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Mariko
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Nice Topic and info Nick! I heard that when you turn your T.V. on and you get that snow or in otherwords no reception that, the T.V. is picking up is acctualy some sort of energy from the Big Bang.. what do you think?
May I add my support and congrats too - this is excellent!Mariko said:Nice Topic and info Nick!
Would you like to do a little digging on your own Mariko?I heard that when you turn your T.V. on and you get that snow or in otherwords no reception that, the T.V. is picking up is acctualy some sort of energy from the Big Bang.. what do you think?
Nereid said:Would you like to do a little digging on your own Mariko?
Nereid said:Do you know, when a TV set is tuned to station x, what the frequency is of the radio waves it's picking up? You've probably heard of VHF and UHF - do you what they are?
As it was a popsci lecture, the speaker may not have given any details ... do you think we could work this out for ourselves?Berislav said:I remember attending a popular science lecture a few years back where the speaker said that a small part of static (i.e, "snow") is due to the CMBR.
would you like to continue Berislav?
Nereid said:As it was a popsci lecture, the speaker may not have given any details ... do you think we could work this out for ourselves?
Berislav said:As mentioned it the article most of it arises from radiation emmited by the sun and distant stars. This because the Sun's radiation has a longer wave-lenght than the CMBR
The CMBR has the characteristics of black-body with temparature 2.725 K, while the Sun has the characteristics of a black-body with temparature 6000K (if I recall the temparature correctly).
So a small part of the noise one detects with their television will be from the CMBR.
SpaceTiger said:Most of the sun's radiation is of a much shorter wavelength than the CMBR, but it's so close and bright that it contributes a sizable amount of noise even in the microwave regime.
Yes, your TV set can pick up the CMBR (Cosmic Microwave Background Radiation) which is a type of electromagnetic radiation.
Your TV set has an antenna that is designed to receive signals in the radio frequency range, which includes the CMBR.
No, the CMBR is a very low energy form of radiation and will not harm your TV set in any way.
Yes, the CMBR is present everywhere in the universe and can be picked up by any TV set with an antenna, regardless of location.
No, the CMBR is not a TV channel and cannot be watched like regular programming. It is a form of background radiation that can only be detected and studied using specialized equipment.