Any one tried living in a cave?

This might help too.

http://fire.nist.gov/bfrlpubs/build97/PDF/b97123.pdf

Wonderful stuff for building right.

Synthesis of Graphene Aerogel with High Electrical Conductivity

https://pubs.acs.org/doi/abs/10.1021/ja1072299

This could be  NI radiation blocking insulator that is fireproof, see through and wonderfully light.  It holds 12 Guinness world records for physical properties. WOW!

Aerogel - Wikipedia

https://en.wikipedia.org/wiki/Aerogel

For comparison, typical wall insulation is 13 (US customary) or 2.7 (metric) for the same thickness. Its melting point is 1,473 K (1,200 °C; 2,192 °F). Until 2011, silica aerogel held 15 entries in Guinness World Records for material properties, including best insulator and lowest-density solid, though it was ousted from the latter ...

all aluminium bubble wrap

https://news.ncsu.edu/2013/07/wms-rabiei-bubble-wrap/

New Metallic Cushioning Material Offers Big Benefits Over Other Protective Materials

This stuff would be brill.  I am going to cover my yurt in it ASAP. Better then the plastic bubbles.

I first read about aerogel `15-20 years ago, and not long after that it was suggested that a perfectly uniform lattice would be optically clear. I never heard much after that.

The only super-insulation I've ever personally handled was a sample of the expanded silica low-temp stuff used on the space shuttle, and it was impressive: A friend of mine had me hold my finger against one side while he took a propane torch to the other, and after 30 seconds my side was barely warm. The sheet was ~3 mm thick.

Topical, since good insulation is a plus for anyone with ES who wants to avoid running A/C all the time.

It might offer all sort of non reflective possibilities.  If you could buy block or similar such. i wonder if it could stop TETRA and LW AM FM?  It does fill in the boxes for non reflective blocking .

Fancy a phone with no EM radiations to go in it?  

Apparently this is the thing.  Siemens Piezo S8 Sprechkapsel Grau

https://www.ebay.co.uk/itm/Siemens-Piezo-S8-Sprechkapsel-Grau/222471782992?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649

If you have bad RF neighbors you can always try one of these....

MFJ-931 Artificial Ground, 1.8 MHZ TO 30 MHZ, 300 Watts, Eliminate RF Hot Spots

https://www.ebay.co.uk/itm/MFJ-931-Artificial-Ground-1-8-MHZ-TO-30-MHZ-300-Watts-Eliminate-RF-Hot-Spots/131756301816?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649

Although I would probably rather move.

Has any one tried filling glass bricks with water?   They should stop radiations dead and allow light.  Any advice on how to stop them going green?? I am not sure except salt.

They open a world of possibilities.

https://www.google.co.uk/search?q=glass+bricks&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjVk5m79bnZAhWH0RQKHVNUDgkQ_AUICigB&biw=1146&bih=709

Electrically conductive building material

http://www.freepatentsonline.com/5908584.html


http://www.ccee.iastate.edu/files/2014/12/Alireza-Sassani.pdf

How to make Activated Charcoal to make conductive cement and concrete.


https://www.youtube.com/watch?v=dPabNV7TFFo


In this video I describe how to make Activated Charcoal. I didn't show how to make it because it would take over 24 hours to show. These are the steps to make Activated Charcoal. Use a hardwood for your charcoal, do not use treated lumber or painted lumber. You will need a cover to put over the wood when you burn it. I used an old charcoal grilling lid. You will then have to let the wood smolder for several hours till it goes out. Wait for the wood to cool to touch so you don't burn yourself when handling it. You will then break any large chunks of the charcoal into smaller pieces and put in a 5 gallon bucket. Make a solution of 25 percent Calcium Chloride or Zinc Chloride and 75 percent clean fresh water. Pour this mixture into your 5 gallon bucket and stir thoroughly. Put the lid on your bucket and let sit for 20-24 hours. Next you will remove the charcoal from the bucket and put it on a draining tray. Allow the charcoal to drain for 1 hour. For removal of any traces of chemicals from the charcoal, you can wash and rinse repeatedly with clean fresh water. After washing keep the charcoal in the draining tray for draining. After this is complete then put your charcoal in a large pan and put it in the oven. Set your oven to 215-230 degrees Fahrenheit and bake for about 3 hours. After baking remove the now Activated Charcoal from the oven and crush it into a fine powder. For future use store the activated charcoal in a zip lock bags or airtight container.

"one engineer told me that the transformers on residential power lines in the U.S. do isolate to some degree"
if this is correct and the coils are responsible ( not additional electronic components ), perhaps due to lower efficiency at higher frequencies ( just guessing here, as you know i know little about electronics, just high school level minus memory loss ), transforming back and forth ( e.g. 110 v to 220 v and then 220 v to 110 v ) would be an alternative filtering solution.
of course close to the transformer there will be unpleasant emf and it may not be the most efficient way.
i have to read more within this thread, do not understand a few things yet.

earthworm wrote

if this is correct and the coils are responsible ( not additional electronic components ), perhaps due to lower efficiency at higher frequencies ( just guessing here, as you know i know little about electronics, just high school level minus memory loss ), transforming back and forth ( e.g. 110 v to 220 v and then 220 v to 110 v ) would be an alternative filtering solution.
of course close to the transformer there will be unpleasant emf and it may not be the most efficient way.

You should look at isolation transformers (1:1 transformers): https://www.jameco.com/z/ITR300-Power-Transformer-Isolation-120VAC-120VAC-300Va_181315.html

The reason I haven't bought one is that they're kind of expensive (relative to capacity) and I don't know how much better they would be than a good filter. The fields near them are going to be bad, but a toroidal shape is supposed to reduce that.

https://toroid.com/Products/General-Isolation-Transformers

Natural background level (all RF frequencies) 0.000001 micro w/m2 0.00002 v/m

Thanks to   http://www.powerwatch.org.uk/science/intguidance.asp

The lowest levels I can find any where here are around  0.5 micro watts/m2  I cannot block this reading with metal. CAN YOU FIND LOWER???  Next time I go in a deep cave I will tell you my readings.

Does this mean that there is 200000 times the natural level of radiation in the middle of the night every where now?  How much more ionizing is there after 1000 A-bombs?  

So many questions and no where to find out???

Plop Plop wrote

Has any one tried filling glass bricks with water?

That's actually a really cool idea. I originally thought that you would need continuity between the blocks, but maybe not: https://en.wikipedia.org/wiki/Electromagnetic_absorption_by_water#Microwaves_and_radio_waves

They should stop radiations dead and allow light.  Any advice on how to stop them going green?? I am not sure except salt.

Canning techniques, maybe? Pure water keeps pretty well, but you probably want it to keep essentially forever.

You could probably mix in a fair amount of alcohol.

Another material to consider:

https://en.wikipedia.org/wiki/Coroplast

https://www.ebay.com/itm/4mm-Translucent-24-x-48-4-pack-Corrugated-Plastic-Coroplast-Sheets-Sign/182390941413?epid=519827613&hash=item2a7758e6e5:g:xVAAAOSwwpdW4JYO

It's used for political yard signs in the US, so there's a lot of the stuff around. You could caulk the ends.

I can not find or understand why you may not need continuity between the blocks, but also noteworthy is that salt water is even better, and high concentration of added salt might not be inviting for algue-species present in the water.
You could also filter or cook the water first, apart from adding alcohol, it needs experimenting.
"Radiocommunication at GHz frequencies is very difficult in fresh waters and even more so in salt waters."
The question remains how it shields off in the MHz-range, it should be tested.
Also if more layers of blocks that cover the gaps would be helpful.
I thought of putting a bed in a smaller aquarium that sits in a larger one, with water in between the glass, and without a lid in order to acces it freely, as most pollution comes from the sides anyway unless one lives in an apartment with neighbours all around which is a bad idea to begin with.

I was referring to this passage from the link:

"Liquid water has a broad absorption spectrum in the microwave region, which has been explained in terms of changes in the hydrogen bond network giving rise to a broad, featureless, microwave spectrum.[24] The absorption (equivalent to dielectric loss) is used in microwave ovens to heat food that contains water molecules. A frequency of 2.45 GHz, wavelength 122 mm, is commonly used."

Deionized water is non-conductive, so if it heats up in a microwave, then you don't need continuity. (That's a little fussy to test because trace impurities can make it conductive.)