I went on Facebook (I know I know I know) and they are selling tinfoil hats.

[clayfoot@mastodon.social]

@linuxandyarn @futurebird Well that's just silly

[adrake@sfba.social]

@muddle @futurebird @oldclumsy_nowmad the FCC limit on 2.4GHz transmitters is 1W for sufficiently spread-spectrum devices (including WiFi). The maximum emissions in any particular direction are capped at a level equivalent to a 4W omnidirectional antenna (this equivalent measurement is called EIRP). Most wifi devices operate well below that level since it's rough on battery life.

Microwave ovens are limited by FDA to leaking a max of 5mW/cm^2 from any point on the oven's surface (measured 2in away). That works out to be a little below the power density you get from a worst-case WiFi transmitter at 3 inches away.

The 99.7 number is the claimed shielding performance of the hat, not any regulations.

[samanthajanesmith@lgbtqia.space]

@muddle @oldclumsy_nowmad @futurebird IEEE 299 is about standard measurement practice

[samanthajanesmith@lgbtqia.space]

@cinebox @futurebird @oldclumsy_nowmad @muddle or worse...

[muddle@infosec.exchange]

@adrake @futurebird @oldclumsy_nowmad ah, I misread what you said about 99.7% initially. I didn't realise you were talking about the hat. So I guess I overestimated the effectiveness of the shielding and, hence, also overestimated the leakage

I also did look up some more reputable info on max wireless tx power and was surprised to find that in some countries it can even go up to 4W (which tallies with what you said):

Maximum wifi transmission power per country

Wolph (w.wol.ph)

Taken together, wifi and ovens seem to be roughly comparable rather than there being the orders-of-magnitude differences that I expected (with ovens emitting more radiation).

Thanks for the correction. I guess I'll have to retire my "but microwaves leak more energy" argument when dealing with (literal) tinfoil hatters...

[makerblock@mastodon.social]

RE: https://sauropods.win/@futurebird/116342201450394205

Now, I'm not in favor of spam / scam callers...

But, I somehow feel less bad about the idea of someone selling snake oil brand snake oil clearly labeling the contents as snake oil (even if there are some outlandish claims) and letting fools and their money be parted?

[da_gut@dice.camp]

@futurebird @oldclumsy_nowmad @Anke @muddle

Light pollution is bad for plants as well. Let’s see if I can find that link.

Street light choice matters: impacts of presence and color on wild plants

bioRxiv - the preprint server for biology, operated by openRxiv, a nonprofit organization dedicated to advancing scientific communication

bioRxiv (www.biorxiv.org)

[burnitdown@beige.party]

@SamanthaJaneSmith @futurebird the shielding is there so you don't cook yourself at all. without it, you would need to stand dozens of metres away to operate the microwave.

[linuxandyarn@hachyderm.io]

@futurebird They're selling it for $88? If they're not laughing, they're seig heiling at trump rallies.

[adrake@sfba.social]

@muddle @futurebird @oldclumsy_nowmad I think it's not accidental that they're comparable. Both are expected to be used by the general population with no safety training, so both should have limits that are safe under most circumstances.

Licensed users have different rules. Amateur radio operators are licensed to transmit at up to 1500W (!) on most of the 2.4GHz band, but they take on the legal burden of ensuring that whatever they do doesn't expose others to unsafe levels of emissions.

[wakame@tech.lgbt]

@futurebird
Sounds like a scam.
Everyone knows that the microchips in Bill Gates' Covid vaccine are distributed through the whole body.
How else would the birdpeople from Vega know exactly the moment I take off my socks?

[luc0x61@mastodon.gamedev.place]

@futurebird When it reads "from your brain" it means to stop the WiFi and Bluetooth emissions coming from your brain?

[sabik@rants.au]

@futurebird
That's... not the part of your head that you need to be covering to avoid brain fog
#MaskUp #WearAMask

[bmebenji@mstdn.social]

@futurebird @alice … have y’all seen the movie “Joe Vs the Volcano?”

[mrgrumpymonkey@mastodon.social]

@futurebird The sheep will buy anything to stay relevant.

[rayocentric@mastodon.social]

@futurebird
Well... alot of people did buy the pet rock decades ago.

[ellie@ellieayla.net]

@futurebird I need a phone case made of this stuff.

[davesdogmaggie@mstdn.social]

@futurebird

* kicks self for not coming up with this first

[falcennial@mastodon.social]

@futurebird lol!

the fact somebody made a tinfoil hat look legitimately cool blows my mind.

[futurebird@sauropods.win]

@falcennial

They are all around us and we do not know.