Discussion:
[ot] on cellphone
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a***@gmail.com
2018-03-09 12:48:10 UTC
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Can one cellphone capable emit the right frequency wave elettro magnetic for cause cancer? (if that exist)
m***@gmail.com
2018-03-09 13:09:54 UTC
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Post by a***@gmail.com
Can one cellphone capable emit the right frequency wave elettro magnetic for cause cancer? (if that exist)
http://lmgtfy.com/?q=cellphone+cancer - now b*gg*r off, will you?
Malcolm McLean
2018-03-09 13:28:42 UTC
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Post by a***@gmail.com
Can one cellphone capable emit the right frequency wave elettro magnetic
for cause cancer? (if that exist)
Unlikely. Cellphone waves are about half a metre long. Cells are 10 to 100
micrometres long. So the radio waves are unlikely to excite anything
damaging within the cell. Gamma rays (< 1 nano metre) and even visible
light (400-700 nanometres) can however cause cancer.
bartc
2018-03-09 13:59:02 UTC
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Post by Malcolm McLean
Post by a***@gmail.com
Can one cellphone capable emit the right frequency wave elettro magnetic
for cause cancer? (if that exist)
Unlikely. Cellphone waves are about half a metre long. Cells are 10 to 100
micrometres long. So the radio waves are unlikely to excite anything
damaging within the cell. Gamma rays (< 1 nano metre) and even visible
light (400-700 nanometres) can however cause cancer.
1.8GHz waves would be 17cm. Microwave ovens work at 2.5GHz, some 12cm
(about the same as WiFi actually), and they can cook food. Including,
presumably, live flesh.

So a different kind of damage, but unlikely given the somewhat different
frequency (I don't know how critical that is), and the fact that few
cellphones radiate 800W of RF.
--
bartc
David Brown
2018-03-09 16:34:30 UTC
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Post by bartc
Post by Malcolm McLean
Post by a***@gmail.com
Can one cellphone capable emit the right frequency wave elettro magnetic
for cause cancer? (if that exist)
Unlikely. Cellphone waves are about half a metre long. Cells are 10 to 100
micrometres long. So the radio waves are unlikely to excite anything
damaging within the cell. Gamma rays (< 1 nano metre) and even visible
light (400-700 nanometres) can however cause cancer.
Visible light does not cause cancer - it is easily blocked by the outer
layers of dead skin cells. And even if it were not, it is too low
frequency (or too high wavelength) to damage the DNA. To cause cancer,
you need to damage (ionise) DNA or other critical molecules in the cells
- and these are a lot smaller than the cell sizes. So you need at least
ultraviolet light to cause damage that could lead to cancer. (Thus lots
of sunshine can be a cancer risk - lots of indoor lighting is not.)
Post by bartc
1.8GHz waves would be 17cm. Microwave ovens work at 2.5GHz, some 12cm
(about the same as WiFi actually), and they can cook food. Including,
presumably, live flesh.
Yes. But contrary to popular belief, microwave ovens don't work by
ionising water or fat molecules, or causing them to resonate by sending
microwaves that have wavelengths that match the size of water molecules.
So microwaves don't cause any molecular damage in the way that gamma
rays or hard x-rays can - it is just dialectric heating.
Post by bartc
So a different kind of damage, but unlikely given the somewhat different
frequency (I don't know how critical that is), and the fact that few
cellphones radiate 800W of RF.
Certainly cellphones (and Wifi modules, and Bluetooth modules) can cause
heating in water and fat based stuff - like most of your food, and most
of your body. But you'd have to implant the phone on the inside of your
brain and turn up the RF power by a few orders of magnitude to make a
bigger difference to your brain temperature than you get from thinking
hard. (As you say, phones don't give off 800W of microwave power.) The
main source of cellphone to brain heating is the warmth from the phone
conducted through your ear, rather than RF radiation.

So if phones were going to cause cancer through heating, sticking your
finger in your ear is likely to have a bigger effect.
Mr. Man-wai Chang
2018-03-09 14:56:10 UTC
Permalink
Post by Malcolm McLean
Post by a***@gmail.com
Can one cellphone capable emit the right frequency wave elettro magnetic
for cause cancer? (if that exist)
Unlikely. Cellphone waves are about half a metre long. Cells are 10 to 100
micrometres long. So the radio waves are unlikely to excite anything
damaging within the cell. Gamma rays (< 1 nano metre) and even visible
light (400-700 nanometres) can however cause cancer.
You talking about prolonged exposure or not?
--
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/ v \ Simplicity is Beauty!
/( _ )\ May the Force and farces be with you!
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Mr. Man-wai Chang
2018-03-09 14:58:04 UTC
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Post by Malcolm McLean
Unlikely. Cellphone waves are about half a metre long. Cells are 10 to 100
micrometres long. So the radio waves are unlikely to excite anything
damaging within the cell. Gamma rays (< 1 nano metre) and even visible
light (400-700 nanometres) can however cause cancer.
BTW, you forgot to mention those who live right under mobile network
ground stations in tall buildings worldwide!! :)
--
@~@ Remain silent! Drink, Blink, Stretch! Live long and prosper!!
/ v \ Simplicity is Beauty!
/( _ )\ May the Force and farces be with you!
^ ^ (x86_64 Ubuntu 9.10) Linux 2.6.39.3
不借貸! 不詐騙! 不賭錢! 不援交! 不打交! 不打劫! 不自殺! 不求神! 請考慮綜援
(CSSA):
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David Brown
2018-03-09 15:43:07 UTC
Permalink
Post by Malcolm McLean
Post by a***@gmail.com
Can one cellphone capable emit the right frequency wave elettro magnetic
for cause cancer? (if that exist)
Unlikely. Cellphone waves are about half a metre long. Cells are 10 to 100
micrometres long. So the radio waves are unlikely to excite anything
damaging within the cell. Gamma rays (< 1 nano metre) and even visible
light (400-700 nanometres) can however cause cancer.
It is not "unlikely" - it is impossible. Cell phones are only
carcinogenic if you eat them.

It is a flat-earther myth.
Kenny McCormack
2018-03-09 17:52:53 UTC
Permalink
Post by David Brown
Post by Malcolm McLean
Post by a***@gmail.com
Can one cellphone capable emit the right frequency wave elettro magnetic
for cause cancer? (if that exist)
Unlikely. Cellphone waves are about half a metre long. Cells are 10 to 100
micrometres long. So the radio waves are unlikely to excite anything
damaging within the cell. Gamma rays (< 1 nano metre) and even visible
light (400-700 nanometres) can however cause cancer.
It is not "unlikely" - it is impossible. Cell phones are only
carcinogenic if you eat them.
It is a flat-earther myth.
People said all these same things about tobacco and smoking for hundreds of
years.
--
The plural of "anecdote" is _not_ "data".
David Brown
2018-03-09 18:22:40 UTC
Permalink
Post by Kenny McCormack
Post by David Brown
Post by Malcolm McLean
Post by a***@gmail.com
Can one cellphone capable emit the right frequency wave elettro magnetic
for cause cancer? (if that exist)
Unlikely. Cellphone waves are about half a metre long. Cells are 10 to 100
micrometres long. So the radio waves are unlikely to excite anything
damaging within the cell. Gamma rays (< 1 nano metre) and even visible
light (400-700 nanometres) can however cause cancer.
It is not "unlikely" - it is impossible. Cell phones are only
carcinogenic if you eat them.
It is a flat-earther myth.
People said all these same things about tobacco and smoking for hundreds of
years.
Yes, but that was before anybody came up with the idea of actually
/testing/ things, rather than just believing the word of the salesmen.
Malcolm McLean
2018-03-09 18:57:31 UTC
Permalink
Post by David Brown
Post by Kenny McCormack
Post by David Brown
Post by Malcolm McLean
Post by a***@gmail.com
Can one cellphone capable emit the right frequency wave elettro magnetic
for cause cancer? (if that exist)
Unlikely. Cellphone waves are about half a metre long. Cells are 10 to 100
micrometres long. So the radio waves are unlikely to excite anything
damaging within the cell. Gamma rays (< 1 nano metre) and even visible
light (400-700 nanometres) can however cause cancer.
It is not "unlikely" - it is impossible. Cell phones are only
carcinogenic if you eat them.
It is a flat-earther myth.
People said all these same things about tobacco and smoking for hundreds of
years.
Yes, but that was before anybody came up with the idea of actually
/testing/ things, rather than just believing the word of the salesmen.
Actually we still haven't identified the carcinogenic component of
tobacco smoke, much less its mode of effect. It's difficult because
virtually all smokers start in their teenage years, whilst the first
cancers are diagnosed in people in their fifties, and mostly in their
sixties or later. The link has been identified epidemologically, and
that was only possible in the 20th century, which saw the development
of government health statistics and a huge rise in the smoking population.

The American tobacco firms resisted admitting to the link long after it
became obvious that it was right. But it's obvious partly because of
the intuitive link between inhalation of smoke and damage to the lung,
partly because there's a statistical correlation.
Robert Wessel
2018-03-09 20:01:30 UTC
Permalink
On Fri, 9 Mar 2018 10:57:31 -0800 (PST), Malcolm McLean
Post by Malcolm McLean
Post by David Brown
Post by Kenny McCormack
Post by David Brown
Post by Malcolm McLean
Post by a***@gmail.com
Can one cellphone capable emit the right frequency wave elettro magnetic
for cause cancer? (if that exist)
Unlikely. Cellphone waves are about half a metre long. Cells are 10 to 100
micrometres long. So the radio waves are unlikely to excite anything
damaging within the cell. Gamma rays (< 1 nano metre) and even visible
light (400-700 nanometres) can however cause cancer.
It is not "unlikely" - it is impossible. Cell phones are only
carcinogenic if you eat them.
It is a flat-earther myth.
People said all these same things about tobacco and smoking for hundreds of
years.
Yes, but that was before anybody came up with the idea of actually
/testing/ things, rather than just believing the word of the salesmen.
Actually we still haven't identified the carcinogenic component of
tobacco smoke, much less its mode of effect. It's difficult because
virtually all smokers start in their teenage years, whilst the first
cancers are diagnosed in people in their fifties, and mostly in their
sixties or later. The link has been identified epidemologically, and
that was only possible in the 20th century, which saw the development
of government health statistics and a huge rise in the smoking population.
The American tobacco firms resisted admitting to the link long after it
became obvious that it was right. But it's obvious partly because of
the intuitive link between inhalation of smoke and damage to the lung,
partly because there's a statistical correlation.
Unlike exposure to cell phone levels of RF, you can easily give tons
of mice cancer by exposing them to tobacco smoke. While you might
argue the applicability of rodent studies to humans, but it's clear
that there are major parallels in the systems.

And even straight-forward epidemiological studies demonstrate
considerable impact from tobacco, again unlike cell phone studies
which have at best (worst?) shown correlations only slightly above the
noise levels.

OTOH, the existing evidence (both direct and epidemiological studies)
appears to strongly suggest that whatever risk there may be from cell
phone use may be, it is modest, even to mice. And to drag this at
least to the vicinity of the topicality ballpark, much of this sort of
medical testing has the same fundamental problem that testing has in
relation to proving that computer programs are correct.

Mr. Man-wai Chang
2018-03-09 14:54:12 UTC
Permalink
Post by a***@gmail.com
Can one cellphone capable emit the right frequency wave elettro magnetic for cause cancer? (if that exist)
The answer is usually either "not enough evidence", "further research
needed" or "unlikely".

Do you know how much money the entire mobile phone industry worth? Would
you dare to damage their interests without getting bullied if not
assassinated? :)
--
@~@ Remain silent! Drink, Blink, Stretch! Live long and prosper!!
/ v \ Simplicity is Beauty!
/( _ )\ May the Force and farces be with you!
^ ^ (x86_64 Ubuntu 9.10) Linux 2.6.39.3
不借貸! 不詐騙! 不賭錢! 不援交! 不打交! 不打劫! 不自殺! 不求神! 請考慮綜援
(CSSA):
http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa
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