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Microwave ovens, the other source of 2.4GHz. There's probably a reason they used 2450MHz as the test frequency, a magnetron from an oven is cheaper and easier to obtain. https://hypertextbook.com/facts/1998/HowardCheung.shtml
This is a 2019 study. Would be more interesting if anyone else had managed to replicate it. Reading the study doesn’t inspire a lot of confidence in their methods. They make a lot of basic errors like listing dB figures (a relative term) when I think they mean dBmw (an absolute measurement). They tested multiple frequencies but for some reason only 2450MHz showed significant effects. 900MHz and 1800MHz showed no effe…
This is a peer reviewed article right? So presumably at least a couple other people in the field were satisfied with their methods. Are you suggesting they were wrong to accept this article?
This is a 2019 study. Would be more interesting if anyone else had managed to replicate it. Reading the study doesn’t inspire a lot of confidence in their methods. They make a lot of basic errors like listing dB figures (a relative term) when I think they mean dBmw (an absolute measurement). They tested multiple frequencies but for some reason only 2450MHz showed significant effects. 900MHz and 1800MHz showed no effe…
This is a peer reviewed article right? So presumably at least a couple other people in the field were satisfied with their methods. Are you suggesting they were wrong to accept this article?
The fact that no rat behavior change was reported until the 3 week mark heavily suggests external factors; hardly a cumulative effect as any long exposure effect would display.
Moreover an interesting paragraph:
> The average rectal temperatures of rat were observed to be 33.71±0.56 (control), 35.3±0.63 (EMR-900 MHz), 35.48±0.67 (EMR-1800 MHz) and 36.96±0.55 (EMR-2450 MHz) before and 33.91±0.82 (control), 35.5±0.51 (EMR-900 MHz), 35.66±0.60 (EMR-1800 MHz) and 37±0.78 (EMR-2450 MHz).
Seems to indicate the 2450 MHz rats were ill or otherwise stressed (rat body temperature hovers around 35.5, though it can increase at night), but no verification or mention is done on this whatsoever. I honestly believe many of effects described in the paper can be explained with the body temperature differential.
Also worth mentioning:
> The animals after being exposed to 900, 1800 and 2450 MHz EMR, the average power density was found to be 0.1227 W/m2. While the overall value of whole body average SAR was found to be approximately, 0.0227, 0.030 and 0.0616 W/kg.
Again not my field but I doubt 120mW/m2 can result in 50% absorption (61.6mW) per kg of rat. That means 2 kg of rats would absorb 100% of the radiation, while obviously not covering a full square meter. Please correct me if I misunderstood something.
I'm not saying that 2.4GHz radiation has no ill effects, there's tons of research on rats since the inception of the microwave, but it generally show changes at higher (and certainly more clear) SAR levels.
Earlier quoted context omitted.
This is a peer reviewed article right? So presumably at least a couple other people in the field were satisfied with their methods. Are you suggesting they were wrong to accept this article?
> This is a peer reviewed article right? So is this [0]. [0] https://juniperpublishers.com/ofoaj/OFOAJ.MS.ID.555850.php "Peer reviewed" does not necessarily mean high-quality or true.
This is a 2019 study. Would be more interesting if anyone else had managed to replicate it. Reading the study doesn’t inspire a lot of confidence in their methods. They make a lot of basic errors like listing dB figures (a relative term) when I think they mean dBmw (an absolute measurement). They tested multiple frequencies but for some reason only 2450MHz showed significant effects. 900MHz and 1800MHz showed no effe…
Water has a strong absorption peak at 2450 MHz (it’s what kitchen microwaves use).
Earlier quoted context omitted.
I have 30 wifi around me, to which I'm exposed 24/7. There is something to be said about long term effects even if they aren't as high power
but .... inverse square law ..... before you worry about wifi worry about the one known source of EMR that makes bigger fatter photons that do provably cause cancer .... you know the one, in the the sky, go out when it's visible and you can actually feel the photons
bluetooth operates at ~2400mhz. i wonder if any animal studies were done before wireless earbuds were made commercially available.
This is a 2019 study. Would be more interesting if anyone else had managed to replicate it. Reading the study doesn’t inspire a lot of confidence in their methods. They make a lot of basic errors like listing dB figures (a relative term) when I think they mean dBmw (an absolute measurement). They tested multiple frequencies but for some reason only 2450MHz showed significant effects. 900MHz and 1800MHz showed no effe…
Water has a strong absorption peak at 2450 MHz (it’s what kitchen microwaves use).
[0] https://en.wikipedia.org/wiki/Electromagnetic_absorption_by_...
This is a 2019 study. Would be more interesting if anyone else had managed to replicate it. Reading the study doesn’t inspire a lot of confidence in their methods. They make a lot of basic errors like listing dB figures (a relative term) when I think they mean dBmw (an absolute measurement). They tested multiple frequencies but for some reason only 2450MHz showed significant effects. 900MHz and 1800MHz showed no effe…