frequency
• frequencies
• mhz
• hz
• radio
• signals

[Resdon111]

Cell phone towers max out at about four watts (1/250th of a kilowatt); not nearly strong enough.

The material, rubber or lacquor, is insignificant. Black is black and will absorb heat. Just the same as how my blacktop driveway will melt off five inches of snow in a day or two, when my neighbor's concrete driveway would take weeks; even when its always overcast.

[newcome880]

I agree that black absorbs heat but it won't do so at night where there's nothing to be absorbed (therefore I gave you the link to the other vid).

[Resdon111]

That has absolutely nothing to do with EM or radio waves. That antenna is connected to a receiver. To even have a chance at melting snow with EM waves it would have to be connected to a transmitter.

[newcome880]

so you say I faked it ? Believe me, I didn't put the snow away, that's exactly what it looked like without any intervention.

I don't say that the antenna itself is responsible for the melting snow but perhaps the radio waves that come from the broadcast station are somehow reflected by the antenna or cause a voltage inside it which is then reflected to the roof, similar to the EM waves that cause a voltage in a coil (radio without battery). I'm not a radio specialist, just speculating.

[Resdon111]

No, I'm not saying that you faked it, I'm just saying that it isn't from a radio wave.

What you mention in your second paragraph is called inductance, and in order for it to be strong enough to melt snow, the original broadcast transmitter would have to have power in multi-kilowatts (VERY high power) and be in your front yard to be strong enough.

I think it would be much more likely that the black rubber on the antenna absorbed heat from sunlight and radiated that down to roof of the car.

[newcome880]

well, there's a powerful transmitter standing about 50 meters away, perhaps that thing is powerful enough, I don't know. But I guess that transmitter is used for mobile phones but I'm not sure about that. If so I think that would be micro waves (GHz).

Anyway, there's no rubber on the antenna, it's only black lacquering. At the time I filmed it was cloudy, so it would have been very hard for the antenna to absorb sunlight.

[newcome880]

It either was caused by the EM waves (perhaps a resonance effect) or by another source. Btw, light is also EM ;-)

I don't know if you have also seen my 2nd video:

watch?v=ZlFq_T_ltEk

this one I made at night (the snow had begun falling when it was dark).

Radio waves are also used in medicine to kill tumor cells (by creating heat).

[newcome880]

is that an explanation ?

The radio wasn't even turned on. So it wasn't receiving anything at all.

[OH2FFY]

You do of course realize that receiving antennas don't emit EM or RF radiation .......

Regards

gregW:-) OH2FFY

**See my Ham Radio videos on YouTube**