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2450MHz radiation induces stress and anxiety like behavior in rats (2019)

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Re: 2450MHz radiation induces stress and anxiety like behavior in rats (2019)

#61

Post by abainbridge »

abainbridge wrote: post #59
jazzyjackson wrote: post #45

Earlier quoted context omitted.

i’m trying to google a better answer, it seems ISM bands were chosen when microwaves were a nascent technology, so it’s a bit chicken and egg

Not really an answer, but here's some context... In 1952, a paper called Tubes for dielectric heating at 915 megacycles said this, "Dielectric heating can be much faster at microwave frequencies. Because leakage radiation is large enough to interfere with communications, heating is best done at assigned frequencies. The bands at 915 and 2,450 megacycles are most useful." https://ieeexplore.ieee.org/abstract/document/…

Ah, OK, 1947.

"The plan which is, recommended by the United States provides for certain discrete frequencies, with appropriate guard bands, for those industrial scientific and medical devices which cannot be shielded effectively. This assures a minimum disruption of vital communication services. The allocation of frequencies for this purpose is justified because of the tremendous investments in equipment and the public demand for the various services performed, together with the harmful interference to radio communications which would result if such devices were scattered indiscriminately throughout the spectrum. The frequencies proposed are:

13660 kHz

27320 kHz

40980 kHz

2450 MHz"

http://handle.itu.int/11.1004/020.1000/4.62.51.en.108, page 628.

Re: 2450MHz radiation induces stress and anxiety like behavior in rats (2019)

#62

Post by gpderetta »

blendergeek wrote: post #24
alksjdalkj wrote: post #21

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.

"Finally, we would like to acknowledge that this study would not have been possible had it not been for the predatory journal industry. Without it, academia and society would be a better place. "

Re: 2450MHz radiation induces stress and anxiety like behavior in rats (2019)

#63

Post by foxfluff »

noselasd wrote: post #53
blobbers wrote: post #28

Earlier quoted context omitted.

What are you talking about? Your wifi router isn't jumping channels unless you have something fairly sophisticated (read auto channel assignment that recalibrates periodically when nobody is connected).

Doesn't most consumer wifi routers do that by now by default ?

I don't know if it hops when nobody is connected but I certainly found mine to hop while I'm connected. It'd hop around until it finds a channel where wifi doesn't work, and then stays there.

I had to force a channel..

Re: 2450MHz radiation induces stress and anxiety like behavior in rats (2019)

#64

Post by hansel_der »

inter_netuser wrote: post #56
R0b0t1 wrote: post #47

Earlier quoted context omitted.

1800MHz is not that close to 2450MHz. Behavior in air is different, for one, and the properties that dictate this, the vibrational modes of atoms and so on, are extremely selective.

Not just atoms, you could be hitting something specific in terms of resonance at 2.45ghz. Maybe rats skull size is perfectly resonant at that frequency, who knows.

2,45GHz ~= 12,2 cm wavelength

resonance seems plausible

Re: 2450MHz radiation induces stress and anxiety like behavior in rats (2019)

#65

Post by sandworm101 »

kumarvvr wrote: post #48
sandworm101 wrote: post #11

Earlier quoted context omitted.

It is a pipe that moves radio/light/sound waves from one place to another, usually between where they are created and where they are being used such as between transmitter and antenna or, in this case, between transmitter and rat in a cage. They look like normal pipes but inside have internal structure (ridges) designed to keep the waves propagating with minimal loss. In theory, a fiberoptic cable is a waveguide for…

> In theory, a fiberoptic cable is a waveguide for light In practice too. Your statement makes it sound like its an exotic property.

The difference with optics is that they are solid, unlike sound/RF waveguides which are hollow. A fiberoptic cable just doesn't seem very pipe-like and isn't normally called a waveguide.

Re: 2450MHz radiation induces stress and anxiety like behavior in rats (2019)

#66

Post by AussieWog93 »

nwallin wrote: post #42

Just a reminder that if 20 interested things are studied, on average you should expect 1 of them to be a false positive with p relevant xkcd: https://xkcd.com/882/

In theory, it's 1 in 20. In practice, it's much, much higher, closer to 2 out of 3: https://en.m.wikipedia.org/wiki/Replication_crisis

Re: 2450MHz radiation induces stress and anxiety like behavior in rats (2019)

#67

Post by hansel_der »

sandworm101 wrote: post #65
kumarvvr wrote: post #48

Earlier quoted context omitted.

> In theory, a fiberoptic cable is a waveguide for light In practice too. Your statement makes it sound like its an exotic property.

The difference with optics is that they are solid, unlike sound/RF waveguides which are hollow. A fiberoptic cable just doesn't seem very pipe-like and isn't normally called a waveguide.

seems like a flaky distinction

Re: 2450MHz radiation induces stress and anxiety like behavior in rats (2019)

#68

Post by accountofme »

inter_netuser wrote: post #56
R0b0t1 wrote: post #47

Earlier quoted context omitted.

1800MHz is not that close to 2450MHz. Behavior in air is different, for one, and the properties that dictate this, the vibrational modes of atoms and so on, are extremely selective.

Not just atoms, you could be hitting something specific in terms of resonance at 2.45ghz. Maybe rats skull size is perfectly resonant at that frequency, who knows.

2.4GHz resonates with water. Thus why it is also used in microwaves to heat our food!

Re: 2450MHz radiation induces stress and anxiety like behavior in rats (2019)

#69

Post by hansel_der »

blobbers wrote: post #28
WrtCdEvrydy wrote: post #14

Earlier quoted context omitted.

The issue that the ISP doesn't want complaints so those routers are always set to auto-hop at maximum speed. Since most apartment complexes use the same company, the hops are always around the same time so you basically have these routers screaming at maximum speed and moving between channels.

What are you talking about? Your wifi router isn't jumping channels unless you have something fairly sophisticated (read auto channel assignment that recalibrates periodically when nobody is connected).

enthusiast (eg. vanilla-openwrt) and enterprise gear won't, but soho and consumer routers totally do, because in a high density, non-cooperative environments (apartment) it has some potential to make it suck less and ppl like and pay for them "smarts".

Re: 2450MHz radiation induces stress and anxiety like behavior in rats (2019)

#70

Post by oefrha »

karlkloss wrote: post #57
bb88 wrote: post #16

Some say Havana syndrome is caused by microwave radiation.

The sun also emits microwaves, so stay out of the sun.

As someone with sun allergy, yes, I do stay out of the sun. Being exposed without ample sunscreen for even three minutes can have a pretty immediate effect. Of course, that’s due to UV, not microwave.
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