Is this true?

[Conpiracies]

Hi, so I have a conspiracy. Most of us have network sticks / network dongles or whatever we call them. Now, I wonder, because a lot of people say, due to the waves coming from the stick going to the router, there shouldn't be much in between, especially metallic objects as it bounces off. Well, I have a theory. Do the waves bounce off our bodies? Yes, it sounds crazy, I know. But our blood contains Iron, which help the blood cells attract oxygen, so I wonder if the waves bounce off the iron in our blood.

 

Please answer, I am quite curious.

[SansVarnic]

Yes.

radio waves bounce off everything, depending on the density of the material (there as so very much more of an explanation) is how much is bounced back versus absorbed vs passes through.

 

And no there is zero conspiracy with this, just science.

[Conpiracies]

2 minutes ago, SansVarnic said:

Yes.

radio waves bounce off everything, depending on the density of the material (there as so very much more of an explanation) is how much is bounced back versus absorbed vs passes through.

 

And no there is zero conspiracy with this, just science.

Thank you. Sorry, I was just looking at my network stick randomly and thought of that question as I was also thinking about my science exam about to come up.

[Dissitesuxba11s]

It would depend on the frequency of the signal. Check out LTT's video on 802.11ad Wifi.

[Conpiracies]

1 minute ago, Dissitesuxba11s said:

It would depend on the frequency of the signal. Check out LTT's video on 802.11ad Wifi.

Thank you.

[LAwLz]

6 hours ago, Conpiracies said:

Well, I have a theory. Do the waves bounce off our bodies? Yes, it sounds crazy, I know. But our blood contains Iron, which help the blood cells attract oxygen, so I wonder if the waves bounce off the iron in our blood.

WiFi doesn't really bounce of our bodies. They do a little, but the vast majority is absorbed. Humans are about 60-70% water, and water is extremely efficient at absorbing 2.4GHz radiowaves. It's no coincident that microwaves happens to also operate at 2.4GHz. It is one of the most optimal frequencies because it is so easily absorbed by water molecules.

 

I think it's great that you came up with a theory and asked about it by the way. You're quite far off with your "iron in blood causes radiowaves to bounce off us" thought, but it was a good idea nonetheless.

The average, healthy, human male (about 177cm tall, weighting about 70kg) has about 4 grams of iron in his body. That means that less than 0.006% of his body is iron. The 60% water plays a far bigger role than the iron.