Radblock mobile phone radiation blocker... - Page 1
Forum section: electronics / general

author: Stephen Hill
author_rank: Regular Contributor
timestamp: June 22, 2012, 08:31:52 am
content: This appeared in a newsletter I received this morning. This has to be BS?http://www.microdirect.co.uk/Home/Product/54548Quote

author: Psi
author_rank: Super Contributor
timestamp: June 22, 2012, 08:43:20 am
content: Yeah the product is BS, (although it may do what it says from an electrical/radiation perspective).On the other hand, i wouldn't go so far as to say electromagnetic radiation has absolutely zero impact on people.It's theoretically possible that it does effect some people in a way currently unknown.But even if it does, that product isn't going to cause any significant benefit.I expect >90% of the people who say it gives them "headaches" (or other issues) are experiencing some sort of psychosomatic effect where they believe EM radiation to be harmful so their body creates real symptoms.The same effect causes their symptoms to improve when they buy/use the device for the same reason.Which further promotes the product.

author: amyk
author_rank: Super Contributor
timestamp: June 23, 2012, 12:14:25 pm
content: Quote from: Psi on June 22, 2012, 08:43:20 amThat reminds me of this:http://mybroadband.co.za/news/wireless/11099-massive-revelation-in-iburst-tower-battle.htmlIncidentally I also found thishttp://www.buergerwelle.de/pdf/sunflower_pamphlet3_1.pdfwhich is full of misinformation and makes absolutely no mention of AM or FM radio, the EM fields that everyone claiming to be affected seems to forget about.

author: Mint.
author_rank: Frequent Contributor
timestamp: June 23, 2012, 12:29:22 pm
content: I really don't understand why it is such a big deal with electronic "radiation". Has it even been proven that electronics cause health problems?

author: Psi
author_rank: Super Contributor
timestamp: June 23, 2012, 12:47:13 pm
content: Quote from: Mint. on June 23, 2012, 12:29:22 pmThere have been some studies that indicate an increased cancer risk but they haven't been considered "legitimate enough" or been repeatable. Also tests conducted by others have shown no increased cancer risk. I don't think the issue is really understood so testing for it is unpredictable.Also you're trying to prove a negative, so there really isn't an answer.

author: G7PSK
author_rank: Super Contributor
timestamp: June 23, 2012, 04:38:08 pm
content: Quite likely if there is an increase of cancer from electronic equipment it is from the chemical compounds that are given off by the equipment rather then any EMF's. A lot of older boards were based on phenolic resins which are carcinogenic and as cancer generally takes a long time to show itself it could well be from this that any increase in the cancer rates is from and also as the worlds population is generally ageing and detection of cancers is getting better one would expect to see a rise. Any study to find a causal link would need to be in the younger population to look for an unusual rise in cancers among them looking at 60 year business men is not going to do a lot of good proving anything one way or another.

author: Simon
author_rank: Unknown
timestamp: June 23, 2012, 06:15:37 pm
content: If it worked you'd not be making or receiving any more phone calls !!! nuf said !

author: Stephen Hill
author_rank: Regular Contributor
timestamp: June 23, 2012, 10:48:24 pm
content: Quote from: Simon on June 23, 2012, 06:15:37 pmI'm sure the people who would buy this wouldn't own a mobile phone.

author: Sionyn
author_rank: Frequent Contributor
timestamp: June 23, 2012, 11:02:54 pm
content: remind me of those microwave this idiots and their tin foil shieldanywayand heres some idiot on cnn

author: Psi
author_rank: Super Contributor
timestamp: June 24, 2012, 12:23:34 am
content: This reminds me, if you see any old RF metal can transistors leaking white power, or white spots on the case. Don't touch them.It's likely Beryllium oxide which is quite toxic.I had a bad headache all day from just touching it for a few seconds.

author: G7PSK
author_rank: Super Contributor
timestamp: June 24, 2012, 08:46:19 am
content: I used to take transistors apart when I was a youngster in order to make photo transistors from them I got the white paste on my hands many times with no ill affects, The problem is if you breath in the powder as it causes an inflammatory lung disease which can turn to cancer but you need a fair amount of exposure for that, a bit on your hands should cause no harm as long as you wash them as soon as you can and don't rub your eyes or nose/mouth in the mean time.

author: Mint.
author_rank: Frequent Contributor
timestamp: June 24, 2012, 09:19:34 am
content: Quote from: G7PSK on June 24, 2012, 08:46:19 amMay I ask the how did you make photo transistors from transistors?

author: Simon
author_rank: Unknown
timestamp: June 24, 2012, 09:23:48 am
content: Quote from: Mint. on June 24, 2012, 09:19:34 amI believe that silicone is naturally susceptible to light, hence solar panels

author: Stephen Hill
author_rank: Regular Contributor
timestamp: June 24, 2012, 09:30:54 am
content: This wikipedia article is worth a read:http://en.wikipedia.org/wiki/Mobile_phone_radiation_and_health

author: SeanB
author_rank: Super Contributor
timestamp: June 24, 2012, 11:35:48 am
content: Old transistors were glass devices, with a black paint coating to keep light out. Later that was changed to a cheaper method using a glass leadthrough in a steel ring, with the outside provided by a thin aluminium can, and the space inside was filled with a grease to keep moisture away from the device and to conduct heat to the case. This grease was made from mineral oil, mixed with a fine bentonite clay, to make a thick paste. Not toxic really, just would be an emetic from the mineral oil.RF transistors were made differently, using a Beryllium oxide insulator ( pink in colour) to conduct heat to the mounting pad, the BeO providing a low thermal resistance along with a low loss at RF, so that there would be lower loss in the actual device, but you could run it at high current and high power. Later on the lower cost units went to a silicon dioxide ceramic as an insulator, as the processing had allowed the chips to be run hotter, with good gain, and the ceramic could be bonded to the chips easily.